REPORT OF THE STATE BOTANIST I9II 85 



Clitocybe subconcava I'k. 



SUBCONCAVE CLITOCYBE 

 X. Y. State Mus. Bui. 54, p.948, pl.K, fig.8-13 



Pileus thin, convex, deeply umbilicate, glabrous, hygrophanous. 

 brownish or reddish brown and usually striatulate on the decurved 

 margin when moist, whitish when dry; lamellae arcuate, decurrent, 

 close, pallid or subcinereous ; stem equal, firm, solid or stuffed, some- 

 times with a small cavity, slightly fibrillose, colored like the pileus ; 

 spores ellipsoid, 5-6 x 3-4 /*. 



Pileus 2.5-5 cm broad; stem 2.5-5 cni l° n g'. 3~ 4 mm thick. 



Pine woods. Warren co. August. Rare. Found but or c. 



Related to Clitocybe con cava (Scop.) Fr. from which it 

 may be separated by its paler lamellae and smaller spores. 



Clitocybe brumalis Fr. 



W I X TRY CLITOCYBE 

 Sylloge V, p. 1 80 



Pileus at first convex or expanded and umbilicate, then infundi- 

 buliform, glabrous, hygrophanous, livid when moist, whitish or 

 yellowish when dry, often darker in the center, sometimes wavy or 

 lobed on the margin, flesh thin ; lamellae arcuate at first, narrow, 

 close, decurrent, distinct, pallid or yellowish white ; stem nearly 

 equal, often slightly curved, stuffed or hollow, glabrous, whitish, 

 sometimes downy at the base ; spores 4-5 x 3-4 /x. 



Pileus 2.5-5 cm - broad ; stem 2-5 cm long, 2-4 mm thick. 



Woods. Catskill and Adirondack mountains. September and 

 October. Rare. 



Our specimens were collected in the months mentioned, but the 

 specific name indicates that it may also occur later in the season. 



Orbiformes 



Pileus hygrophanous, somewhat fleshy, convex or plane, umbili- 

 cate or centrally depressed, glabrous ; lamellae thin, close, adnate or 

 having a decurrent tooth. 



The species of this section may be separated from those of the 

 preceding by the more spreading decurved margin of the pileus, 

 which is therefore more orbicular. They may be divided into three 

 croups according to the color of the lamellae. They are mostly small 

 and scarce. 



