NOTES ON FUNGI, VI 



BY HOMER D. HOUSE 



Mycena filopes (Bull.) Quelet 

 (Champ. Jura Vosg. 12. 1872) 

 Figure i 

 Agaricus filopes Bull. Herb. Fr., pi. 320. 1786. 



Plants gregarious, 8-1 1 c. high; pileus 8-15 mm broad, 6-10 mm 

 high, campanulate, not fully expanded, sometimes subumbonate 

 when young, in color varying from very dark bister to almost 

 blackish with the narrow lighter colored margin often nearly white, 

 dark gray with age with a darker center, rarely with a whitish round 

 spot in the center and the margin pale gray, sometimes the entire 

 pileus with a dull yellowish tint in addition to the colors already 

 noted, striate, thin; stems 1-2 mm thick, straight or fiexuose, 

 concolorous, darker toward the base, white above, fistulose, radicat- 

 ing and strigose hairy toward the base and very minutely pruinose 

 at the apex; lamellae adnate, uncinate, subdistant, interveined, 

 subventricose, white, sometimes with a pink reflection, edge even 

 or slightly eroded; cystidia none on the sides of the lamellae or 

 very rare, edge of the lamellae with stout, c'avate sterile cells (or 

 cystidia) with nimierous short, blunt projections on the ends, 35-45 x 

 10-12 ,u; basidia two-spored; spores subeUiptical, curved and 

 pointed at the base, smooth or granular, 6-1 1 x 3.5-4.5 //. 



On decayed bits of wood and leaves under trees of P i n u s 

 r i g i d a . Karner, Albany county. H. D. House and G. F, 

 Atkinson, November i, 19 18. (Herbarium N. Y. State Museum 

 and Herbarium Atkinson, no. 24409.) The identification of this 

 with the common European species was made by Professor Atkinson, 

 only after a most careful comparison w4th authentic European 

 material. In the nomenclature of the North American flora, this 

 would be designated as PrunuUus filopes (Bull.) House, 

 comb. nov. 



Mycena atkinsoni sp. nov. 



Figure 2 



Plants gregarious, ow, subcaespitose, 5-7 cm high; pileus 1-2.5 

 cm broad, stems 2-3 mm thick and stout. Pileus campanulate- 

 expanded. subumbonate, smoky to avellaneous, distinctly depressed 



[3] 



