'I' ,
Simple.
Gills sinuate ^
Gills decurrent .............................................. ® T richoloma.
s 1=*™-
Gills adnate. Lepista.)
“ .................................... 51 Nvcxaus.
K ï l k ÿ . ................................................. Lactarius.
WgM and brittle................................ R ussvla.
Stem lateral or absent..................... '•............................. H y g r o p h o r u s .
Stem with cartilaginous bark. P l e u r o t u s .
S S S* :" -':;;::;;:::;:;:;:::;;:::::::;:: * S S J " -
B. Plant T^h^l^^reeTuVEr'woody.............................. Omphalia.
Stem central.
G m ^ S i L d ; : : : : : ................................................
Stem lateral or absent. X e r o t u s .
Gills toothed t
Gills not toothed '.'E'',''.', el
Gills channelled longitudinally or crisped... 56 Teogia
II. Spores rosy or salmon-colour.
A. Stem without cartilaginous bark.
Hymenophore distinct from the fleshy stem.
btem volvate.......
Stem annulate ....... Volvaria.
Stem s im p l e ................... '3 A n n u l a r ia .
Hymenophore confluent and homogeneous'with the
fleshy stem.
Stem central.
Gills adnate or sinuate........
Gills d e cu r r en t ^ E ntoloma.
Stem lateral or absent. ........................................... I® C l i t o p i l u s .
B. Stem with cartilaginous bark. .............................. Cl a u do pu s .
Gills decurrent . ... t-
Gills not deciirrent. ® EcciLIA.
Pileus scaly , _ t _
Pileus papillose, subcampaniilate. ............................. ptonia.
18 N o l a n e a .
Gills subdeliquescent .......................................... 43 fiO L Bm u s.
I l l Spores brown, reddish- or yellowish-brown.
Stem without cartilaginous bark.
Stem central.
Stem annulate.
Annulus membranous.
Terrestrial............... ...___
Growing on wood ..'E.EE E.. . .'EEEE 24 Phoi mxE
arachnoid, filamentous or evanescent.
Gills adnate, terrestrial ............................... . . rnu-rT„-.„,T,o
Gills decurrent or adnate, growing on wood... 27 Flammula.
Stem simple.
With a volva 21 A c e t a b u l a r i a .
Without a volva.
Gills adhering to the hymenophore and
sinuate.
Cuticle fibrillose or silky................................ 25 I n o c v b e .
Cuticle smooth, viscid.................................... 26 H e b e l o m a .
Gills separating from the hymenophore and
decurrent, stem sometimes obsolete , 46 P a x i l l u s .
(Group 2. Tapinia.)
Gills decurrent..................................................... 3° T uEA R IA.
Gills not decurrent.
Margin of pileus at first incurved 28 N a u c o r i a .
Margin of pileus always straight.
Hymenophore free from the stem 23 P l u t e o l u s .
Hymenophore confluent with the stem... 29 G a l e r a .
Stem lateral or absent..................................................... 3> C r e p i d o t u s .
IV. Spores purple, brownish-purple, dark purple, or dark
brown.
A. Stem without cartilaginous bark.
Hymenophore distinct from the fleshy stem.
Stem volvate.................................................................. 32 C h i t o n i a .
Stem without a volva.
Stem annulate ......................................................... 33 P s a l l i o t a .
Stem simple ............... 34 P i l o s a c e .
Hymenophore confluent with the stem.
Veil normally ring-like on the stem ...................... 35 S t r o p h a r i a .
Veil normally fibrillose and adhering to the
margin of the pileus............................................. 3^ H y p h o l o m a .
B. Stem with cartilaginous bark.
Margin of pileus at first incurved ........................... 37 PsiLOCYBE.
Margin of pileus at first straight ........................... 38 PsATHYRA.
V. Spores black or nearly so.
Gills deliquescent.................................................................. 42 CoPR INUS .
Gills not deliquescent.
Gills decurrent 1....................................................... 45 G o m p h i d i u s .
Gills not decurrent.
Stem annulate ............................................................. 39 A n e l l a r i a .
Stem simple ................................................................. 4° P a n z e o l u s .
Pileus striate.................................................................. 41 P s a t h y r e l l a .
Genera 1-41 represent the genus Agaricus as understood by
Fries who regarded the modern genera as of subgeneric rank only.
They include species 1-920, and are arranged in five series defined
by the colour of the spores as illustrated in the five diagrams
(Plates I.-V.).
The genera which are marked in corresponding positions on the
different diagrams are structurally identical; the only difference is
in the colour of the spores. For instance, Amanitopsis, on the first
diagram, has white spores; it corresponds in structure with Volvaria,
with pink spores, on the second diagram, with Acetabularia, with
brown spores, on the third, and with Chitonia, with purple spores, on
the fourth. There is no genus structurally identical with Amanitopsis