LEUCOSPOR.E 
161 
R. Queletii (after Dr. Lucien Quelet) is much like R. dri- 
nieia in stature and colour of pileus, but may be at once 
known by the persistently white gills. 
R. sanguinea, sometimes met with in fir woods, differs 
from all other species of Russula in the truly decurrent 
gills. It bears some superficial resemblance to R. rubra. 
R. rosacea, a frequent autumnal species in woods and 
grassy places, may be distinguished from other species with 
red or rosy pileus and rosy stem, by the thick, cheesy- 
white flesh, and persistently white, adnate, broad, crowded 
gills. The flesh is mild at first, slowly becoming acrid ; the 
gills are usually acrid from the first. 
MYCENA 
(Gr. makes, a fungus) 
A large genus of mostly small species, with long, slender, 
hollow stems. The margin of the pileus is always straight 
(a feature which separates it from Collybia), and is more or 
less striate. The gills are adnate or adnexed, never truly 
decurrent (a feature which separates it from Omphalia and 
Clitocybe). The majority grow on wood, appearing after 
storms in summer and autumn. A few common species 
continue under favourable conditions till Dec. Some 
contain a coloured milk. They are classified in nine sec¬ 
tions, based upon the peculiarities of the stem. 
Section I.—Insititiae 
Stem very slender, dry, neither rooting nor downy, issuing abruptly 
from the matrix. 
Section II.—Basipedes 
Stem dry, not rooting, with a bulbous or swollen hairy base. 
Usually solitary. 
Section III.—Glutinipedes 
Stem distinctly glutinous. 
Section IV.—Lactipedes 
Stem dry. Whole plant giving out milk or juice when broken. 
