70 NORTH AMERICAN FLORA [VoLUME 9 
Polyporus Peckianus Cooke, Trans. Bot. Soc. Edinb. 13: 148. 1878. 
Polystictus Peckianus Sacc. Syll. Fung. 6: 209. 1888. 
Pileus cespitose-multiplex, sometimes simple, rather small for the genus, rarely 10 
em. in diameter; pileoli irregularly circular or flabelliform, often depressed, 3-5 cm. broad, 
2-5 mm, thick; surface pale-luteous or ochraceous, lightly marked with obscure lines, 
rugose, finely tomentose, roughly villose behind; margin very thin, concolorous, inflexed 
when dry: context fleshy, very fragile when dry, white, 1-2 mm. thick; tubes decurrent, 
white to yellowish, 1-2 mm. long, mouths small, angular, 4-5 to a mm., edges thin, fragile, 
fimbriate: spores smooth, hyaline: stipe central, irregular and distorted, more pallid than 
the pileus, pulverulent to glabrous, solid, tubercular, often branched just above the base, 
the branches being 5 mm. in diameter and nearly cylindrical in shape. 
TYPE LOCALITY: South Carolina. 
HABITAT: On the ground in woods. : 
DISTRIBUTION: Canada, New York and South Carolina. 
41. AURANTIPORELLUS Murrill, Bull. Torrey Club 32: 486. 1905. 
Hymenophore large, annual, epixylous, effused, immarginate or narrowly reflexed ; 
surface azonate, soft, anoderm and orange-colored when young, becoming slightly en- 
crusted and darker with age: context orange-colored, extremely soft and spongy through- 
out; tubes orange-colored, very large, thin-walled, irregular, lacerate, fragile: spores 
smooth, hyaline. 
Type species, Polyporus alboluteus Ellis & Ev. 
1. Aurantiporellus alboluteus (Ellis & Ev.) Murrill, Bull. Torrey 
Club 32: 486. 1905. 
Fomes alboluteus Ellis & Ev. Proc. Acad. Phila. 1895: 413. 1895. 
Polyporus alboluteus Ellis & Ev. Bull. Torrey Club 25: 513. 1898. 
Pileus soft, spongy, effused, laterally connate, narrowly reflexed at times, but usually 
entirely resupinate, 5-6 cm. broad, 1-4 cm. thick; surface anoderm, velvety, azonate, 
orange-colored, becoming slightly encrusted and darker with age; margin thin, reflexed, 
concolorous: context very soft, spongy, orange-colored, absorbing water to a remarkable 
degree, 0.5-1.5 cm. thick; tubes annual, light orange-colored, very large, 1-2 cm. long, 
mouths irregular, 1-2 mm. in diameter, edges thin, concolorous, somewhat fragile, more 
pallid on their extreme margin, lacerate with age: spores oblong, smooth, hyaline, 
8-12 3. 
TYPE LOCALITY: Colorado, 3000 meters, on charred trunks of Abies subalpina. 
HABITAT: Dead coniferous trunks projecting from the snow. 
DISTRIBUTION : Colorado. 
EXSICCATI: Ellis & Ev. Fungi Columb. 1637. 
42. PYCNOPORELLUS Murrill, Bull. Torrey Club 32: 489. 1905. 
Hymenophore annual, epixylous, sessile, dimidiate, simple or imbricate, reddish or 
orange-colored throughout; surface anoderm, margin thin: context thin, friable; tubes 
thin-walled, fragile, at length lacerate: spores smooth, hyaline or pale-yellowish. 
Type species, Polyporus fibriliosus Karst. 
1. Pycnoporellus fibrillosus (Karst.) Murrill, Bull. Torrey 
Club 32: 489. 1905. 
Polyporus fibrillosus Peck, Ann. Rep. N. Y. State Mus. 26: 69. 1874. (Type from New Vork, on 
fallen wood.) : 
Lnonotus fibriliosus Karst. Bidr. Finl. Nat. Folk 37: 72. 1882. 
Polyporus Shiraianus P, Henn. Bot. Jahrb. 28: 269. 1900. (Type from Japan ; on Abies.) 
Pileus soft, spongy, fragile when dry, thin, sessile, dimidiate, imbricate, 3-5 & 6-8 
X0.5-1 cm.; surface anoderm, orange-colored, fribrillose-tomentose, zonate, at times un- 
even and sodden in appeatance; margin thin, subentire, tomentose, paler: context ob- 
scurely zoned, orange-colored, friable when dry, spongy and absorbing water when fresh, 
3-5 mm. thick; tubes annual, 3-5 mm. long, pallid to orange-colored, mouths angular, 
