Pleurotus AGARICACE/E 95 



433. P. Lauroeerasi Sacc. (from its habitat, stems of cherry-laurel, 



Primus Laiirocerasus) a b. 

 P. convex, oyster-shaped, silicate, pale brownish-salmon. St. 



obsolete. G. very broad, adnate, veined, salmon-white. 

 Oct. Diam. if in. 



434. P. tremulus Quel, (from its tremulous habit) a b c. 



P. reniform, depressed behind, fuscous-grey, pale slate or brown. 

 St. attenuate downwards, grey. G. adnato-decurrent, whitish- 

 umber or greyish. 



Solitary. On the ground, on moss, fungi, e.g. 1790, when growing on moss ; 

 rare. Aug.-Dec. \\ X T 3 g- X \ in. 



435. P. aeerosus Quel, (from its habitat, amongst dead pine-leaves ; 



acersosus, full of chaff or husk) a b c. 



P. plane, reniform, membranous, whitish, brownish or greyish. 



St. faintly umber-whitish. G. adnate, branched, colour as P. 



or paler. 



Taste insipid, somewhat disagreeable. Lawns, wood, gravel, leaves, pine- 

 wood, pine-leaves, Sphagnum ; rare. Aug. - Dec. i£ X \ X \ in. 

 Resembles 1388. 



c. ResiLpinatce. 



436. P. porrigens Gill, (from its stretched out habit ; fiorrigo, to 



stretch out) a b c. White. 

 P. at length piano-depressed, undulate. G. thick, sometimes 



forming pores. Flesh thin, subcartilaginous. 

 Imbricate. Odour pleasant or insipid. Stumps, chiefly pine. June-Nov. 



Diam. 6\ in. Base villous. 



437. P. septieus Quel, (from its habitat, rotten wood ; septicus, 

 putrifying) a b c. White. 



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



G. rounded-adnate, subdistant. 

 Decayed wood, branches, twigs, pine, bramble, straw, dung, fungi. Mar.- 



Nov. f X ^ X T V in. 



438. P. mastrueatus Sacc. (from its somewhat woolly coat; 



mastruca, a sheepskin) a b c. 



P. ear-shaped, plane, squarrose-scaly, greyish- or whitish-brown. 



G. adnato-decurrent. Flesh mouse-colour. 



Imbricate. Old trunks, logs, beech, amongst moss and lichens ; rare. 

 Diam. 3§ in. 



439. P. atroeseruleus Gill, (from the colour of the pileus • ater, 



black, cceruleus, azure-blue) a b c. 

 P. plane, reniform j marg. ochreous-sienna. G. whitish straw- 

 colour. Flesh with an olive middle stratum. 



Gregarious, subimbricate. Odour pleasant. Trunks, birch, elm, poplar, 

 beech, etc. Oct.-Dec. Diam. if in. 



440. P. Leig'htonii Sacc. (after the Rev. W. A. Leighton) a b c. 



P. at first obliquely conical, furfuraceous, umber or lead-colour. 



G. thick, distant, forked at base, pallid tan. 

 Wood, rotten rails. Dec. Diam. \ in. Might be mistaken for 444. 



