PLEUROTUS. 381 



Pleurotus cyphellaeformis. Berk. 



Pileus up tu I in. bioad and liigli, rather fleshy, sessile, 

 ciip-sliaped, more or less pendulous, upper layer gelatinous, 

 grey, margin paler, sprinkled with a few meal-like scales, 

 very minutely downy, especially at the base ; gills narrow, 

 distant, pure white. 



Agaricus (Pleurotus) cyphellaeformh, Berlc, Mag. Zool. and 

 Bot., i. t. 15, f. 3; Cke., Hdbk., p. 110; Cke., Illustr., pi. 

 244b. 



On dead stems of herbaceous plants. 



Gregarius ; resembling a Cypliella in habit. 



Pleurotus applicatus. Batsch. 



Up to \ in, across, cup-shaped and orbicular when young, 

 usually sessile and fixed by the downy base, rarely fur- 

 nished with a xQvy short, rudimentary stem; gills radi- 

 ating from a central point; when adult more or less re- 

 flexed, but never truly dimidiate, slightly j^i'uinose when 

 3^oung, glabrous or downy, minutely striate when moist ; 

 colour variable blackish-blue, dark or ashy-grey ; gills 

 scanty, rather thick, broad, distant, paler than the pileus, 

 and margin usually whitish. 



Agartcus ai?plicatus, Batsch, f. 125; Cke., Hdbk., p. Ill ; 

 Cke., Illustr., pi. 224c. 



On rotten wood. 



Distinguished among the minute species by its dingy 

 colour. Somewhat resemblinir P. tremulus, but known bv 

 the absence of a distinct stem. 



Pileus 2-4 lines broad, when young cup-shaped, resupinate, 

 slightly fleshy, striate when moist, more or less villous. 

 Gills broad distant radiating, grey, the margin whitish. 

 Stem none. (Berk.) 



*** Pileus membranaceous, not viscid. 



Pleurotus Hobsoni. Berk. 

 Pileus 2-i lines across, thin and delicate, reniform or 

 semicircular, horizontal, plane, pale grey, minutely downy ; 

 gills rather distant, radiating from the point of attachment 

 of the pileus, pallid. 



