26 NORTH AMERICAN FLORA [Volume 9 
4-6 toa mm., edges white to ochraceous, very thin, denticulate: spores globose, smooth, 
hyaline, 44; hyphae 5; cystidia none. 
TYPE LOCALITY: Colombia. 
HaBItTaT: Dead deciduous logs and sticks. 
DISTRIBUTION: Colombia to southern Florida. 
35. Coriolus biformis (Klotzsch) Pat. Tax. Hymén. 94. 1900. 
? Boletus cervinus Schw. Schr. Nat. Ges. Leipzig 1: 96. 1822. (Type from North Carolina.) 
Polyporus biformis Klotzsch, Linnaea 8: 486. 1833. . 
Polyporus molliusculus Berk. Lond. Jour. Bot. 6': $20. 1847. (Type from Ohio.) . 
Polyporus carolinensis Berk. Jour. Bot. & Kew Mise. 1: 102. 1849. (Type from South Carolina.) 
Polyporus chartaceus Berk. Jour. Bot. & Kew Misc. 1: 103. 1849.—Grevillea1: 53. 1872. (Type 
from North Carolina.) c 
Polyporus scarrosus B. & C. Grevillea 1:.52, 1872. (Type from North Carolina.) 
Pileus effused-reflexed, imbricate, laterally connate, the reflexéd portion dimidiate, 
conchate, 2-5 X 5-12 * 0.3-0.7 cm.; surface white, obscurely zonate, nearly smooth, some- 
what silky, fibrillose-tomentose; margin acute or obtuse, undulate to lobed: context soft- 
corky, white, 1-2 mm. thick; tubes 3-5 mm. long, white to discolored within, mouths large 
and irregular, variable in size, averaging 2 to a mm., edges thin, lacerate-dentate, white 
to discolored or light-bay: spores oblong, slightly curved, smooth, hyaline, 7-9 X 2.5-3 4 ; 
hyphae 4; cystidia norie. 
TYPE LOCALITY: Boreal North America. 
HABITAT: Dead deciduous wood of various kinds. 
DISTRIBUTION : Canada to Florida and west to Iowa and Kansas. . 
Exsiccati: Rab.-Wint. Fungi Eur. 3428 ; Thiim. Myc. Mar. 2005 ; Rav. Fungi Car. 2: 18; Ellis 
& Ev. N. Am. Fungi 1596, 1703 ; Rav. Fungi Am. 7/4, 
36. Coriolus maximus (Mont.) Murrill, Bull. Torrey 
Club 34: 467. 1907. 
Irpex maximus Mont. Ann. Sci. Nat. II. 8: 364. 1837. — Syll. Crypt. 174, 1856. . 
Polyporus labyrinthicus Mont. Pl. Cell. Cuba 406. 1842. Not P. labyrinthicus Schw.; Fries, 
Elench. Fung. 83. 1828. (Type from Cuba.) 
Polyporus Meyenti Klotzsch, Nova Acta Acad. Leop.-Carol. 19: Suppl. 236. 1843. (Type from 
Manila.) .-- 
Trametes obstinatus Cooke, Grevillea 12: 17. 1883. (Type from Australia.) 
Pileus very large, flexible or rigid, leathery, sessile, dimidiate, imbricate, 5-12 < 10-20 
X 0.2-0.5 cm. ; surface conspicuously villose-tomentose to partially glabrous, concentrically 
furrowed, white or cremeous, becoming hoary ; margin thin, entire to lobed: context soft 
and spongy above, tough and fibrous below, white, 1-3 mm. thick; tubes 1-2 mm. long, 
white to cremeous within, soon becoming irpiciform, mouths circular when very young, 
3-4 toa mm., edges white to ochraceous, firm, fimbriate-dentate, soon splitting into sharp 
teeth: spores smooth, hyaline. 
TYPE LOCALITY: Cuba. 
HaBiraT: Dead wood. 
DISTRIBUTION: West Indies and Central America; also in Old World tropics. 
37. Coriolus sobrius (Berk. & Curt.) Murrill, Bull. Torrey 
Club 32: 649. 1906. 
Polyporus sobrius Berk & Curt. Jour. Linn. Soc. 10: 316. 1868. 
Pileus very thin, small, flabelliform, imbricate, 1.5><1X0.1 cm.; surface very smooth, 
glabrous, subzonate, isabelline to pale-chestnut, variegated; margin very thin, entire: 
context membranous, white, less than 0.5 mm. thick; tubes nearly 1 mm. in length, 
shorter near the margin, soon becoming irpiciform, mouths rather large for the size of the 
pileus, irregular, radially elongate, angular, 24 to a mm., edges white to discolored, 
entire to lacerate: spores not examined. 
TYPE LOCALITY : Cuba. 
HasitaT: Dead wood. 
DISTRIBUTION: Known only from the type locality. 
38. Coriolus cyphelloides (Fries) Murrill. 
Polystictus cyphelloides Fries, Nov. Symb. 88. 1851. 
Pileus minute, erumpent through the cortex, thin, coriaceous, pendulous, subcampanu- 
late to unguliform, attenuate behind, 0.61 0.2-0.3 cm.; surface finely tomentose to 
