368 FUXGUS-FLOEA. 



margin at first incurved, then expanded, elegantly crenately 

 lobed or fimbriate ; flesh watery, white when dry ; gills 

 entirely adnate, not sinuate, very thin, crowded, and narrow, 

 at length torn, white ; stem sometimes verj'- short, at others 

 up to 3 in. long and 1 in. thick, solid, firm, elastic, spongy 

 inside, often twisted or compressed, pallid, usually glabrous, 

 or the base slightly downy. 



Agaricus (Pleurotus) craspecUus, Fries, Epicr., p. 131 ; Cke., 

 Illustr., pi. 256; Cke., Hdbk., p. 103. 



On rotten trunks. 



Distinguished by the very narrow, thin, crowded gills 

 being truly adnate, and not at all emarginate behind. 



Pleurotus fimbriatus. Bolton. 



Pileus 2-3 in. across, flesh quite thin ; more or less plane 

 then depressed, the margin becoming variously broken up 

 into lobes and crenated, even, whitish, hygrophanous and 

 almost hyaline ; stem more or less excentric, about 1 in. 

 long, 2-3 lines thick, firm, compressed, downy, not rooting ; 

 gills adnate, thin, narrow, much crowded, sometimes forked, 

 white. 



Agaricus (PleurGtus) fimhriatus, Cke., Hdbk., p. 103; Cke., 

 Illustr., pi. 178a. 



Agaricus fimhriatus, Bolton, t. 61. 



On trunks. 



A remarkable species, allied to Pleurotus lignatilis. Pileus 

 and stem downy when young, but naked when old, in the 

 specimens found by me. (Fries.) 



Gregarious or tufted. Pileus 3 in. broad ; most beautifully 

 and repeatedly lobed and fimbriated; turning pale. Stem 

 about 1 in. long, smooth. (Berk.) 



Pleurotus Ruthae. B. & Br. 



Pileus 14-3 in. across, flesh thicki&h; more or less fan- 

 shaped, upper stratum gelatinous, rather hispid, whitish or 

 yellowish-buff, even, margin very thin, often striate ; gills 

 determinate and anastomosing behind, about 1^ line broad, 

 white then reddish, interstices veined ; stem either distinctly 

 lateral, or the pileus marginate behind, short, rather stout, 

 reddish, hispid. 



Agaricus (^Pleurotus) rutJiae, Berk, and Broome, Ann. Nat. 



