96 AGARICACEyE Pleurotus 



441. P. algidus Quel, (from its frequent growth in northern countries; 



algidus, cold) a b c. 



P. plane, subreniform, pruinose when young, viscid, brown. 



G. adnate, becoming pallid yellow. 



Usually caespitose and imbricate. Trunks, mountain-ash, willow. Aug.— 

 Oct. Diam. 2\ in. 



442. P. fluxilis Gill, (from the gelatinous, upper stratum of the 



pileus ; fluxilis ', fluid) a. 



P. plane, reniform, umber. G. adnato-rounded, whitish. Flesh 



a gelatinous stratum without a membrane. 



Solitary. Wood, amongst moss on trunks, sawdust, mosses. Oct. 

 Diam. \ in. Not usually resupinate. 



443. P. eyphellseformis Sacc. (from its resemblance to a Cyphelld) 



a b c. 

 P. cup-shaped then conico-dependent, greyish or brownish. G. 



radiating from a central point, white. Flesh, upper stratum 



dark brown, lower white. 

 Gregarious. Dead herbaceous stems, Fceniculum, Epilobium ; rare. Feb.— 



Oct. Diam. T V~t in. 



444. P. applieatus Quel, (from its close attachment to branches, etc. ; 



applicatus, closely attached) a b c. 



P. cup-shaped, then expanded or reflexed, dark grey. G. 



radiating from a central point, lighter than P. 



Dead branches, twigs, bramble, oak, ash, pine, Ribes, Vitis. Sept. -June. 

 Diam. f in. Sometimes proliferous. 



445. P. Hobsonii Sacc. (after Lieut. Julian C. Hobson) a. 



P. plano-convex, reniform, downy, pale grey. G. subdistant, 



adnate, pallid. 

 Stumps, larch. Sept. Diam. § in. 



446. P. striatulus Quel, (from the slightly striate pileus) a c. 



P. cup-shaped, not usually reflexed, fuscous or grey. G. few, 



radiating from a central point, lighter than P. 

 Gregarious. Stumps, twigs, etc., fir, hazel, elm. May-Dec. Diam. ^ in. 



447. P. hypnophilus Sacc. (from its frequent habitat, Hypmim ; Gr. 



philos, loving) a c. White. 



P. at length plane, subreniform. St. villous, at length vanishing. 



G. narrow, radiating from a central point. 



On the larger mosses, leaves, leaves and stems of grass. Sept.-Dec. 

 Diam. f in. Resembles 553 in habit. 



448. P. ehioneus Gill, (from its colour ; Gr. chion, snow) a b c. 



P. subresupinate, convex, villous. St. lateral, villous, at length 

 vanishing. G. very distant, broad, radiating from a central 

 point. 



Wood, decorticated elder, leaves, dung, bone ; rare. Sept.-Dec. ^ x ^ X 



