50 FUNGUS-FLOEA. 



1 line broad, repeatedly forked, connected by veins, brittle ; 

 stem about 2 in. long, | in. thick at tbe base, becoming 

 thinner upwards, slightly -wrinkled longitudinally, firm, 

 brittle, solid ; spore globose with a minute apiculus ■ at the 

 base, almost smooth, 4 /* diameter; cystidia absent. 



Bussula virginea, Cke. & Mass., in Grevillea, vol. xix. p. 41 ; 

 Cke., Hdbk., p. 380; Cke., Illustr., pi. 1197. 



In woods. 



Caie must be taken not to confound the present with 

 bleached forms of other species. Distinguished bj' every 

 part being persistently snow-white from the youngest stage, 

 the very narrow, crowded gills, and the very small spores. 



Russula semicrema. Fr. 



Mild. Pileus about 3 in. across, flesh thick equally so up 

 to the margin, persistently white, firm ; convex then ex- 

 panded and depressed, sometimes wavy, polished white, un- 

 changeable; margin incurved, glabrous, even; gills rather 

 decurrent, thin, crowded, l|-2 lines broad, persistently 

 white ; stem 1-3 in. long, up to 1 in. and even more thick, 

 almost equal and even, white, flesh becoming blackish when 

 broken ; spores globose, verruculose, 8-9 /* diameter. 



Bussula semicrema, Tries, Epicr., p. 350; Cke., Hdbk., 

 p. 820 ; Cke., Illustr., pi. 1067. 



Among leaves. 



Intermediate between JR. adusta and B. delica, but readily 

 distinguished from both. Stem fleshy, solid, firm, 2-3 in. 

 long, white, but becoming greyish and at length blackish 

 inside when broken. Pileus compactly fleshy, convex then 

 plane, even, glabrous, dry ; disc umbilicate, margin at first 

 involute, always even ; colour in every stage persistently 

 white, flesh also, and juiceless ; gills decurrent, crowded, 

 thin, persistently white. Smell none, taste mild. (Fries.) 



Differs from B. adusta and B. densifolia in the persistently 

 white pileus (flesh also) and gills ; and from B. delica in the 

 flesh of the stem becoming blackish. The outside of the 

 stem often becomes dark with age, 



Russula lactea. Fr. 

 Mild. Pileus about 2 in. across, compact and everywhere 

 fleshy, flesh white ; campanulate then convex, often ex- 



