Comprehensive Description
provided by North American Flora
Pyropolyporus underwoodii Murrill, EuU. Torrey
Club 30: 116. 1903.
A blackish ungulate plant of large size, with furrowed rimose surface and long brown tubes. Pileus woody, broadly ungulate, attached by a narrow base, concave below, 7X14X11 cm.; surface many times concentrically furrowed, rimose, uniformly darkbrown to black ; margin fulvous, acute or somewhat obtuse, velvety, undulate, marked with narrow zones: context hard, fulvous to dark-brown, very thin, less than 0.5 cm.; tubes distinctly stratified, 0.5-1.5 cm. long each season, 3-4 to a mm., brown within, mouths darker, circular or polygonal, edges acute, entire : spores ellipsoid, smooth, thin-walled, light yellowish-brown, 7 X 9/^ ; cystidia none.
Type locality : Coama Springs, Porto Rico.
Habitat : On dead wood.
Distribution : Bahamas ; Cuba ; Jamaica ; Porto Rico ; St. Thomas.
- 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
