778 THE AGARICACEAE OP MICHIGAN 



broad, distant;, thick, sometimes intervenose, white, edge pruinose. 

 STEM 2-5 em. long, about 2 mm. thick, firm, tough, solid, equal, in- 

 stititious, floccose-scaly or furfuraceous, sulphur or pallid-yellow. 

 SPORES broadly-oval, or subglobose, granular-punctate, S-10 x 6-7 

 micr. STERILE CELLS on edge of gills, subcylindrical, rounded- 

 subcapitate, about 45-50x0 micr. 



Solitary or scattered. On fallen branches and decaying wood, 

 in mixed woods of coniferous regions. Marquette, Bay View, 

 New Richmond. August-September. 



The attractive color, the tough texture, furfuraceous to floccose 

 covering of cap and stem distinguish this species easily from all 

 other Collybias. The plant has occasionally been wrongly iden- 

 tified as Lcntinus chrysopeplos B. & C. Its texture is doubtless 

 very similar to Lentinus and Panus, but it lacks the arid gills of 

 those genera. The description of Omphalia scabrwscula Pk. also 

 fits our plant rather closely, but if it were that species it would 

 be far removed from Omphalia umbellifera to which Peck at- 

 tached 0. scabriuscula as a variety. The gills have a tendency 

 to become decurrent, and if referred to the genus Omphalia the 

 plant would become 0. lacunosa. -In many respects it is an anomal- 

 ous mushroom, half-way between Omphalia, Collybia and Panus. 



Mycena Fr. 

 (From the Greek, myites, a fungus.) 



White spored. Stem cartilaginous, slender, hollow. Pileus thin, 

 conic or sub-cylindrical at first, then campanulate, margin at first 

 straight and applied to stem. Gills adnexed or adnate, not decur- 

 rent, sometimes uncinate. 



Epiphytal, lignicolous or terrestrial, putrescent, small or minute 

 plants; separated from Collybia by the unexpanded, bell-shaped 

 pileus; from Omphalia by the non-decurrent gills; and from Maras- 

 mius by their non-reviving consistency. The genus is a large one. 

 Many species are probably edible, but because' of their small size 

 most of them yield very little substance. Peck (X. Y. State Mus. 

 Bull. L67, 1913) reports M. splendidipes Pk. as poisonous. They 

 correspond to Nolanea of the pink-spored group, and Galera of the 

 ochre-spored group. The genus is of great interest scientifically. 



The PILEUS is either conical at first, or parabolic-cylindrical, or 

 ovale. On opening it usually remains campanulate, except in a com- 

 paratively small number of species in which it often develops a mark- 



