Annual Report of the State Botanist. 19 



like the pileus; spores elliptical, .0002 to .00025 in. long, .00012 to 

 .00016 broad. 



Pileus 6 to 12 lines broad; stem 1 to 2 in. long, about 1 line thick. 



Mossy gTOund in woods. North Elba. Sept. 



I have separated this form G. ditopoda because of the striate margin 

 of the pileus, paler lamellae and longer elliptical spores. 



CoUybia butyracea, Bull. 

 Common in groves of spruce and balsam trees. North Elba. Sept. 



CoUybia acervata, Fr. 



"Woods. North Elba. Sept. C. sinuUima Pk. is doubtless a mere 



form of this species. 0. spinulifer Pk., differs in the spinules of the 



lamellae. 



CoUybia ignobilis, Karst 



Mossy ground in balsam groves. North Elba. Sept. 



Omphalia striaepileus, Fr. 



Groves of spruce and balsam. North Elba. Sept. 

 The specimens differ from the description of the species only in 

 color. They are dingy whitish when moist, white when dry. 



Omphalia tubaeformis, n. sp. 



Pileus submembranous, glabrous, deeply umbilicate, grayish, the 

 margin decurved or spreading, lamellae distant, deeply decurrent, 

 white, sometimes branched, with venose interspaces; stem short, equal 

 or tapering downward, hollow, subpruinose, blackish-brown toward 

 the base; spores elliptical, .0002 in, long. 



Pileus 8 to 12 lines broad; stem 6 to 10 lines long. 



Dead bark of willow. Menauds. June. 



Pleurotus mitis, Pers. 

 Prostrate trunks of balsam, Abies balsamea. North Elba. Sept. 



Hebeloma firmum, Pers. 

 Woods. North Elba. Sept. 



Naucoria scirpicola, n. sp. 



[PJate 2. Figs. 6-10.] 



Pileus membranous, at first hemispherical and tomentose, then 



convex or nearly plane, glabrous or adorned with a few floccose, 



superficial scales, widely striate on the margin, tawny or subochra- 



ceous, subatomate when dry; lamellae subdistant, slightly adnexed, 



