118 FUNGUS-FLORA. 



Mycena pelianthina. Bolton. 



Pileus about 1 in. across, flesh, ratlier thick at the disc, 

 thin elsewhere ; convex then exparided, obtuse, moist, hygro- 

 phanoii.';, margin striate, pale livid-pnrple, becoming pale 

 Tvhen dry ; gills arlnexed, broad, distinctly connected by 

 ■veins, purplish, with a darker, fimbriated edge ; stem 2—3 in. 

 long 1^ line thick, equal, firm, fibrillosely-striate above^ 

 pallid, base more or less downy, hollow; spores elliptical, 

 7 X 4 /x. 



Agaricus (Mycena^ peUanthinus, Fries, Syst. Myc, p. 112; 

 Cke., Hdbk., p. 75; Cke., Illu«tr., pi. 156, f. 1. 



Agaricus denticulatus, Bolton, t. 4, f. 1. 



Among dead leaves in woods. 



Sometimes gregarious. Knowrn. by the purplish pileus and 

 gills. 



Pileus 1-2 in. broad, w^hen dry whitish, tinged with 

 purple; stem 2-3 in. high, l|-2 lines thick; the gills are 

 Si^rinkled over wdth short purple hairs, arranged in fascicles 

 on the edge ; smell strong, (Berk.) 



COLLYBIA. Fries. 



Pileus symmetrical, flesh usually thin, margin incurved 

 at first, not coarsely striate nor corrugated ; gills free or 

 adnexed and rounded behind, membranaceous, soft; sten^ 

 with a cartilaginous cortex, internally cartilaginous or soft^ 

 fistulose, often rooting ; spores white, smooth, 



Collybia, Fries, Epicr., p. 81 ; Cke., Hdbk., p. 62 (as a 

 subgenus of Agaricus). 



Growing on wood, leaves, and on decaying fungi, also ori 

 the ground, and then often rooting. 



Most closely allied to Marasmius, which, however, differs in 

 th.e dry, somewhat coriaceous, toufjh substance of the w^hole 

 fungus, somewhat persistent, ^nd fully expanding when 

 moistened after being dried. Clitocijhe and Triclioloma differ 

 in the stem being fibrous externally, and Mycena in having- 

 the margin of the pileus straight, and not incurved when 

 young. 



