70 
RUSSULA REDIVIVA. 
smooth, even, white. Pileus compact, convex, then plane, then 
depressed or infundibuliform, 2-3 in. broad and high, now even, 
now rugose, or virgate, viscid, margin deflexed, then expanded, 
remotely and faintly striate, colour of the pileus mutable, in 
typical form from lilac or purpurescent to olive-green, disc 
commonly growing pale, sometimes yellowish, margin commonly 
turning bluish or livid purple. Flesh firm, cheesy, white, 
reddish under the separable cuticle. Gills rounded behind, con- 
nected by veins, less crowded, broad, furcate, unmixed with 
shorter ones, white. Varies when old, with the pileus pallid, 
greenish-white, or mixed with a purple colour . — Fries Mon. 194. 
Spores 8-10x6-8 p (Britz.), (Sacc.), 10 /x diam. (M. C. C.), 
9-8 /x (M. C. C.). 
Fries has referred the following forms from Secretan to the 
present species. 
R. cyanoxantha. Seer. No. 520. ScJiceff. t. 93. Bolt. t. 1 (Fig. 
sup.). Pers. Sym. p. 445. 
var. A. Pileus in youth slate-grey, dull and deep ; it takes 
then at the margin a variable, undecided tint, between greenish, 
bluish, and purple. The centre shows purple patches in youth, 
and orange when the plant is old. At this epoch the sides turn 
greenish. The surface is covered with a fine hairiness. It 
approaches hemispherical, the centre in good time depressed. It 
shows then often lobed and divided by a deep groove, like one 
sees in peaches. It becomes successively convex, plane, the 
edges folded under, the centre sunken, then concave, the margin 
split deeply. It is soon eaten beneath by insects. Diam. 5 in., 
5 lines thick. The cuticle is raised easily. Flesh white, firm, 
vinous under the skin. 
Gills white at all ages, numerous, fragile, nearly all furcate at 
different lengths, nearly convex, then slightly arcuate or straight, 
adnate by one bifid extremity, a little decurrent, 3 lines wide, with 
a few short gills. 
Stem white, almost shining, 3^ in. long, 9-10 lines thick, cylin- 
drical, hard, slightly thickened at the apex and the base, some- 
times a little compressed. It takes spots coloured red-brown. The 
foot is recurved and pointed. The odour a little agreeable. — 
Seer. No. 520. 
var. B. This variety is intermediate between the variety A 
and Ag. furcatus. 
Pileus, the tint is always very deep, the colour of dark purple 
at the margin and the centre ; in old age the purple gives place to 
a deep green. The applied chevalure forms a network of crowded 
meshes, blackish, shining, and which does not prevent the surface 
being very smooth and a little viscid. The flesh becomes vinous 
to a considerable depth. 
Gills, 5 lines wide, are flabby, and easily reduced to a paste. 
