Chapter XXIV: Analytical Keys

By the Author.

CLASS FUNGI.

SUB-CLASS BASIDIOMYCETES.[F]

Plants of large or medium size; fleshy, membranaceous, leathery, woody or gelatinous; growing on the ground, on wood or decaying organic matter; usually saprophytic, more rarely parasitic. Fruiting surface, or hymenium, formed of numerous crowded perpendicular basidia, the apex of the latter bearing two to six (usually four) basidiospores, or the basidiospores borne laterally; in many cases cystidia intermingled with the basidia. Hymenium either free at the beginning, or enclosed either permanently or temporarily in a more or less perfect peridium or veil. Basidiospores continuous or rarely septate, globose, obovoid, ellipsoidal to oblong, smooth or roughened, hyaline or colored, borne singly at the apex of sterigmata.

Order _Gasteromycetes_. Plants membranaceous, leathery or fleshy, furnished with a peridium and gleba, the latter being sometimes supported on a receptacle. Hymenium on the surface of the gleba which is enclosed within the peridium up to the maturity of the spores or longer; spores continuous, sphæroid or ellipsoid, hyaline or colored. Puff-balls, etc.

Order _Hymenomycetes_. Hymenium, at the beginning, borne on the free outer surface of the compound sporophore, or if at first enclosed by a pseudo-peridium or veil it soon becomes exposed before the maturity of the spores; mushrooms, etc.

HYMENOMYCETES.

Analytical Key of the Families.

Plants not gelatinous; basidia continuous. 1

Plants gelatinous or sub-gelatinous,
basidia forked, or divided longitudinally
or transversely. 4

=1=--Hymenium uneven, i. e., in the form of
radiating plates, or folds; or a
honey-combed surface, or reticulate,
warty, spiny, etc. 2

Hymenium smooth (not as in B, though it may
be convolute and irregular, or ribbed, or
veined). 3

=2=--Hymenium usually on the under side,
in the form of radiating plates, or strong
folds. The genus Phlebia in the Hydnaceae
has the hymenium on smooth, somewhat
radiating veins which are interrupted and
irregular. One exotic genus has the
hymenium on numerous irregular obtuse
lobes (Rhacophyllus). =Agaricaceæ.= 17

Hymenium usually below (or on the outer
surface when the plant is spread over the
substratum), honey-combed, porous, tubulose,
or reticulate; in one genus with short,
concentric plates. =Polyporaceæ.= 171

Hymenium usually below (or on the outer
surface when the plant is spread over the
substratum), warted, tuberculate, or with
stout, spinous processes; or with
interrupted vein-like folds in resupinate
forms. =Hydnaceæ.= 195

=3=--Plants somewhat corky or
membranaceous, more or less expanded;
hymenium on the under surface (upper
surface sterile), or on the outer or
exposed surface when the plant is spread
over the substratum (margin may then
sometimes be free, but upper surface,
i. e., that toward the substratum,
sterile). (Minute slender spines are
sometimes intermingled with the elements
of the hymenium, and should not be
mistaken for the stouter spinous
processes of the Hydnaceæ). =Thelephoraceæ.= 208

Plants more or less fleshy, upright
(never spread over the surface of the
substratum), simple or branched. Hymenium
covering both sides and the upper
surface. =Clavariaceæ.= 200

=4=--Basidia forked or longitudinally
divided; or if continuous then globose,
or bearing numerous spores; or if the
plant is leathery, membranous, or
floccose, then basidia as described.
Hymenium covering the entire free
surface or confined to one portion;
smooth, gyrose, folded or lobed; or
hymenium lamellate, porous, reticulate
or toothed forms which are gelatinous
and provided with continuous basidia may
be sought here. =Tremellineæ.= 204

FAMILY AGARICACEAE.

Pileus more or less expanded, convex, bell-shaped; stipe central or nearly so; or the point of attachment lateral, when the stipe may be short or the pileus sessile and shelving. Fruiting surface usually on the under side and exposed toward the earth, lamellate, or prominently folded or veined. Lamellæ or gills radiating from the point of attachment of the pileus with the stipe or with the substratum in the sessile forms; lamellæ simple or branched, rarely anastomosing behind, clothed externally on both surfaces with the basidia, each of which bears four spores (rarely two), cystidia often present.

Key to the North American genera.

THE WHITE-SPORED AGARICS.

(Sometimes there is a faint tinge of pink or lilac when the spores are in bulk, but the color is not seen under the microscope.)

=Plants= soft, fleshy or nearly so,
usually soon decaying; dried plants do
not revive well when moistened. 1

=Plants= tough, either fleshy or
gelatinous, membranaceous, corky or
woody, persistent, reviving when
moistened. 13

=1=--=Gills= acute on the edge. 2

=Edge= of the gills obtuse, or gills
fold-like, or vein-like, but prominent. 12

=2=--=Trama= of the pileus of
interwoven threads, not vesiculose. 3

=Trama= of the pileus vesiculose, plants
rigid but quite fragile. 11

=3=--=Gills= thin, not much
broadened toward the pileus. 4

=Gills= broadened toward the pileus, of
waxy consistency. =Hygrophorus.= 110

=4=--=Stipe= central or sub-central.
(Some species of Pleurotus are
sub-central, but the gills are usually
not decurrent.) 5

=Stipe= on one side of the pileus, or
none, rarely with the stipe sub-central.
(Some species of Clitocybe are
sub-central.) =Pleurotus.= 102

=5=--=Stipe= fleshy, pileus easily separating
from the stipe, gills usually free. 6

=Stipe= fleshy or fibrous and elastic,
pileus confluent with the stipe and of
the same texture. 7

=Stipe= cartilaginous, pileus confluent
with the stipe, but of a different texture. 9

=6=--=Volva= and annulus present on the stipe. =Amanita.= 52

=Volva= present, annulus wanting. =Amanitopsis.= 74

=Volva= wanting, annulus present. =Lepiota.= 77

=7=--=Annulus= and volva wanting. 8

=Annulus= usually present (sometimes
vague), volva wanting, gills attached to
the stipe. =Armillaria.= 83

=8=--=Gills= sinuate. =Tricholoma.= 87

=Gills= decurrent, not sinuate. =Clitocybe.= 89

=9=--=Gills= decurrent, pileus umbilicate. =Omphalia.= 100

=Gills= not decurrent. 10

=10=--=Margin= of pileus at first involute,
pileus flat or nearly so, somewhat fleshy
(some plants rather tough and tending
toward the consistency of Marasmius). =Collybia.= 92

=Margin= of the pileus at first straight,
pileus slightly bell-shaped, thin. =Mycena.= 93

=Gills= usually free, pileus deeply
plicate so that the gills are split where
they are attached to the pileus, pileus
membranaceous, very tender but not
diffluent. =Hiatula.=

=11=--=Plants= where bruised exuding a milky
or colored juice. =Lactarius.= 114

=Plants= not exuding a juice where
bruised. =Russula.= 125

=12=--=Gills= decurrent, dichotomous, edge
blunt. =Cantharellus.= 128

=Gills= not decurrent, plants parasitic
on other mushrooms. =Nyctalis.=

=13=--=Edge= of gills not split into two
laminæ. 14

=Edge= of gills split into two laminæ and
revolute. =Schizophyllum.= 136

=14=--=Plants= leathery, either fleshy,
membraneous, or gelatinous. 15

=Plants= corky or woody (placed by some
in Polyporaceæ). =Lenzites.=

=15=--=Stipe= separate from the pileus
(hymenophore), easily separating. 16

=Stipe= continuous with hymenophore. 17

=16=--=Plants= tough and fleshy,
membranaceous or leathery. =Marasmius.= 130

=Plants= gelatinous and leathery. =Heliomyces.=

=17=--=Edge= of the gills acute. 18

=Edge= of the gills obtuse. 19

=18=--=Edge= of gills usually serrate. =Lentinus.= 134

=Edge= of gills entire. =Panus.= 134

=19=--=Gills= dichotomous. =Xerotus.=

=Gills= fold-like, irregular. =Trogia.= 137

There are only a few rare species of Hiatula, Nyctalis, Heliomyces and Xerotus in the United States. None are here described.

THE OCHRE-SPORED AGARICS.

(The spores are yellowish brown or rusty brown.)

=Gills= not separating readily from 1

=Gills= sometimes separating readily
from the pileus, forked or anastomosing
at the base, or connected with vein-like
reticulations. =Paxillus.= 165

=1=--=Universal veil= not arachnoid
(i. e., not cobwebby). 2

=Universal veil= arachnoid, distinct
from the cuticle of the pileus, gills
powdery from the spores. =Cortinarius.= 161

=2=--=Stipe= central. 3

=Stipe= eccentric or none. =Crepidotus.= 159

=3=--=Volva= or annulus present on stipe. 4

=Volva= and annulus wanting. 5

=4=--=Stipe= with an annulus. =Pholiota.= 150

=Stipe= with a volva. =Locellina= (not
reported in U. S.).

=5=--=Gills= free from the stem. =Pluteolus.=

=Gills= attached. 6

=6=--=Gills= not dissolving nor becoming
powdery. 7

=Gills= dissolving into a gelatinous
or powdery condition, not diffluent as in
Coprinus. =Bolbitius.= 163

=7=--=Stipe= fleshy. 8

=Stipe= cartilaginous or
sub-cartilaginous. 10

=8=--=Gills= somewhat sinuate. 9

=Gills= adnate or decurrent. =Flammula.= 156

=9=--=Cuticle= of the pileus silky
or bearing fibrils. =Inocybe.= 158

=Cuticle= of pileus smooth, viscid. =Hebeloma.= 157

=10=--=Gills= decurrent. =Tubaria.= 159

=Gills= not decurrent. 11

=11=--=Margin= of pileus inflexed. =Naucoria.= 153

=Margin= of pileus straight, from
the first. =Galera.= 155

No species of Pluteolus are here described.

THE ROSY-SPORED AGARICS.

(The spores are rose color, pink, flesh or salmon color.)

=Stipe= central. 1

=Stipe= eccentric or none and pileus
lateral. =Claudopus.= 149

=1=--=Pileus= easily separating from the
stipe, gills free. 2

=Pileus= confluent with the stipe and of
the same texture, gills attached, in some
becoming almost free. 3

=2=--=Volva= present and distinct, annulus
wanting. =Volvaria.= 140

=Volva= and annulus wanting. =Pluteus.= 138

=3=--=Stipe= fleshy to fibrous, margin of
pileus at first incurved. 4

=Stipe= cartilaginous. 5

=4=--=Gills= sinuate. =Entoloma.= 143

=Gills= decurrent. =Clitopilus.= 142

=5=--=Gills= not decurrent (or if so only by
a minute tooth), easily separating from
the stipe. 6

=Gills= decurrent, pileus umbilicate. =Eccilia.= 148

=6=--=Pileus= slightly convex, margin at first
incurved. =Leptonia.= 147

=Pileus= bell-shaped, margin at first
straight and pressed close against
the stipe. =Nolanea.=

No species of Nolanea are described here.

THE BROWN-SPORED AGARICS.

(The spores are dark brown or purplish brown.)

=Pileus= easily separating from the
stem; gills usually free. 1

=Pileus= continuous with the stem;
gills attached. 2

=1=--=Volva= wanting, annulus
present. (Psalliota Fr.) =Agaricus.= 18

=Volva= present, annulus wanting. =Chitonia.=

=Volva= and annulus wanting. =Pilosace.=

=2=--=Veil= present. 3

=Veil= wanting or obsolete. 4

=3=--=Annulus= present, gills
attached. =Stropharia.= 31

=Annulus= wanting, veil remaining
attached to margin of pileus. =Hypholoma.= 26

=4=--=Stipe= tenacious, margin of pileus first
incurved. 5

=Stipe= fragile, margin of pileus at
first straight. =Psathyra.=

=5=--=Gills= sub-triangularly decurrent. =Deconica.=

=Gills= not decurrent. =Psilocybe.=

But few species of Psathyra, Deconica, Chitonia and Pilosace are noted from the United States. None are here described.

THE BLACK-SPORED AGARICS.

=Pileus= present to which the gills are
attached. 1

=Pileus= wanting, gills attached to
a disk at apex of stem from which they
radiate. =Montagnites.=[G]

=1=--=Gills= more or less
deliquescing, or pileus thin, membranous
and splitting between the laminæ of the
gills and becoming more or less plicate. =Coprinus.= 32

=Gills= not deliquescing, etc. 2

=2=--=Spores= globose, ovoid. 3

=Spores= elongate, fusiform (in some
species brown), plants with a slimy
envelope. =Gomphidius.= 49

=3=--=Pileus= somewhat fleshy, not striate,
projecting beyond the gills at the
margin; gills variegated in color from
groups of dark spores on the surface. 4

=Pileus= somewhat fleshy, margin striate,
gills not variegated. =Psathyrella.= 48

=4=--=Annulus= wanting, but veil
often present. =Panæolus.= 45

=Annulus= wanting, veil appendiculate on
margin of cap. =Chalymotta.= 48

=Annulus= present. =Anellaria.=

GLOSSARY OF THE MORE TECHNICAL TERMS USED IN THIS WORK.

Abbreviations:

cm. = centimeter (about 2-1/2 cm. make one inch).
mm. = millimeter (about 25 mm. make 1 inch).
µ = one micron (1000 µ = 1 mm.).

Adnate, said of the gills when they are attached squarely, or broadly,
to the stem.

Adnexed, said of gills when they are attached only slightly or only by
the upper angle of the stem.

Anastomose, running together in a net-like manner.

Annulus, the ring or collar around the stem formed from the inner or
partial veil.

Appendiculate, said of the veil when it clings in fragments to the
margin of the pileus.

Arachnoid, said of the veil when it is cobwebby, that is, formed of
loose threads.

Ascus, the club-shaped body which bears the spores inside
(characteristic of the Ascomycetes).

Basidium (pl. basidia) the club-shaped body which bears the spores in
the Basidiomycetes. These stand parallel, and together make up the
entire or large part of the hymenium or fruiting surface which
covers the gills, etc. Paraphyses (sterile cells) and sometimes
cystidia (longer sterile cells) or spines are intermingled with
the basidia.

Bulbous, said of the enlarged lower end of the stem in some mushrooms.

Circumscissile, splitting transversely across the middle, used to
indicate one of the ways in which the volva ruptures.

Cortina, a cobwebby veil.

Cuticle, the skin-like layer on the outside of the pileus.

Decurrent, said of the gills when they extend downward on the stem.

Diffluent, said of the gills when they dissolve into a fluid.

Dimidiate, halved, said of a sessile pileus semi-circular in form and
attached by the plane edge directly to the wood.

Echinulate, term applied to minute spinous processes, on the spores
for example.

Eccentric, said of a stem when it is attached to some other point than
the center of the pileus.

Fimbriate, in the form of a delicate fringe.

Fistulose, becoming hollow.

Floccose, term applied to indicate delicate and soft threads, cottony
extensions from the surface of any part of the mushroom.

Flocculose, minutely floccose.

Fugacious, disappearing.

Fuliginous (or fuligineous), dark brown, sooty or smoky.

Fulvous, tawny, reddish yellow.

Fusiform, spindle-shaped.

Fusoid, like a spindle.

Furfuraceous, with numerous minute scales.

Gleba, the chambered tissue forming the hymenium (fruiting surface) in
the puff-balls and their allies.

Hygrophanous, appearing to be water soaked.

Hymenium, the fruiting surface of the mushrooms and other fungi.

Hymenomycetes, the subdivision of the Basidiomycetes in which the
fruiting surface is exposed before the spores are ripe.

Hymenophore, the portion of the fruit body which bears the hymenium.

Hypha (pl. hyphæ), a single mycelium thread.

Imbricate, overlapping like the shingles on a roof.

Involute, folded or rolled inward.

Lamella (pl. lamellæ), the gills of the mushroom.

Mycelium, the vegetative or growing portion of the mushrooms, and
other fungi, made up of several or many threads.

Ocreate, applied to the volva where it fits the lower part of the
stem, as a stocking does the leg.

Pectinate, like the teeth of a comb.

Peridium, the wall of the puff-balls, etc.

Pileus (pl. pilei), the cap of the mushroom.

Plicate, plaited, or folded like a fan.

Punctate, with minute points.

Pulverulent, with a minute powdery substance.

Repand, wavy.

Resupinate, spread over the matrix, the fruiting surface external and
the pileus next the wood.

Revolute, rolled backward.

Rugose, wrinkled.

Rugulose, with minute wrinkles.

Saprophytic, growing on dead organic matter.

Sessile, where the pileus is attached directly to the matrix without
any stem.

Sinuate, said of the gills when they are notched at their junction
with the stem.

Stipe, the stem.

Sulcate, furrowed.

Squamulose, with minute scales.

Squarrose, with prominent reflexed scales.

Tomentose, with a dense, matted, hairy or woolly surface.

Trama, the interior portion of the gills or pileus.

Umbo, with a prominent boss or elevation, in the center of the pileus.

Umbilicate, with a minute abrupt depression in the center of the cap.

Veil, a layer of threads extending from the margin of the cap to the
stem (partial veil or marginal veil). A universal veil envelops
the entire plant.

Veins, elevated lines or folds running over the surface of the lamellæ
in some species, and often connected so as to form reticulations.

Ventricose, enlarged or broadened at the middle, bellied.

Vesiculose, full of small rounded vesicles, as the trama of the pileus
of a Russula.

Volva, a wrapper or envelope, which in the young stage completely
surrounds the plant, same as universal veil. At maturity of the
plant it may be left in the form of a cup at the base of the stem,
or broken up into fragments and distributed over the cap and base
of the stem.

FOOTNOTES:

[F] The sub-class Ascomycetes includes the morels, helvellas, cup fungi, etc., and many microscopic forms, in which the spores are borne inside a club-shaped body, the ascus. Only a few of the genera are described in this book, and the technical diagnosis will be omitted. See page 216.

[G] One American species in Texas.

INDEX OF GENERA, AND ILLUSTRATIONS.

NOTE.--In this index the generic and specific names have been
divided into syllables, and the place of the primary accent has
been indicated, with the single object of securing a uniform
pronunciation in accordance with the established rules of English
orthoepy.

Agaricus (A-gar'i-cus), 18--26.
arvensis (ar-ven'sis), 21, fig. 18.
campestris (cam-pes'tris), 1--9, 18, figs. 1--7, 12.
comtulus (com'tu-lus), 24, fig. 24.
cretaceus (cre-ta'ce-us), 79.
diminutivus (di-min-u-ti'vus), 26.
echinatus (ech-i-na'tus), 158.
fabaceus (fa-ba'ce-us), 23.
maritimus (ma-rit'i-mus), 142.
placomyces (pla-com'y-ces), 23, pl. 4, 5, figs. 21, 22, 23.
rodmani (rod'ma-ni), 20, fig. 17.
silvaticus (sil-vat'i-cus), 23.
silvicola (sil-vic'o-la), 20, figs. 19, 20.
subrufescens (sub-ru-fes'cens), 23.

Amanita (Am-a-ni'ta), 52.
cæsarea (cæ'-sa're-a), 70, pls. 18, 19, fig. 72.
cothurnata (coth-ur-na'ta), 66 69, pl. 17, figs. 68--70.
floccocephala (floc-co-ceph'a-la), 62, fig. 63.
frostiana (fros-ti-a'na), 54, 55, 67, pl. 1.
mappa (map'pa), 58.
muscaria (mus-ca'ri-a), 52--54, pls. 1, 12, 13, figs. 52--54.
pantherina (pan-the-ri'na), 69.
phalloides (phal-loi'des), 3, 14, 55--61, 78, pl. 14, figs. 55--58.
polypyramis (pol-y-pyr'a-mis), 74.
rubescens (ru-bes'cens), 71, 72, pls. 19, 20, figs. 73, 74.
spreta (spre'ta), 69, 70, fig. 71.
solitaria (sol-i-ta'ri-a), 72--74, pls. 21, 22, figs. 75, 76.
strobiliformis (strob-i-li-for'mis), 73.
velatipes (ve-lat'i-pes), 63--66, pls. 15, 16, figs. 64--67.
verna (ver'na), 60, 61, 78, figs. 59--61.
virosa (vi-ro'sa), 61, 62, fig. 62.

Amanitopsis (A-man-i-top'sis), 74.
farinosa (far-i-no'sa), 76, 77, fig. 78.
livida (liv'i-da), 75.
nivalis (ni-va'lis), 76.
spadicea (spa-dic'e-a), 75.
vaginata (vag-i-na'ta), 74--76, pl. 23, fig. 77.
volvata (vol-va'ta), 76.

Armillaria (Ar-mil-la'ri-a), 83.
aurantia (au-ran'ti-a), 84--86, fig. 86.
mellea (mel'le-a), 83, 84, pl. 27, fig. 85.

Annularia lævis (An-nu-la'ri læ'vis), 78.

Ascomycetes (As-co-my-ce'tes), 216.

Basidiomycetes (Ba-sid-i-o-my-ce'tes), 260.

Black-spored agarics, 32.

Bolbitius (Bol-bit'i-us), 163.
variicolor (va-ri-ic'o-lor), 164, fig. 158.

Boletinus (Bo-le-ti'nus), 172.
pictus (pic'tus), 183, fig. 175.
porosus (po-ro'sus), 184, pl. 63, fig. 176.

Boletus (Bo-le'tus), 172.
americanus (a-mer-i-ca'nus), 178, fig. 171.
brevipes (brev'i-pes), 179.
bulbosus (bul-bo'sus), 172.
chromapes (chro'ma-pes), 176, pl. 59, fig. 168.
edulis (e-du'lis), 172, 173, 176, pls. 55, 56, 57, figs. 164, 165.
felleus (fel'le-us), 173, pl. 58, fig. 166.
flavidus (flav'i-dus), 178.
granulatus (gran-u-la'tus), 178.
luteus (lu'te-us), 181, 182, pl. 62, figs. 173, 174.
obsonium (ob-so'ni-um), 177, pl. 61, fig. 170.
ornatipes (or-nat'i-pes), 174, 176.
punctipes (punc'ti-pes), 179, fig. 172.
retipes (re'ti-pes), 174--176, fig. 167.
scaber (sca'ber), 174.
subluteus (sub-lu'te-us), 181, 182.
subtomentosus (sub-tom-en-to'sus), 167, 168.
vermiculosus (ver-mic-u-lo'sus), 177, pl. 60, fig. 169.

Bovista (Bo-vis'ta), 209.

Calostoma (Ca-los'to-ma), 212.
cinnabarinum (cin-na-ba-ri'num), 212, 213, pl. 82, fig. 211.
lutescens (lu-tes'cens), 212.

Calvatia (Cal-va'ti-a), 209.

Cantharellus (Can-tha-rel'lus), 128.
aurantiacus (au-ran-ti'a-cus), 129, 130, pl. 41, figs. 127, 128.
cibarius (ci-ba'ri-us), 128, fig. 126.

Chalymotta retirugis (Chal-y-mot'ta re-ti-ru'gis), 48.

Clavaria (Cla-va'ri-a), 201.
botrytes (bo-try'tes), 202, fig. 202.
formosa (for-mo'sa), 201, pl. 80, fig. 201.
mucida (mu'ci-da), 203, fig. 204.
pistillaris (pis-til-la'ris), 203, fig. 203.

Clavariaceæ (Cla-va-ri-a'ce-æ), 200.

Coral fungi, 200.

Clitocybe (Cli-toc'y-be), 89.
candida (can'di-da), 89, pls. 28, 29, figs. 90, 91.
cyathiformis (cy-a-thi-for'mis), 90.
illudens (il-lu'dens), 90, fig. 92.
infundibuliformis (in-fun-dib-u-li-for'mis), 90, fig. 244.
laccata (lac-ca'ta), 89.
multiceps (mul'ti-ceps), 91, pl. 30, fig. 93.
pelletieri (pel-let-i-e'ri), 168.

Clitopilus (Cli-top'i-lus), 142.
orcella (or-cel'la), 143.
prunulus (pru'nu-lus), 142, pl. 44, fig. 138.

Collybia (Col-lyb'i-a), 92.
dryophila (dry-oph'i-la), 204, fig. 205.
longipes (lon'gi-pes), 93.
lachnophylla (lach-no-phyl'la), 132.
platyphylla (plat-y-phyl'la), 93.
radicata (rad-i-ca'ta), 92, pl. 31, fig. 94.
spinulifera (spin-u-lif'e-ra), 132.
velutipes (ve-lu'ti-pes), 92, pl. 32, fig. 95.

Coprinus (Co-pri'nus), 32.
atramentarius (a-tra-men-ta'ri-us), 40--42, pl. 10, figs. 39--42.
comatus (co-ma'tus), 33--40, pl. 9, figs. 31--38.
micaceus (mi-ca'ce-us), 15, 42--44, figs. 43, 44.

Corticium (Cor-tic'i-um), 208.

Cortinarius (Cor-ti-na'ri-us), 161.
cinnamomeus (cin-na-mo'me-us), 162, fig. 155.
collinitus (col-li-ni'tus), 161.
ochroleucus (och-ro-leu'cus), 163, pls. 50, 51, figs. 156, 157.
violaceus (vi-o-la'ce-us), 161.

Craterellus (Crat-e-rel'lus), 208.
cantharellus (can-tha-rel'lus), 208.
cornucopioides (cor-nu-co-pi-oi'des), 208.
pistillaris (pis-til-la'ris), 203.

Crepidotus (Crep-i-do'tus), 159.
applanatus (ap-pla-na'tus), 161.
calolepis (ca-lol'e-pis), 161.
chimonophilus (chi-mo-noph'i-lus), 160.
fulvotomentosus (ful-vo-tom-en-to'sus), 161.
herbarum (her-ba'rum), 160.
versutus (ver-su'tus), 160, fig. 154.

Dædalea ambigua (Dæ-da'le-a am-big'u-a), 16, 17, pl. 3, fig. 16.

Dictyophora (Dic-ty-oph'o-ra), 214.
duplicata (du-pli-ca'ta), 214, pl. 83, fig. 212.
ravenelii (rav-e-nel'li-i), 215, 216, pl. 84, figs. 213--215.

Discomycetes (Dis-co-my-ce'tes), 216.

Eccilia (Ec-cil'i-a), 148.
polita (po-li'ta), 148, fig. 143.

Entoloma (En-to-lo'ma), 143.
grayanum (gray-a'num), 144, 145, fig. 140.
jubatum (ju-ba'tum), 143, 144, fig. 139.
repandum (re-pan'dum), 143, 303, fig. 250.
strictius (stric'ti-us), 145, 146, fig. 141.

Exidia glandulosa (Ex-id'ia glan-du-lo'sa), 206.

Fistulina (Fis-tu-li'na), 171, 186.
firma (fir'ma), 186.
hepatica (he-pat'i-ca), 186, pl. 65.
pallida (pal'li-da), 186, 187, pls. 65, 66, fig. 180.

Flammula (Flam'mu-la), 156.
paradoxa (par-a-dox'a), 168.
polychroa (po-lych'ro-a), 156, 157, fig. 151.
rhodoxanthus (rhod-o-xan'thus), 168.
sapinea (sa-pin'e-a), 157.
tammii (tam'mi-i), 169.

Fomes (Fo'mes), 193, 194.

Galera (Ga-le'ra), 155.
antipoda (an-tip'o-da), 155.
coprinoides (cop-rin-oi'des), 155.
flava (fla'va), 155.
lateritia (lat-e-ri'ti-a), 155.
tenera (ten'e-ra), 155.

Geaster (Ge-as'ter), 209.

Gomphidius (Gom-phid'i-us), 49.
glutinosus (glu-ti-no'sus), 51.
nigricans (nig'ri-cans), 49--51, figs. 50, 51.
rhodoxanthus (rhod-o-xan'thus), 168.

Gomphus (Gom'phus), 168.

Gyrocephalus (Gy-ro-ceph'a-lus), 207.
rufus (ru'fus), 207, fig. 208.

Gyromitra esculenta (Gy-rom'i-tra es-cu-len'ta), 220.

Hebeloma (He-be-lo'ma), 157.
crustuliniforme (crus-tu-lin-i-for'me), 158, fig. 152.

Hedgehog fungi, 195.

Helvella (Hel-vel'la), 219.
crispa (cris'pa), 219.
lacunosa (lac-u-no'sa), 220, fig. 219.

Hydnaceæ (Hyd-na'ce-æ), 195.

Hydnum (Hyd'num), 195.
caput-medusæ (ca'put--me-du'sæ), 198.
caput-ursi (ca'put--ur'si), 197, pl. 77, fig. 196.
coralloides (cor-al-loi'des), 196, fig. 195.
erinaceus (er-i-na'ce-us), 198, fig. 197.
fragile (frag'i-le), 200.
graveolens (gra-ve'o-lens), 200.
imbricatum (im-bri-ca'tum), 198, fig. 200.
repandum (re-pan'dum), 198, pl. 78, fig. 198.
putidum (pu'ti-dum), 199, pl. 79, fig. 199.
velutinum (ve-lu'ti-num), 200.

Hygrophorus (Hy-groph'o-rus), 110.
chrysodon (chrys'o-don), 111, fig. 115.
coccineus (coc-cin'e-us), 114.
conicus (con'i-cus), 114.
eburneus (e-bur'ne-us), 111, pl. 38, fig. 116.
fuligineus (fu-li-gin'e-us), 113, fig. 117.
hypothejus (hy-po-the'jus), 114.
miniatus (min-i-a'tus), 113, 114.
pratensis (pra-ten'sis), 113.
psittacinus (psit-ta-ci'nus), 114.

Hymenochæte (Hy-me-no-chæ'te), 208.

Hymenomycetes (Hy-me-no-my-ce'tes), 261.

Hypholoma (Hyph-o-lo'ma), 26.
appendiculatum (ap-pen-dic-u-la'tum), 27, 28, pl. 7, figs. 26, 27.
candolleanum (can-dol-le-a'num), 28.
lachrymabundum (lach-ry-ma-bun'dum), 28--30, fig. 28.
perplexum (per-plex'um), 27.
rugocephalum (ru-go-ceph'a-lum), 30, pl. 8, fig. 29.
sublateritium (sub-la-te-ri'ti-um), 26, pl. 6, fig. 25.

Inocybe (I-noc'y-be), 158.
echinata (ech-i-na'ta), 158.
repanda (re-pan'da), 303, fig. 250.

Ithyphallus impudicus (Ith-y-phal'lus im-pu-di'cus), 216.

Lactarius (Lac-ta'ri-us), 114.
chelidonium (chel-i-do'ni-um), 124, pl. 39.
chrysorrheus (chrys-or'rhe-us), 122, fig. 125.
corrugis (cor-ru'gis), 116, fig. 118.
deliciosus (de-lic-i-o'sus), 123, pl. 39.
fuliginosus (fu-lig-i-no'sus), 118, fig. 120.
gerardii (ge-rar'di-i), 119.
indigo (in'di-go), 125, pl. 39.
lignyotus (lig-ny-o'tus), 117, fig. 119.
pergamenus (per-ga-me'nus), 121.
piperatus (pip-e-ra'tus), 120, fig. 122.
resimus (re-si'mus), 121, figs. 123, 124.
torminosus (tor-mi-no'sus), 119, fig. 121.
volemus (vo-le'mus), 121.

Lentinus (Len-ti'nus), 134.
lecomtei (le-comt'e-i), 135.
lepideus (le-pid'e-us), 135.
stipticus (stip'ti-cus), 135, 136.
vulpinus (vul-pi'nus), 134, pl. 42, figs. 131, 132.

Leotia lubrica (Le-o'ti-a lu'bri-ca), 221, fig. 221.

Lepiota (Lep-i-o'ta), 77.
acutesquamosa (a-cu-te-squa-mo'sa), 81.
americana (a-mer-i-ca'na), 80, 81, fig. 82.
asperula (as-per'u-la), 82, 83, pl. 26, fig. 84.
badhami (bad'ham-i), 81.
cristata (cris-ta'ta), 81, fig. 83.
naucina (nau-ci'na), 13, 77--79, pl. 24, figs. 79, 80.
naucinoides (nau-ci-noi'des), 77.
procera (pro-ce'ra), 79, pl. 25, figs. 81, 242.
rachodes (ra-cho'des), 79.

Leptonia (Lep-to'ni-a), 147.
asprella (as-prel'la), 147, fig. 142.
incana (in-ca'na), 147.

Lycoperdaceæ (Ly-co-per-da'ce-æ), 209.

Lycoperdon (Ly-co-per'don), 209.
cyathiforme (cy-a-thi-for'me), 210, pl. 81, fig. 209.
gemmatum (gem-ma'tum), 210, fig. 210.
giganteum (gi-gan'te-um), 210.
pyriforme (pyr-i-for'me), 211.

Marasmius (Ma-ras'mi-us), 130.
cohærens (co-hæ'rens), 132, 133, figs. 130, 249.
oreades (o-re'a-des), 131, fig. 129.
rotula (rot'u-la), 131.

Merulius (Me-ru'li-us), 171, 172, 194.
lacrymans (lac'ry-mans), 194, pl. 73, figs. 189, 190.
tremellosus (trem-el-lo'sus), 194, pl. 74, figs. 191, 192.

Mitremyces lutescens (Mi-trem'y-ces lu-tes'cens), 213.

Morchella (Mor-chel'la), 217.
bispora (bis'po-ra), 219.
conica (con'i-ca), 217, fig. 217.
crassipes (cras'si-pes), 219, pl. 86, fig. 218.
deliciosa (de-lic-i-o'sa), 219.
esculenta (es-cu-len'ta), 217, pl. 85, fig. 216.
semilibera (sem-i-lib'e-ra), 219.

Mucronella (Mu-cro-nel'la), 200.

Mycena (My-ce'na), 93.
acicula (a-cic'u-la), 97, 98, fig. 100.
cyanothrix (cy-an'o-thrix), 98, fig. 101.
epipterygia (e-pip-te-ryg'i-a), 96, 97, fig. 98.
galericulata (gal-e-ric-u-la'ta), 94, 245.
hæmatopa (hæ-mat'o-pa), 98--100, fig. 102.
polygramma (pol-y-gram'ma), 94, fig. 96.
prælonga (præ-lon'ga), 94, 95.
pura (pu'ra), 95, 96, fig. 97.
succosa (suc-co'sa), 100.
vulgaris (vul-ga'ris), 97, fig. 99.

Myriostoma (Myr-i-os'to-ma), 209.

Naucoria (Nau-co'ri-a), 153.
semiorbicularis (sem-i-or-bic-u-la'ris), 153, 154.
vernalis (ver-na'lis), 154, fig. 150.

Ochre-spored agarics, 150.

Omphalia (Om-pha'li-a), 100.
campanella (cam-pa-nel'la), 101, 254, pl. 33, figs. 103, 241.
epichysium (ep-i-chys'i-um), 101, fig. 104.

Panæolus (Pa-næ'o-lus), 45.
fimicola (fi-mic'o-la), 48.
papilionaceus (pa-pil-i-o-na'ce-us), 48, fig. 247.
retirugis (re-ti-ru'gis), 45--48, pl. 11, figs. 45--48, 248.
solidipes (so-lid'i-pes), 48.

Panus (Pa'nus), 134.
cyathiformis (cy-a-thi-for'mis), 135.
rudis (ru'dis), 135.
strigosus (stri-go'sus), 135.
stipticus (stip'ti-cus), 135, 136.

Paxillus (Pax-il'lus) 165.
atro-tomentosus (at-ro-tom-en-to'sus), 169, fig. 161.
corrugatus (cor-ru-ga'tus), 170, pl. 53, fig. 162.
flavidus (flav'i-dus), 168.
involutus (in-vo-lu'tus), 166, 167, fig. 159.
panuoides (pan-u-oi'des), 170, pl. 54, fig. 163.
rhodoxanthus (rhod-o-xan'thus), 167, 168, pl. 52, fig. 160.

Phalloideæ (Phal-loid'e-æ), 213.

Phlebia (Phle'bi-a), 195.
merismoides (mer-is-moi'des), pls. 75, 76, figs. 193, 194.

Pholiota (Pho-li-o'ta), 150.
adiposa (ad-i-po'sa), 151, 152, pl. 47, fig. 146.
aurivella (au-ri-vel'la), 152.
cerasina (ce-ras'i-na), 152.
johnsoniana (john-so-ni-a'na), 153, pl. 49, fig. 149.
marginata (mar-gi-na'ta), 151, fig. 147.
præcox (præ'cox), 150, 151, pl. 46, fig. 145.
squarrosa (squar-ro'sa), 152.
squarrosoides (squar-ro-soi'des), 152, pl. 48, fig. 148.
subsquarrosa (sub-squar-ro'sa), 152.
unicolor (u-nic'o-lor), 151.

Pleurotus (Pleu-ro'tus), 102.
applicatus (ap-pli-ca'tus), 109, 110, fig. 114.
corticatus (cor-ti-ca'tus), 106, pl. 37, fig. 110.
dryinus (dry'i-nus), 105, 106, pl. 36, figs. 109, 110.
ostreatus (os-tre-a'tus), 104, pl. 34, fig. 107.
petaloides (pet-a-loi'des), 107--109, figs. 112, 113.
sapidus (sap'i-dus), 104, 105, pl. 35, fig. 108.
serotinus (se-rot'i-nus), 109.
sulfureoides (sul-fu-re-oi'des), 107, fig. 111.
ulmarius (ul-ma'ri-us), 102--104, figs. 105, 106.

Pluteus (Plu'te-us), 138.
cervinus (cer-vi'nus), 138, 139, fig. 135.
tomentosulus (to-men-tos'u-lus), 140, fig. 136.

Polyporaceæ (Pol-y-po-ra'ce-æ), 171.

Polyporus (Po-lyp'o-rus), 171, 188--194.
applanatus (ap-pla-na'tus), 193, fig. 15.
borealis (bo-re-a'lis), 9, 10, figs. 9, 10.
brumalis (bru-ma'lis), 191, pl. 71, fig. 186.
fomentarius (fo-men-ta'rius), 194.
frondosus (fron-do'sus), 188, pls. 67, 68, figs. 181, 182.
igniarius (ig-ni-a'ri-us), 194.
intybaceus (in-ty-ba'ce-us), 184.
leucophæus (leu-co-phæ'us), 194.
lucidus (lu'ci-dus), 193, pl. 72, fig. 188.
sulphureus (sul-phu're-us), 190, pls. 69, 70, figs. 184, 185.
umbellatus (um-bel-la'tus), 189, fig. 183.

Polystictus (Pol-y-stic'tus), 191.
cinnabarinus (cin-na-ba-ri'nus), 192.
cinnamomeus (cin-na-mo'me-us), 192, fig. 187.
connatus (con-na'tus), 192.
hirsutus (hir-su'tus), 192.
oblectans (ob-lec'tans), 192.
perennis (pe-ren'nis), 192, fig. 187.
pergamenus (per-ga-me'nus), 105, 193.
splendens (splen'dens), 192.
versicolor (ver-sic'o-lor), 192.

Psalliota (Psal-li-o'ta), 18--26, 158.

Psathyrella (Psath-y-rel'la), 48.
disseminata (dis-sem-i-na'ta), 48, 49, fig. 49.

Psilocybe foenisecii (Psi-loc'y-be foe-ni-se'ci-i), 48.

Purple-brown-spored agarics, 18.

Rosy-spored agarics, 138.

Russula (Rus'su-la), 125.
adusta (ad-us'ta), 127, pl. 40.
alutacea (al-u-ta'ce-a), 125, 126, pl. 40.
emetica (e-met'i-ca), 127, pl. 40.
fragilis (frag'i-lis), 127.
furcata (fur-ca'ta), 127.
lepida (lep'i-da), 126, pl. 40.
nigricans (nig'ri-cans), 127.
virescens (vi-res'cens), 126, pl. 40.

Sarcoscypha floccosa (Sar-cos'cy-pha floc-co'sa), 221, 222, fig. 222.

Schizophyllum (Schiz-o-phyl'lum), 136.
alneum (al'ne-um), 136, 137, fig. 133.
commune (com-mu'ne), 136.

Scleroderma (Scler-o-der'ma), 212.
verrucosum (ver-ru-co'sum), 212.
vulgare (vul-ga're), 212.

Spathularia velutipes (Spath-u-la'ri-a ve-lu'ti-pes), 220, fig. 220.

Spinellus fusiger (Spi-nel'lus fu'si-ger) 95.
macrocarpus (mac-ro-car'pus), 95.

Sterium (Ste'ri-um), 208.

Strobilomyces (Strob-i-lom'y-ces), 184.
floccopus (floc'co-pus), 185.
strobilaceus (strob-i-la'ce-us), 184, pl. 64, figs. 177--179.

Stropharia (Stro-pha'ri-a), 31.
æruginosa (æ-ru-gi-no'sa), 32.
semiglobata (sem-i-glo-ba'ta), 31, fig. 30.
stercoraria (ster-co-ra'ri-a), 32.

Thelephoraceæ (Thel-e-pho-ra'ce-æ), 208.

Trametes (Tra-me'tes), 16, 193.
ambigua (am-big'u-a), 16, 17.

Trembling fungi, 204.

Tremellineæ (Trem-el-lin'e-æ), 204.

Tremella (Tre-mel'la), 204.
frondosa (fron-do'sa), 205, fig. 206.
fuciformis (fu-ci-for'mis), 206, fig. 207.
lutescens (lu-tes'cens), 205.
mycetophila (my-ce-toph'i-la), 204, fig. 205.

Tricholoma (Trich-o-lo'ma), 87.
peckii (peck'i-i), 85, 86.
personatum (per-so-na'tum), 87, figs. 87, 88.
sejunctum (se-junc'tum), 88, fig. 89.

Trogia (Tro'gi-a), 137.
crispa (cris'pa), 137, pl. 43, fig. 134.

Tubaria (Tu-ba'ri-a), 159.
pellucida (pel-lu'ci-da), 159, fig. 153.

Tube-bearing fungi, 171.

Verpa bohemica (Ver'pa bo-hem'i-ca), 219.

Volvaria (vol-va'ri-a), 140.
bombycina (bom-byc'i-na), 140, 141, fig. 137.
speciosa (spe-ci-o'sa), 141, 142.

White-spored agarics, 52.

INDEX TO SPECIES.

acicula (Mycena), 97.
acutesquamosa (Lepiota), 81.
adiposa (Pholiota), 151.
adusta (Russula), 127.
æruginosa (Stropharia), 32.
alneum (Schizophyllum), 136.
alutacea (Russula), 125.
ambigua (Dædalea), 16.
ambigua (Trametes), 16.
americana (Lepiota), 80.
americanus (Boletus), 178.
antipoda (Galera), 155.
applanatus (Crepidotus), 161.
applanatus (Polyporus), 193.
appendiculatum (Hypholoma), 27.
applicatus (Pleurotus), 109.
arvensis (Agaricus), 20.
asperula (Lepiota), 82.
asprella (Leptonia), 147.
atramentarius (Coprinus), 40.
atro-tomentosus (Paxillus), 169.
aurantia (Armillaria), 84.
aurantiacus (Cantharellus), 129.
aurivella (Pholiota), 152.

badhami (Lepiota), 81.
bispora (Morchella), 219.
bohemica (Verpa), 219.
bombycina (Volvaria), 140.
botrytes (Clavaria), 202.
brevipes (Boletus), 179.
brumalis (Polyporus), 191.
bulbosus (Boletus), 172.

cæsarea (Amanita), 70.
calolepis (Crepidotus), 161.
campestris (Agaricus), 18.
campanella (Omphalia), 101.
candida (Clitocybe), 89.
candolleanum (Hypholoma), 28.
cantharellus (Craterellus), 208.
caput-medusæ (Hydnum), 198.
caput-ursi (Hydnum), 197.
caudicinus (Polyporus), 190.
cerasina (Pholiota), 152.
cervinus (Pluteus), 138.
chelidonium (Lactarius), 124.
chimonophilus (Crepidotus), 160.
chromapes (Boletus), 176.
chrysodon (Hygrophorus), 111.
chrysorrheus (Lactarius), 122.
cibarius (Cantharellus), 128.
cinnabarinum (Calostoma), 212.
cinnabarinus (Polystictus), 192.
cinnamomeus (Cortinarius), 162.
cinnamomeus (Polystictus), 192.
coccinea (Sarcoscypha), 222.
coccineus (Hygrophorus), 112.
cohærens (Marasmius), 132.
cohærens (Mycena), 132.
collinitus (Cortinarius), 161.
comatus (Coprinus), 33.
commune (Schizophyllum), 136.
comtulus (Agaricus), 24.
conica (Morchella), 217.
conicus (Hygrophorus), 114.
connatus (Polystictus), 192.
coprinoides (Galera), 155.
coralloides (Hydnum), 196.
cornucopioides (Craterellus), 208.
corrugatus (Paxillus), 170.
corrugis (Lactarius), 116.
corticatus (Pleurotus), 106.
cothurnata (Amanita), 66.
cretaceus (Agaricus), 79.
crassipes (Morchella), 219.
crispa (Helvella), 219.
crispa (Trogia), 139.
cristata (Lepiota), 81.
crustuliniforme (Hebeloma), 158.
cyanothrix (Mycena), 98.
cyathiforme (Lycoperdon), 209.
cyathiformis (Clitocybe), 90.
cyathiformis (Panus), 135.

deliciosa (Morchella), 219.
deliciosus (Lactarius), 123.
diminutivus (Agaricus), 26.
disseminata (Psathyrella), 48.
dryinus (Pleurotus), 105.
dryophila (Collybia), 204.
duplicata (Dictyophora), 214.

eburneus (Hygrophorous), 111.
echinata (Inocybe), 158.
edulus (Boletus), 172.
emetica (Russula), 127.
epichysium (Omphalia), 101.
epipterygia (Mycena), 96.
erinaceus (Hydnum), 198.
esculenta (Gyromitra), 220.
esculenta (Morchella), 217.

farinosa (Amanitopsis), 76.
felleus (Boletus), 173.
fimicola (Panæolus), 48.
firma (Fistulina), 186.
flava (Galera), 155.
flavidus (Boletus), 178.
flavidus (Paxillus), 168.
floccocephala (Amanita), 62.
floccopus (Strobilomyces), 185.
floccosa (Sarcoscypha), 221.
foenisecii (Psilocybe), 48.
fomentarius (Polyporus), 194.
formosa (Clavaria), 201.
fragile (Hydnum), 200.
fragilis (Russula), 127.
frondosa (Tremella), 205.
frondosus (Polyporus), 188.
frostiana (Amanita), 54.
fuciformis (Tremella), 206.
fuligineus (Hygrophorus), 113.
fuliginosus (Lactarius), 118.
fulvotomentosus (Crepidotus), 161.
furcata (Russula), 127.
fusiger (Spinellus), 95.

galericulata (Mycena), 94.
gemmatum (Lycoperdon), 210.
gerardii (Lactarius), 119.
giganteum (Lycoperdon), 210.
glandulosa (Exidia), 206.
glutinosus (Gomphidius), 51.
granulatus (Boletus), 178.
graveolens (Hydnum), 200.
grayanum (Entoloma), 144.

hæmatopa (Mycena), 98.
hepatica (Fistulina), 186.
herbarum (Crepidotus), 160.
hirsutus (Polystictus), 192.
hypothejus (Hygrophorus), 114.

igniarius (Polyporus), 194.
illudens (Clitocybe), 90.
imbricatum (Hydnum), 198.
impudicus (Ithyphallus), 216.
incana (Leptonia), 147.
indigo (Lactarius), 125.
infundibuliformis (Clitocybe), 90.
intybaceus (Polyporus), 189.
involutus (Paxillus), 166.

johnsoniana (Pholiota), 153.
jubatum (Entoloma), 143.

laccata (Clitocybe), 89.
lachnophylla (Collybia), 132.
lachrymabundum (Hypholoma), 28.
lacrymans (Merulius), 194.
lacunosa (Helvella), 220.
lævis (Annularia), 78.
lateritia (Galera), 155.
lecomtei, (Lentinus), 135.
lepida (Russula), 126.
lepideus (Lentinus), 135.
lignyotus (Lactarius), 117.
livida (Amanitopsis), 75.
longipes (Collybia), 93.
lubrica (Leotia), 221.
lucidus (Polyporus), 193.
leucophæus (Polyporus), 194.
lutescens (Calostoma), 212.
lutescens (Mitremyces), 213.
lutescens (Tremella), 205.
luteus (Boletus), 181.

macrocarpus (Spinellus), 95.
mappa (Amanita), 58.
marginata (Pholiota), 151.
maritimus (Agaricus), 142.
merismoides (Phlebia), 195.
mellea (Armillaria), 83.
micaceus (Coprinus), 42.
miniatus (Hygrophorus), 113.
morgani (Lepiota), 80.
mucida (Clavaria), 203.
muscaria (Amanita), 52.
mycetophila (Tremella), 205.

naucina (Lepiota), 77.
nigricans (Gomphidius), 49.
nigricans (Russula), 127.
nivalis (Amanitopsis), 76.

oblectans (Polystictus), 192.
obsonium (Boletus), 177.
ochroleucus (Cortinarius), 163.
orcella (Clitopilus), 143.
oreades (Marasmius), 131.
ornatipes (Boletus), 174.
ostreatus (Pleurotus), 104.

pallida (Fistulina), 186.
pantherina (Amanita), 69.
panuoides (Paxillus), 170.
papilionaccus (Panæolus), 48.
paradoxa (Flammula), 168.
peckii (Tricholoma), 85.
pelletieri (Clitocybe), 168.
pellucida (Tubaria), 159.
perennis (Polystictus), 192.
pergamenus (Lactarius), 121.
pergamenus (Polystictus), 193.
perplexum (Hypholoma), 27.
personatum (Tricholoma), 87.
petaloides (Pleurotus), 107.
phalloides (Amanita), 55.
pictus (Boletinus), 183.
pinicola (Polyporus), 194.
piperatus (Lactarius), 120.
pistillaris (Clavaria), 203.
pistillaris (Craterellus), 203.
placomyces (Agaricus), 19.
platyphylla (Collybia), 93.
polita (Eccilia), 148.
polychroa (Flammula), 156.
polygramma (Mycena), 94.
polypyramis (Amanita), 74.
porosus (Boletinus), 184.
præcox, (Pholiota), 150.
prælonga (Mycena), 94.
pratensis (Hygrophorus), 113.
procera (Lepiota), 79.
prunulus (Clitopilus), 142.
psittacinus (Hygrophorus), 114.
punctipes (Boletus), 179.
pura (Mycena), 95.
putidum (Hydnum), 199.
pyriforme (Lycoperdon), 211.

rachodes (Lepiota), 79.
radicata (Collybia), 93.
ravenelii (Dictyophora), 215.
repanda (Inocybe), 257.
repandum (Entoloma), 143.
repandum (Hydnum), 198.
resimus (Lactarius), 121.
retirugis (Chalymotta), 48.
retirugis (Panæolus), 45.
rhodoxanthus (Flammula), 168.
rhodoxanthus (Gomphidius), 168.
rhodoxanthus (Paxillus), 167.
rodmani (Agaricus), 20.
rotula (Marasmius), 130.
rubescens (Amanita), 71.
rudis (Panus), 135.
rufus (Gyrocephalus), 207.
rugocephalum (Hypholoma), 30.

sapidus (Pleurotus), 104.
sapinea (Flammula), 157.
scaber (Boletus), 174.
sejunctum (Tricholoma), 88.
semiglobata (Stropharia), 31.
semilibera (Morchella), 219.
semiorbicularis (Naucoria), 153.
serotinus (Pleurotus), 109.
silvaticus (Agaricus), 21.
silvicola (Agaricus), 22.
solidipes (Panæolus), 48.
solitaria (Amanita), 72.
spadicea (Amanitopsis), 75.
speciosa (Volvaria), 141.
spinulifera (Collybia), 132.
splendens (Polystictus), 192.
spreta (Amanita), 69.
squarrosa (Pholiota), 152.
squarrosoides (Pholiota), 152.
stercoraria (Stropharia), 32.
stipticus (Lentinus), 135.
stipticus (Panus), 135.
strictius (Entoloma), 145.
strigosus (Panus), 135.
strobilaceus (Strobilomyces), 184.
strobiliformis (Amanita), 73.
sublateritium (Hypholoma), 26.
subluteus (Boletus), 181.
subrufescens (Agaricus), 23.
subsquarrosa (Pholiota), 152.
subtomentosus (Boletus), 167.
succosa (Mycena), 100.
sulphureus (Polyporus), 190.
sulfureoides (Pleurotus), 107.

tammii (Flammula), 179.
tenera (Galera), 155.
tomentosulus (Pluteus), 140.
tomninosus (Lactarius), 119.
tremellosus (Merulius), 194.

ulmarius (Pleurotus), 102.
umbellatus (Polyporus), 189.
unicolor (Pholiota), 151.

vaginata (Amanitopsis), 74.
variicolor (Bolbitius), 164.
velutinum (Hydnum), 200.
velatipes (Amanita), 63.
velutipes (Collybia), 92.
velutipes (Spathularia), 220.
vermiculosus (Boletus), 177.
verna (Amanita), 60.
vernalis (Naucoria), 154.
verrucosum (Scleroderma), 212.
versicolor (Polystictus), 192.
versutus (Crepidotus), 160.
violacens (Cortinarius), 161.
virescens (Russula), 126.
virosa (Amanita), 61.
volemus (Lactarius), 115.
volvata (Amanitopsis), 76.
vulgare (Scleroderma), 212.
vulgaris (Mycena), 97.
vulpinus (Lentinus), 134.

* * * * * *

Transcriber's Notes:

Page 17 [A] For analytical keys to the families and genera see Chapter XXII. Changed Chapter XXII to XXIV. Apparently Chapters were added making these references outdated.

Page 18 [B] For analytical key to the genera see Chapter XXII. Changed Chapter XXII to XXIV.

Page 32 The spores are black in mass, not purple tinged. For analytical keys to the genera see Chapter XXII. Changed XXII to XXIV.

Page 33 Changed kornos to kopros in accordance with printed correction list.

Page 52 The spores are white in mass, or sometimes with a faint yellowish or lilac tinge. For analytical keys to the genera see Chapter XXII. Changed XXII to XXIV.

Page 54 Figures 52--54 are from plants (No. 2065 C. U. herbarium) collected in an open woods near Ithaca. For the poisonous property of the plant see