372 FUNGUS-FLOEA. 



Caespitose. Smell strong; the stem is sometimes almost 

 central. Distinguished from all species except P. corticatus 

 by the gills anastomosing behind, and often forming an open 

 network on the stem-like base. Known from P. corticatus by 

 absence of a ring on the stem. Edible. 



Imbricated, large. Pileus subdimidiate, very thick and 

 fleshy ; flesh white, dusky towards the surface, 1 in. deep ; 

 the border at first fibrillose or even decidedly squamulose, 

 margin involute ; as the pileus expands the white fibrillae 

 vanish and the colour changes from dusky to bistre ; margin 

 paler and rimulose, the whole surface shining and satiny 

 when dry, soft and clammy when moist; towards the base in 

 age there is a little white down. Gills broad, here and there 

 forked, anastomosing at the base, dirty-white, the edge ser- 

 rated, umber. In large specimens there is often a distinct 

 stem, clothed with a dense short white down, which runs up 

 between the gills. When dry, the pileus becomes pallid or 

 j-ellowish. Taste and odour like that of A. personatus, which 

 it resembles somewhat in colour. Stem strjgose at the base, 

 according to Fries. (Berk.) 



Var. glandulosus. With the habit of the typical form, 

 but larger; pileus dark brown, becoming pale ; gills white, 

 with scattered small wart-like or glandular bodies. 



Agaricus glandulosus, Bulliard, t. 426. 



On trunks. 



A very constant, but somewhat rare variety ; easily known 

 by the dark brown pileus. The gland-like bodies on the 

 gills are due to the outward growth of the hyphae of the 

 trama in minute patches here and there. 



Var. euosmus, Cke., Hdbk.,'p. 105 ; Cke., Illustr., pi. 196. 



Agaricus (Pleurotus') euosmus. Berk., Outl., p. 135. 



Strong scented, imbricate ; pileus fleshy, depressed, shining, 

 silky when dry, at first white with a tinge of blue, then 

 brownish ; stem short or obsolete ; gills decurrent, ventri- 

 cose, dingy white, spores 12-14 X 5 /x, pale pinkish-lUac. 



On elm trunks. 



Pilei very much crowded, 2 in. or more across, deeply de- 

 pressed, unequal, at first white, invested with a slight blue 

 varnish, at length of a pale brown; stems distinct above, 

 connate below; gills rather broad; running down to the 



