Polyporus umbellatus (Pers.) Fr. 1821

Grifola ramosissima (Scop.) Murrill, Bull. Torrey
Club 31 : 336. 1904.
Boletus ramosissimus Sco-p. Fl. Carn. ed. 2. 2: 470. 1772. Boletus umbellatus Pers. Syn. Fung. 519. 1801. Polyporus umbellatus Fries, Syst. Myc. 1 : 354. 1821. Cladomeris umbellata Qu61. Ench. Fung. 167. 1886. Cladomeris ramosissima Murrill, Jour. Myc. 9 : 95. 1903.
Pileus imbricatemultiplex, densely clustered, squarrose, umbellate, 12-20 cm. broad ;
pileoli very numerous, quite regular, circular in outline, depressed at the center, 1-4 cm. in
diameter ; surface usually fuliginous, sometimes light-brown or even white, fibrillose, very
rugose when dry ; margin thin, inflexed : context white, fibrous, very thin, fragile when
dry; tubes decurrent, shallow, mouths angular, 2-3 to a mm., edges thin, entire to lacerate :
spores oblong, hyaline, 9-10 X 3^ ^ : stipe tubercular, with long cylindrical branches,
which are white and usually entirely covered with tubes.
Type locality : Carniola.
Habitat : At the base of oak trees.
Distribution ; Connecticut, New York, Pennsylvania, and Ohio ; also in Europe.,