LEUCOSPOR^E 
171 
M. rotula (yota, a wheel—from the resemblance of the 
pileus to a little wheel when viewed from below), “ Little 
Wheel.” Plate XXXV. 8. 
It is a small species'with shining black stem, common on 
fallen twigs, and is abundantly distinct in having the broad 
distant gills joined behind to a collar which is quite free 
from the stem. It is entirely whitish, with plicate pileus. 
There is usually a cord-like mycelium present. 
M. graminum ( gramen , grass—from the habitat) is also 
provided with a collar, but may be distinguished by the 
pale-red sulcate pileus, and in growing on grass. Un¬ 
common. 
M. Hudsoni (after William Hudson, author of “ Flora 
Anglica ”). Plate X. 7. 
P. very minute, only 1-2 lines across, very thin, brownish, 
covered with long spreading purplish hairs. G. adnexed, 
white. S. i-i in., slender, colour of the pileus, and, like it, 
adorned with long purplish hairs. On fallen holly leaves 
sum. and ant. Frequent in England, rare in .Scotland. 
M. epiphyllus (Or. epi , upon ; phnllon , a leaf—from the 
habitat). Plate X. 6. 
P. up to J in., plane, then umbilicate, wrinkled, very 
thin, milk-white. G. adnate, few, veined, white. S. 1-2 in., 
very slender, horny, brown or blackish, apex pale, minutely 
velvety. A common autumnal species. Gregarious on 
fallen leaves, twigs, etc. 
TRICHOLOMA 
(Gr. tlirix , a hair ; Ionia , a fringe—from the hairy or silky 
covering of the pileus, well seen in young specimens) 
The chief characteristics of this genus are the sinuate 
gills and the symmetrical,' never truly umbilicate, pileus. 
Collybia differs in the externally cartilaginous, not fibrous, 
stem. In Clitocybe the gills are never sinuate, but gradually 
