Russula borealis Kauffman 1909

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 ochraceous, 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 deepochraceous-yellow in mass, globose, finely echinulate, 7-8 m in diameter.
Type i^ocaIvITy: Michigan.
Habitat: In mixed woods of hemlock, spruce, yellow birch, and hard maple Distribution: Vermont and Michigan.