380 FUNGUS-FLOEA. 



Pleurotus Leightoni. Berk. 



Pileus about ^ in. across, flesh rather thicb, at first ob- 

 liquely conical, umber then lead-colour, scurfy with short 

 black brisHes intermixed ; upper layer gelatinous ; gills ra- 

 diating from the point of attachment of the pileus, rather 

 thick, distant, tan-colour, somewhat forked at the base, 

 rather wavy. 



Agaricus (^Pleurotus) Leiglifoni, Berk., Ann. Nat. Hist., vol. 

 xiii., t. 9, f. 1 ; Cke., Illustr., pi. 260a ; Cko., Hdbk., p. 109. 



On wood. 



Pileus 5 lines broad, at first cyphellaeform, obliquely coni- 

 cal, umber-brown, gradually becoming paler, at length of a 

 pallid lead-colour, furfuraoeous, especially behind, where 

 there are a few bristles; flesh consisting of two distinct 

 strata, of which the upper is gelatinous, and of the colour of 

 the pileus, the lower white. Stem none. Gills of a pallid 

 tan-colour, thickish, distant, undulated, obscurely wrinkled 

 at the base, but the interstices can scarcely be said to be 

 reticulated. (Berk.) 



Pleurotus al^idus. Fr. 



Pileus about 1 in. across, rather fleshy, at first resupi- 

 nate, then expanded and horizontal, reniform, covered with 

 a thin viscid pellicle, glabrous, reddish brown; gills radi- 

 ating from the point of attachment of the pileus, rather 

 broad, crowded, yellov/ish. 



Agaricus (Tleurotus) algidus, Fries, Syst. Myc, i. p. 190 ; 

 Cke., Hdbk., p. 110; Cke., Illusfr., pi. 260r. 



On trunks. 



Pileus grey, umber, or reddish-brown ; often pruinose 

 when young. Usually caespitose and imbricated. 



Pleurotus fluxilis. Fr. 



Pileus up to ?f in. across, rather fleshy ; sessile, reniform 

 and very slightly depressed behind, even, pale umber, ge- 

 latinously viscid ; gills diverging from the point of attach- 

 ment of the pileus, distant, few, white, simple. 



Agaricus {Pleurotus) fluxilis, Fries, Syst. Myc, i. p. 189 ; 

 Cke., Hdbk., 110 ; Cke., Hlustr., pi. 244a. 



On mosses growing on trunks, also on sawdust. 



