Aurantiporus pilotae (Schwein.) Murrill 1905

Aurantiporus pilotae (Schw.) Murrill, Bull. Torrey
Club 32 : 487. 1905.
JPolyporus croceus Pers. Obs. Myc. 1 : 87. 1796. (Type from Europe.)
Polyporus Pilotae Schw. Trans. Am. Phil. Soc. II. 4 : 157. 1832. . _ ^^ ,
Polyporus Pini-canadensis Schw. Trans. Am. Phil. Soc. II. 4: 157. 1832. (Type from ir'ennsyi-
vania, said to have been found on hemlock.) Polyporus hypococcinus Berk. Lond. Jour. Bot. 6 : 319. 1847. (Type from Ohio.) Polyporus casianophilus Atk. Jour. Myc. 8 : 118. 1902. (Type from North Carolina, on rotten
chestnut logs.)
Pileus sessile, often subradicate, dimidiate, convex, 8-20X10-40X1-3 cm.; surface rugose, sodden, velvety, with short hairs, ochraceous or reddish-orange, soon fading, brownish behind ; margin ochraceous, sterile, tumid, becoming thinner at maturity: context melleous, tough, watery, elastic, rigid when dry, conspicuously marked with sordid zones, odor strong, but not characteristic ; tubes 5-10 mm. long, luteous-orange to brightorange when fresh, becoming dark and resinous on drying, the mouths small, regular, concolorous, 4-5 to a mm., dissepiments thin, minutely fimbriate : spores smooth, hyaline, 3-4X2-3/^.
Type locality : Pilot Mountain, North Carolina, on a dead chestnut trunk.
Habitat : Much decayed oak and chestnut logs.
Distribution : Canada to North Carolina and west to Iowa ; possibly also in Europe.