Pleurotus. 103 



[Kerneri, Wettst. P. obovate or reniform, lateral, not immargi- 

 nate behind, sessile, entire, edge lobed, convex, grey, base blackish, 

 minutely pulverulent ; g. grey, simple ; sp. glob. 3 5. 



tremulus, Fr. P. 1 2 cm. reniform, even, glabrous, disc depr. 

 greyish brown then pale ; g. rather distant, grey ; s. 1 cm. subterete, 

 ascending, grey ; sp. 6 8 x 5 7. 



Differs from P. reniformis in having a stem. 



lauro-cerasi, B. and Br. P. 2 3 cm. thin, horizontal, circular or 

 shell-shaped, sulcate, brownish, attached by narrowed base ; g. broad 

 at middle, whitish ; sp. 8 x 5. 



[dictyorhizus, D. C. White. P. very thin, orbicular, sinuate, 

 subsessile, base reticulately-fibrillose ; g. simple, unequal ; sp. 6 long. 



acerosus, Fr. P. 2 :j cm. very thin, reniform, plane, striate, 

 sublobed, grey, silky white when dry ; g. narrow, crowded, grey ; s. 

 obsolete, base substrigose ; sp. glob. 5 6. 



[Severinii, Com. Shining white. Velvety then almost glabrous, 

 orbicular, edge entire, incurved ; g. decur. simple ; s. short, in- 

 curved. 



C. KESUPINATI. Pileus at first resupinate ; gills radi- 

 ating from an ecccentric point ; thenref""""* ^-"^" 



* Pileus fleshy , uniform in texture. 



porrigens, Pers. White. P. 4 7 cm. thin, tough, resup. then 

 ascending, ear- or fan-shaped, glabrous upwards ; g. very narrow ; sp. 

 78 x 6. 



Resembling P. petaloides in habit but white, and no stem-like 

 base. 



[pinsitus, Fr. P. fleshy, soft, horizontal, silky-villose, wavy, hygr. 

 dingy then white ; g. broad, distinct ; sp. rough, 10 11 long. 



[nidulans, Pers. P. subreniform, tomentose, yellow ; g. broad, 

 tawny-orange ; sp. 3 5 x 1. 



[caesiozonatus, Rab. P. subsessile, tough, plane then depr. 

 behind, downy, ochre-brown, zoned with bluish grey; g. broad, 

 brownish yellow. 



septicus, Fr. P. 1 2 cm. rather fleshy, resup. then reflexed, 

 pubescent, white; s. thin, 2 3 mm. incurved, disappearing; g. 

 distant ; sp. 8 10 x 6. 



Claudopus variabilis differs in tinted gills and spores. 



[roseolus, Q. P. convex, conchoid, translucent, striate, rather 

 woolly, rosy-purple ; g. rosy, edge darker ; s. curved, downy, colour of 

 p. ; sp. 8. 



