PLEUROTUS 445 



broad. Flesh white. Spores white, oblong ovate, 7-8 x 4/i or 10- 

 12 x 4-5 p, lilac colour in the mass. Smell and taste pleasant. Edible. 

 On elm trunks. June Sept. Not uncommon, (v.v.) 



1445. P. pantoleucus Fr. Fr. Icon. t. 88, fig. 2. 



7ra<?, all; Xev/co?, white. 



Entirely white. P. 4-8 cm., excentric, dimidiate, spathulate, slightly 

 convex, subdepressed and marginate behind. St. 2-3 x 1-1-5 cm., 

 ascending, very excentric, equal, or attenuated downwards. Flesh 

 white, compact. Gills decurrent, somewhat crowded, broad. On trunks, 

 willow. Oct. Uncommon. 



1446. P. mutilus Fr. (= Omphalia mutila (Fr.) Quel.) Fr. Icon. t. 88, 

 fig. 4. Mutilus, maimed. 



Entirely white. P. 1-3 cm., very excentric, or wholly lateral, soft, 

 tough, reniform, spathulate, and depressed behind, subumbilicate, 

 otherwise ascending, silky when dry. St. 6-8 x 2-4 mm. erect, or 

 ascending, excentric, or somewhat lateral, round, tough, base villose. 

 Gills decurrent, somewhat crowded, narrow, thick. Flesh white, thin. 

 Spores white, pip-shaped, 6-7 x 4/u,, 1-guttulate. Pastures, and hill- 

 sides. July Dec. Not uncommon, (v.v.) 



D. Veil none; gills deeply decurrent; p. lateral, sessile, or extended 

 behind into a short, oblique stem-like base. 



1447. P. ostreatus (Jacq.) Fr. Ostreatus, rough. 

 P. 7-13 cm., when young almost black, soon becoming pale, fuscous- 

 cinereous, passing into yellow when old, soft, conchate, somewhat dimi- 

 diate, ascending, moist, cuticle sometimes torn into squamules. St. 

 2-4 x 2 cm., often wanting, white, firm, elastic, ascending obliquely, 

 dilated upwards into the pileus, base strigosely villose. Gills white, be- 

 coming yellowish, margin sometimes umber, decurrent, anastomosing 

 at the base, subdistant, broad. Flesh white. Spores lilac in the mass, 

 elliptical, 9-11 x 4-5-6 /A, 1-many-guttulate. Taste and smell plea- 

 sant. Edible. On stumps, trunks, and logs. Jan. Dec. Common. 

 (v.v.) 



(Bull.) Fr. Glandulosus, having glands. 



Differs from the type in the glandular gills. On stumps. July 

 Nov. Uncommon, (v.v.) 



var. euosmus (Berk.) Cke. (= Pleurotus columbinus Quel.) Hussey, 

 111. Brit. Myc. i, t. 75. 61/007109, sweet smelling. 



Differs from the type in its strong smell like that of tarragon. Poison- 

 ous. On elm stumps. April Oct. Not uncommon, (v.v.) 



