Comprehensive Description
provided by North American Flora
Tyromyces spraguei (Berk. & Curt.) Murrill
Polyporus Spraguei Berk. & Curt. Grevillea 1 : 50. 1872.
Polyporus sordidus Cooke, Grevillea 15 : 20. 1886. (Type from the eastern United States.)
Pileus subimbricate, dimidiate or flabelliform, broadly sessile or attenuate behind, convex, fleshy-tough and watery to rigid and fragile when dry, 4-7 X 5-10 X 1-2 cm.; surface at first milk-white, finely tomentose to glabrous, slightly tuberculose, azonate, sodden, containing depressions filled with exuded water, becoming discolored and roughened and often decaying, especially in damp weather, with a strong and disagreeable odor ; margin undulate or slightly lobed, acute, usually discolored, sometimes smoky-black, inflexedwhen dry : context white, zonate, cheesy when fresh, rigid and somewhat fragile when dry ; tubes small, white to yellowish within, 3-8 mm, long, mouths somewhat uneven, angular, 3-4 to a mm,, edges white to yellowish, thin, entire : spores ellipsoidal, smooth, hyaline, 6X4/..
Type locality: New England.
Habitat ; Dead stumps or trunks of chestnut and oak.
Distribution : New Hampshire to North Carolina and west to Missouri and Iowa.
- bibliographic citation
- William Alphonso MurrilI, Gertrude Simmons BurIingham, Leigh H Pennington, John Hendly Barnhart. 1907-1916. (AGARICALES); POLYPORACEAE-AGARICACEAE. North American flora. vol 9. New York Botanical Garden, New York, NY
