56 FUNGUS-FLORA. 



are rarely forked, and in this respect might be in the section 

 Fragiles ; in many other points it agrees with the Compactae. 

 (Fries.) 



Russula heterophylla. Fr. 



Mild. Flesh thick, firm, white; convex then plane; 

 usually becoming depressed, quite even and polished, pellicle 

 very thin ; margin thin, often more or less incurved, even or 

 densely but slightly striate ; colour variable, greenish, the 

 disc becoming ochraceous, yellowish brown, &c. ; gills almost 

 free, very narrow, rarely I line broad, very much crowded, 

 forked and with many shorter ones, white; stem about 1J in. 

 long, up to 1 in. thick, nearly equal, solid, firm, white; 

 spores subglobose, echinulate, 7-8 p. diameter; no projecting 

 cystidia. 



Bussula Jieterophylla, Fries, Epicr., p. 352; Cke., Hdbk., 

 p. 328; Cke., Illustr., pi. 1044 and 1045. 



In woods, &c. 



A very distinct species, easily recognised by the even 

 pileus, and very narrow, closely-crowded white gills. 

 B. cyanoxantha differs in the broad gills furnished with 

 numerous projecting cystidia. 



Colour very variable. Taste always mild, as in Bussula 

 cyanoxantha, from which the present differs in its smaller 

 size, thinner pileus, not rugulose, never reddish or purplish, 

 the thin pellicle closely adnate, stem firm, solid, gills thin, 

 exceedingly narrow, very much crowded, shining white, 

 mixed with many shorter and forked ones. Among several 

 forms the following is readily distinguished. (Fries.) 



Far. galochroa, Fr., Hon., ii. p. 195 ; Bussula galochroa, 

 Cke., Hdbk., p. 328; Cke., Illustr., pi. 1089. 



Stem solid, firm, 1-2 in. long, \ in. thick, never tinged 

 with red. Pileus almost plane, viscid in damp weather, 

 usually dry, greenish-white, even, but often with scattered 

 white floccose spots. Gills very thin, more or less forked 

 and unequal ; spores 5-6 //.. 



Especially in heathy birch woods. 



Russula azurea. Bres. 



Mild. Pileus about 2 in. across, convex, then expanded, 

 and more or less depressed, dry, pale glaucous-green, or 



