Part 4, 1915] AGARICACEAE 221 
discolored, slightly pruinose to glabrous, solid, becoming hollow, at least at the base, 4-6 cm. 
long, 1.5-2 em. thick: spores ochraceous, globose, echinulate, 7-10 » in diameter. 
Type collected on the ground under willows at Boulder Park, Tolland, Colorado, 2775 m. 
elevation, July 14, 1914, L. O. Overholts 1909 (herb. Overholts; extype herb. Burlingham). 
DISTRIBUTION: Known only from the type locality. 
60. Russula Robinsoniae Burlingham, sp. nov. 
Pileus convex, then plane, wp to 15 em. broad; surface vinous-purple but not uniformly 
colored, varying with dark-purple and some chamois-color and greenish intermingled, viscid 
when wet, with the pellicle separable, at least on the margin, glabrous; margin even: context 
rather thick, white, red next to the cuticle, bitter and peppery; lamellae white, turning yellow - 
very soon, a few short ones present, some forking next to the stipe, venose-connected, very 
narrow at the inner ends, rounded at the outer, subdistant, rather narrow; stipe stained more 
or less with rose-color or vinous-purple, bulbous at the base, spongy, 6-10 cm. long, 2.5 cm. 
thick: spores pale-yellow, echinulate, globose to subglobose, 7-8.5 w in diameter. 
Type collected on the ground under spruce trees at Yellowstone Lake, Wyoming, August 9, 
1912, Winifred J. Robinson (herb. N. ¥. Bot. Gard.). 
DISTRIBUTION: Known only from the type locality. 
61. Russula expallens Gill. Tabl. Anal. 49. 1884. 
Piletis convex-conic, at length plane, 4.5-8 cm. broad; surface varying in color from vinous- 
purple with the center almost black to Indian-lake and dull-garnet, or even salmon-old-rose 
with age, sometimes fading to garnet-brown or umber with some greenish or yellowish-green, 
especially between the disk and the margin, viscid when wet, the pellicle separable on the 
margin, glabrous; margin even: context white or very slightly tinged with rose next to the 
cuticle, acrid, without special odor; lamellae white, then pale-yellow, equal or a few scattered 
short ones present, some forking next to the stipe, rounded at the outer ends, acute at the 
inner, close; stipe tinged like the pileus, usually white at the base, tapering upward, spongy, 
3-7 cm. long, 1-2 em. thick; spores ochroleucous, ovoid, apiculate, minutely echinulate, 
-8 X 8-9 yp. 
TYPE LOCALITY: France. 
Hasitat: In spruce, fir, or mixed woods. 
DISTRIBUTION: Newfane, Vermont; also in Europe. 
InLustrations: Gill. Champ. Fr. pl. 195 (611).* 
XIV. Sanguineae. Pileus without the pellicle noticeably separable, rather firm; surface 
red, dry, glabrous; margin even: context white, unchanging, acrid; lamellae mostly equal, 
forked more or less: spores white to cream-white or very pale yellow. 
62. Russula sanguinea (Bull.) Fries, Epicr. Myc. 351. 1838. 
Agaricus sanguineus Bull. Herb. Fr. #1. 42. 1780. 
Pileus convex, then expanding, and at length depressed in the center, 5-7.5 cm. broad; 
surface blood-red or becoming pale near the margin, glabrous; margin even, acute: context 
firm, white, cheesy, acrid; lamellae white, some short ones present, forked, at first adnate, 
then decurrent, close, narrow; stipe white or reddish, at first contracted at the apex, then equal, 
spongy-stuffed: spores cream-white, broadly elliptic to ovate, echinulate, 6-7 X 7-8.7 u. 
TYPE Locality: France. 
Hasrrat: On the ground in woods. 
DISTRIBUTION: North Carolina and Vermont; also in Europ 
ILLUSTRATIONS: Bull. Herb. Fr. pl. 42; Gill. Champ. Fr. oF “180 (635); Lanzi, Funghi Mang. 
pl. 50, f. 2; Noulet & Dassier, Traité Champ. pl. 16, f. B; Ricken, Blatterp. Deutschl. 91. 19, f. 2. 
* Gillet doubtfully refers this species to R. drimeja Cooke, Grevillea 10: 46. 1881. Not 
having seen specimens of R. drimeja, however, I do not feel warranted in considering these two 
the same species. Peltereau, in Bull. Soc. Myc. Fr. 24: 111. 1908, gives reasons for consider- 
ing R. drimeja Cooke, R. expallens Gill., and R. Queletit Fries varieties of the same species. 
R. Gueletit is described as having white spores and so it occurs here. This would be sufficient 
for separating it from R. expallens, which has yellow spores. 
