84 Twenty-third Report on the State Cabinet. 



witli a dark reddish tinge ; lamellse uncinate, decnrrent 

 toothed, white, tinged with pink, the edge dark vinous -red ; 

 stipe very slender, paler than the pileus, villous at the base, 

 containing a reddish juice. 



Height 1-1.5', breadth of pileus 8"-4". 



At the mossy base of trees. Greenbush. June. 



All my specimens have the pileus umbonate, and were 

 csespitose, in which particulars they do not agree with pub- 

 lished descriptions ; still, I am unwilling to make a new 

 species on such slight differences. 



50. Agaeicus Corticola 8c?ium. 



Pileus hemispherical or convex, subumbilicate, striate, 

 brown, sometimes with a purplish tint, and sometimes having 

 a grayish mealy appearance ; lamellae few, distant, subdecur- 

 rent, and broadly attached to the stipe ; stipe short, curved, 

 stuffed or hollow, subconcolorous. 



About 6" high, pileus 2"- 3" broad. 



Among moss and lichens, on trunks of elm trees. Albany. 

 September. 



Subgenus — Omphalia. 

 Stem cartilaginous. Gills truly decurrent. — Berk. Outl. 

 The species of this subgenus are closely related to those of 

 the preceding one, from which they differ chiefly in the decur- 

 rent lamellae, which, though sometimes arcuate, are scarcely 

 uncinate. The pileus is often umbilicate. 



Synopsis of the Species. 



Pileus, or stem, minutely scaly a. 



a. Pileus not yellow 51. 



a. Pileus yellow ; stem smooth h2. 



a. Pileus yellow ; stem scaly .>'?. 



Pileus smooth b. 



b. Stem pale yellow, short .>4. 



b. Stem brown 55. 



b. Stem orange, very long 56. 



61. Agaeicus Oculus n. sp. 



Pileus thin, convex, umbilicate, generally with a small umbo 

 or papilla in the umbilicus, minutely squamulose, dingy white, 

 the umbilicus blackish -brown ; lamellfe white, narrow, close, 

 subarcuate ; ^ii\)e whitish, minutely squamulose or furfur- 

 aceous, hollow, often curved, easily splitting. 



Height l'-2', breadth of pileus 6"-12", stipe 1" thick. 



