98 Pkurotus. 



PLEUROTUS, Fr. 



A. EXCENTRICI. Pileus entire, extended laterally, 

 eccentric but not truly lateral. 



* Veil forming a ring on the stem. 



corticatus, Fr. P. 8 18 cm. convex then exp. covered with 

 dense greyish down then floccosely squamulose; g. decur. white, 

 anastomosing behind ; tinged yellow when old ; s. 3 7 cm. subexc. 

 rooting, ring torn ; s. 9 14 x 4 6. 



[Albertinii, Fr. P. convex, dimidiate, sooty, with black squa- 

 mules ; g. decur. distinct, white ; s. with black squamules up to sooty 

 ring. 



dryinus, Pers. P. 59 cm. oblique or subcircular, hard, whitish 

 with brownish spot- like squamules, flesh white then yellowish; g. 

 decur. not anastomosing behind, white tinged yellow ; s. 2 3 cm. 

 sublateral, ring fugacious, torn ; sp. 10x4. 



Differs from P. corticatus in gills not anastomosing behind. 



spongiosus, Fr. P. 5 8 cm. spongy, pulvinate, greyish tomen- 

 tose ; g. sinuato-adnexed, white, simple ; s. 1 3 cm. tomentose, white, 

 ring white, soon torn ; sp. 8 10 x 4. 



[calyptratus, Lindbl. P. soft, lateral-dimidiate, horizontal, 

 reniform, glabrous, viscid, sooty or livid ; g. adnate to a nodule, 

 crowded, white then yellowish ; s. a downy nodule, viscid membranous 

 ring torn. 



* * Gills sinuate or obtusely adnate. 



ulm.ar.ius, Bull. P. 8 15 cm. convex then plane, glabrous, livid 

 then pale, spotted; g. adnexed, broad, whitish; s. 1 3 cm. base 

 thickened, tomentose ; sp. 5 6, glob. 



tessulatus, Bull. P. 710 cm. convex then plane or depr. 

 behind, glabrous, tawny then paler and spotted ; g. uncinato-adnate, 

 white then yellowish ; s. 1 3 cm. glabrous ; sp. - . 



[pardalis, Schulz. Caespitose. P. fleshy, convex, subcentral, 

 glabrous, chestnut then spotted; g. free, crowded, pallid; s. stout, 

 solid, connate at base, white. 



[decorus, Fr. Yellow. P. thin, convex then exp. obtuse, rough 

 with adnate blackish scales ; g. obtusely adnate, crowded ; s. stuffed 

 then hollow, fibrillose ; sp. glob. 6. 



[ornatus, Fr. P. convexo-plane, urnb. with rusty floccose squa- 

 mules that disappear ; g. adnate, very broad, yellow ; s. spongy, yellow ; 

 sp. 6 long. 



[properatus, C. Mart P. membranous, form various, always 



