220 NORTH AMERICAN FLORA [VoLuME 9 
equal, a few forked, venose-connected, adnexed to free, close; stipe white or rosy-tinted, 
sttbequal or veutricose, spongy-stuffed, obscurely rivulose, 5-9 cm. long, 2-2.5 cm. thick: 
spores yellow-ochraceous, subglobose, echinulate, 6-8 » in diameter. 
TYPE LOcALITy: Michigan. 
Hasitat: Frequent in mixed or oak and maple woods. 
DIstRIBUTION: Michigan. 
56. Russula corinthiirubra Burlingham, sp. nov. 
Piles becoming plane or slightly depressed in the center, up to 9 cm. broad; surface 
Corinthian-red, fading, the center becoming tinged with maize-yellow, viscid, with the pellicle 
separable half way to the center, glabrous; margin becoming slightly striate-tuberculate: 
context tinged with red next to the pellicle, otherwise white, slowly acrid, without special odor; 
lamellae becoming yellow, equal, some forked next to the stipe, venose-connected, narrow at 
the inner ends, broad and ventricose toward the outer, rather thick, close; stipe white, firm, 
nearly equal, 4 cm. long, 1.7 em. thick: spores ochraceous, subglobose, echinulate, 7 X 8.7 u. 
Type collected in sandy soil under oak, pignut, and chestnut, at Cold Spring Harbor, Long 
Island, New York, August 2, 1912, Gerirude S. Burlingham 77-1912 (herb. Burlingham). 
DISTRIBUTION: Known only from the type locality. 
57. Russula aurantialutea C. H. Kaufiman, Rep. Mich. Acad. Sci. 
11: 81. 1909. 
Pileus convex, then plane to depressed in the center, thin, 5-12 cm. broad; surface honey- 
yellow to Naples-yellow in the center, coppery-orange toward the margin, viscid and shining 
when moist, pellicle separable, except on the disk, glabrous; margin even at first, becoming 
slightly striate-tubereulate: context yellowish next to the cuticle, otherwise white, unchanging, 
fragile, acrid, the odor not noticeable; lamellae becoming maize-yellow, dusted with the spores, 
mostly equal, many forking next to the stipe, venose-connected, acute at the inner ends, 
broad at the outer, rather close; stipe white, nearly equal, firm, then spongy-stuffed, 
glabrous, even, 4-10 cm. long, 1.5~2.5 cm. thick: spores ochraceous-yellow, subglobose, 8-9 u in 
diameter. 
TYPE LocaLity: Michigan. 
Hasirart: In leaf-mold in hemlock, mixed, or deciduous woods. 
DISTRIBUTION: Michigan and Vermont. 
58. Russula borealis C. H. Kauffman, Rep. Mich. Acad. Sci. 11: 69. 
1909. 
Pileus fleshy, firm, convex, then plane to slightly depressed, often with a sinus on one side, 
5-9 cm. broad; surface Morocco-red, uniform or darker on the disk, not fading, hardly viscid, 
pellicle somewhat separable; margin even or obscurely striate: context white, red under the 
cuticle, not very thick, mild, sometimes slightly and tardily acrid, odor none; lamellae ochra- 
ceous, the edges often reddish anteriorly, equal, a few forked toward the stipe, moderately 
close, rather broad, broader at the outer ends, narrowly adnate, interspaces venose; stipe 
white, tinged with red in places, thickened below, firm, spongy-stuffed, 5-7 cm. long, 1.5-2 cm. 
thick: spores deep-ochraceous-yellow in mass, globose, finely echinulate, 7-8 « in diameter. 
TYPE LOCALITY: Michigan. 
Hasirat: In mixed woods of hemlock, spruce, yellow birch, and hard maple. 
DISTRIBUTION: Vermont and Michigan. 
59. Russula atroviolacea Burlingham, sp. nov. 
Pileus convex, then plane and depressed in the center, 4-9 cm, broad; surface haematite- 
red or diamine-brown, uniformly colored or rarely lighter in the center, viscid when wet, with 
separable pellicle, glabrous; margin even: context fleshy, solid, not fragile but thin, purplish 
under the cuticle, otherwise white, tardily and slightly peppery; lamellae cream-colored, 
darker with age or in drying, mostly equal, branching somewhat next to the stipe, interspaces 
venose, rather close, adnate, 6-10 mm. broad; stipe equal or slightly larger below, white, not 
