CLASSIFICATION OF ACAKK'S _»C,1 



remarks thai the edge is "nigro-punctate." Peck (N. Y. State Mus. 

 Bull. L50, p. 81, l'.M l i has given I under //. lachrymabundum | spore 

 measurements which are misleading; and the real of the description 



;i|>|il ieS to c\ i i cine forms. 



249. Hypholoma populinum Hi it/, var. 

 Hot. Centralbl., Vol. 77. p. 102, L899. 



PILEUS 1-2.5 tin. broad, convex to subcampanulate, obtuse, al 

 Length expanded, innately pilose-scaly, qoI striate, bygrophanous, 

 grayish-buff, scales umber-brown to purplish-brown, fading i<> pale 

 grayish-white, margin appendiculate a1 first from the veil. FLESH 

 concolor, rather thin. GILLS adnate-seceding, rounded behind, 

 moderately broad, dose, thin, ;it firsl whitish, soon drab, then dark 

 purplish-brown, edge white-fimbriate. STEM 2-4 cm. long, L.5-2 

 mm. thick, equal, white, dotted with ius<-<>us, -fibrillose scales, stuffed 

 then hollow, shining when dry. base submycelioid. VEIL mem- 

 bran aceus, white, soon disappearing. SPORES variously shaped, 

 subtriangular, inequilateral-elliptical, subangular, etc.. sometimes 

 curved, 6-7.5x4.5 micr., dark purple-brown. ( 'YSTI dia clavate 

 to obclavate, or subventricose, stalked, not abundant, 5040x15-18 

 micr. < >l>( >K none. 



On very rotten wood, scattered ; in frondose low woods or swamps. 

 Ann Arbor, May-June ami September. Infrequent. 



Characterized by the peculiarly shaped spores, which are often the 

 shape of corn kernels, or are elliptical, curved or very irregular. 

 Britzelmayrs species is much larger, the cap measuring 7 cm. across ; 

 his spores also are a little larger. It is probably a distinct species. 



250. Hypholoma vinosum sp. now 



PILEUS 5-20 nun. broad, fragile, convex, then companulate, sub- 

 umbonate, pulverulent- floccose, velvety in appearance, umber-color- 

 ed, obscurely tinged with purple, darker in center, dry. even, obscure- 

 ly rugulose, margin appendiculate a1 firsl by pale fragments of the 

 veil. FLESB thin, dingy-white, fragile. GILLS adnate, seceding, 

 crowded, rounded behind, ventricose and rather broad, h>i<ilit 

 vinaceou8-umber (Sacc.) finally dark amber, edge entire. STEM 

 24 cm. long, 1-l' mm. thick, equal, except enlarged base, straight, 

 slender, hollow, vinaceous-umber, color persisting, pulverulenl like 

 pilens. with a slight purplish juice when broken in the fresh con* 

 dition. SPORES minute, 5-6x2.5-3 micr.. oblong, smooth. ob1 



