sometimes very misleading. The numerals represent the diameter
ot the pileus, the height from the base of the stem to the top of the
pileus, and the diameter of the stem near the middle. The stem in
most of the stem-bearing Basidiomycetes is cylindrical or slightly
attenuated upwards; this character is not reiterated in the descriptions,
where departures from the type only are given. In stemless
species, which are generally excentric, the longer diameter of the
pileus IS given.
The notes as to taste and odour are generally original, supplemented
by the observations of others; those as to colour have in
most instances been drawn up from living examples, supplemented
by printed descriptions and by reference to characteristic coloured
drawings and plates.
The habitats and dates of appearance are from my own notes
and trom observations of other British botanists; in a few instances
no habitat or date is on record.
Spore measurements have been omitted as untrustworthy in
many cases authors have measured immature spores from young
plants, in others it is certain that authors have misnamed the fungus
rrom which the spores have been taken.
The following abbreviations are employed ; —
HYMENOMYCETES.
A.
Br.
Cl.
Co.
G.
Gr.
Hym.
H.
Myc.
P.
Annulus.
Bristles.
Clubs.
Pa.
Pi.
Papillie.
Pileoli.
Cortina. Po. Pores.
Gills. Sci. Sclerotium.
Granules,
Se.
Hymenium.
Setae.
Hymenophore.
Sp.
Spines.
Mycelium.
St.
Stem.
Pileus. Sub. Subiculum.
circ. circumference T. T ubes.
gr. granules Te. Teeth.
marg. margin
mid. middle Tub. Tubercles.
sc. scales V. Veil.
sq. squamules Ve. Veins.
um. umbo Vo. Volva.
z. zones. Z. Zone.
The stem is supposed to be cylindrical or nearly so unless otherwise described
and simple if without volva and annulus.
GASTEROMYCETES.
Cap. Capillitium.
Col. Columella.
Cor. Cortex,
End. Endoperidium.
Ex. ■ Exoperidium. Per.
Fun. Funiculus. Peri.
Gl. Gleba. Ree.
Pe. Peridium. Vo.
Ped. Pedicel.
O r d e r I. H YM E NOM Y C E T E S
Basidia and spores exposed in the mature plant (fig. 8).
Families I-VI.
Volv
Fig. 8.—Basidia and spores of M ushroom {Psalliota campestris Quél.).
B, basid ia; s p , spores ; c , cystidia or barren basidia ;
S T , sterigmata; h . c , hymenial cells. X l o o o .
I. A g a r i c a c e iE . Hymenium spread over the surface of radiating
gills or lamellte. Genera 1-58
II. P 0 L Y P O R A C E .E . Hymenium lining the surface of small pores
or tubes. Genera 59-69
III. H y d n a c e .®. Hymenium spread over spines or protuberances.
Genera 70-79
IV. T h e l e p h o r a c e a ;. Hymenium unilateral, spread over a firm
smooth or corrugate under or upper face. Genera 80-90
V. C l a v a r ia c e .®. Hymenium spread over the surface of smooth,
simple or branched clubs ; in Sparassis over a large spongelike
mass of coalescing branches. Genera 91-96
VI. T r e m e l l i n a c E iE . Hymenium spread over a smooth gelatinous
surface. Genera 97-106