378 rUKGU.S-FLOEA. 



lateral, very short or almost obsolete, rather coarsely downy 

 at the base ; gills determinate, narrow, crowded, simple, 

 greyish. 



Agaricus (Pleurotm) acerosus, Fries, Syst. Myc, i. p. 191 ; 

 €ke., Hdbk., p. 108 ; Cke., Illustr., pi. 242c. 



On wood, among leaves, on gravel, &c. 



Very variable, flaccid, greyish-brown, becoming pale, re- 

 sembling Cantharellus lohatus in appearance. Attached by 

 spreading white mycelium when growing on Sphagnum in 

 swamps. (Fries.) 



III. EESUPINATI. 

 * Pileus fleshy, uniform in texture. 



Pleurotus porrigens. Pers. 



Entirely white. Pilens 2-3 in. long, and about 1-J- in. 

 broad ; flesh thin, tough ; sessile, at first resupinate then 

 ascending or horizontal, expanded from the base and be- 

 ■coming ear-shaped, fan-shaped, or almost circular, glabrous, 

 more or less downy towards the base ; gills radiating, very 

 narrow, rather crowded. 



Agaricus (^Pleurotus) porrigens, Cke., Hdbk., p. 109 ; Cke., 

 Illustr., pi. 259a. 



Agaricus porrigens, Persoon, Obs. Myc, i. p. 54. 



On old pine trunks. 



Usually imbricated. Eesembling P. petaloides in habit, 

 but differing in colour, and in the absence of a narrowed 

 stem-like base. 



Pleurotus septicus. Fr. 



Pileus up to i- in. across, flesh rather thick ; downy, resu- 

 pinate at first and closely applied to the wood on which it 

 grows, furnished with a minute, downy stem 1-2 lines long, 

 which soon disappears, leaving the pileus reflexed, and 

 apparently sessile, shining white; gills radiating from the 

 point of attachment of the stem, rather distant and broad, 

 -white ; spores broadly elliptical with an oblique basal 

 apiculus, 8-10 and 6 /x,. 



Pleurotus sepiicus. Fries, Syst. Myc, i. p. 192 ; Cke., Hdbk., 

 p. 109; Cke, Illustr., pi. 259. 



