EI'SSULA. 53 



CKJwded, unequal, whitish then tinged brown, stem 1— 1|^ 

 in. long, 1-1|^ in. thick, pallid then sooty-black, solid, 

 flesh white, turning blackish when broken; spores 8 /j. 

 •diameter. 



Among grass under trees. 



Form abnormal ; stem short, very thick ; pileus thin and 

 small in proportion to the stem, rather wavy. Taste rather 

 acrid, not pleasant. (Fries.) 



Russula delica. Fr. 



Mild. "White. Pileus 4-6 in. across, flesh firm, white, 

 thick to the margin ; convex then expanded and umbilicate 

 or depressed, even, shining, glabrous, but often with a white 

 superficial silkiness, margin incurved ; gills decurrent, thin, 

 distant, brittle, unequal, white or with a slight tinge of 

 green; stem 1-1 J in. long, up to 1 in. thick, equal, solid, 

 firm ; spores minutely echinulate, white, broadly elliptical, 

 8-10 X 6-7 fi. 



Bussula delica, Fiies, Epicr., p. 350 ; Cke., Hdbk., p. 320 ; 

 Cke., Illustr., pi. 1068. 



Lactarius exsuccus. Otto; Cke., Hdbk., p. 311; Cke., 

 Illustr., pi. 981. 



In woods. 



Dr. Cooke considers that the present fungus and Lactarius 

 •exsuccMS are distinct species. His reasons for this are given 

 in detail in Grevillea, vol. xvi. p. 65. 



Dry places in pine woods. Stature and colour unchange- 

 able, entirely white as in Lactarius vellereus and Lactarius 

 jnperatus, but readily distinguished by the absence of milk 

 in the gUls. Stem solid, short (1-2 in.), | in. and more 

 thick, even, glabrous, white. Pileus everywhere fleshy, 

 firm, umbilicate then infundibuliform, regular, even every- 

 where, glabrous, but often with a white downiness, 3-6 in. 

 broad ; margin incurved, not striate. Flesh firm, juiceless, 

 not very thick, white ; giUs decurrent, thin, but distant, 

 very unequal, exuding drops of water in damp weather. 

 (Fries.) 



Pileus even broader than the last (L. vellereus'), white, 

 fleshy; flesh white without milk and not changing colour. 

 Gills distant, white, with often a tinge of verdigris, very 

 crisp and brittle, somewhat forked, J in. broad ; con- 



