Comprehensive Description
provided by North American Flora
Melanoporia nigra (Berk.) Murrill
Polyporus niger Berk. lyOnd. Jour. Bot. 4 : 304. 1845.
Broadly effused, inseparable, rigid, heavy, 0.5-2.5 cm. thick; margin sterile, nearly smooth, slightly elevated at times, adnate, irregular, black : context thin, fuliginous, firm, with a horny black layer next to the substratum ; hymenium distinctly stratified, uneven, black; tubes 2-4 mm. long each season, fuliginous within, mouths small, regular, thinwalled, 4 to a mm., edges entire: spores smooth, ovoid, thick-walled, black, 7X4.5/^; hyphae black or dark-brown ; cystidia none.
Type locality : Ohio.
Habitat : Dead oak trunks or stumps.
Distribution : South Carolina, Ohio, Missouri, and Wisconsin.
- 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
