94 NORTH AMERICAN FLORA [VOLUME 9 
7. Coltricia Memmingeri Murrill, Bull. Torrey Club 31: 347. 1904. 
A large dark-brown plant, with rough shaggy surface and short thick stipe, much 
dilated at the base. Pileus very irregular, circular to dimidiate, convex to plane or de- 
pressed, 10 X1cm.; surface fulvous to dark seal-brown, ornamented with long imbricated 
scales of the same color; margin alutaceous, pubescent, sterile, subacute, undulate: context 
corky, fragile, azonate, 0.5-1 cm. thick, thinner towards the margin, concolorous ; tubes 
adnate, 1-4 mm. long, 1-3 to a mm., umbrinous, apparently blackening with age, mouths 
circular and whitish when young, becoming angular, irregular and concolorous or ‘darker 
with age, edges entire to dentate: spores ovoid, smooth, light-ferruginous, usually 2-gut- 
tulate, 4X 74; hyphae golden-yellow ; cystidia none: stipe central or excentric, at times 
confluent, very short, thick, angular or flattened, dilated at the base to twice its thick- 
ness above, resembling the pileus in color, surface and substance, 1-3 & 3-5 cm. 
TYPE LOCALITY: Flat Rock, North Carolina. 
HABITAT: Wet clay banks. 
DISTRIBUTION: Known only from the type locality. 
DOUBTFUL SPECIES’ 
Polyporus simillimus Peck, Ann. Rep. N. Y. State Mus. 32: 34. 1879. Described 
from Brewerton, New York, on burnt soil where C. focicola grew; which species it very 
closely resembles in every respect except that its tubes are much smaller. Additional field 
studies should determine whether or not it is distinct. 
64. CRYPTOPORUS (Peck) Shear, Bull. Torrey Club 29: 450. 1902. 
Polyporus § Cryploporus Peck, Bull. Torrey Club 7: 104. 1880. 
*. Hymenophore subglobose, sessile, epixylous; surface smooth, encrusted: context 
white, corky ; tubes white, concealed at first by a volva, which breaks at one or more points 
at maturity ; mouths constricted, discolored : spores smooth, hyaline. 
Type species, Polyporus volvatus Peck. 
1. Cryptoporus volvatus (Peck) Shear, Bull. Torrey 
Club 29: 450. 1902. 
Polyporus volvatus Pegk, Ann. Rep. N. Y. State Mus. 27: 98. 1877. 
Polyporus obvolutus Berk. & Cooke, Grevillea 7:1. 1878. (Type from California.) 
Polyporus inflaius Hillis & Martindale, Am. Nat. 18: 722. 1884. (Type from Oregon.) 
Polyporus volvatus Helix P..Henn. Hedwigia 37: 273. 1898. (Type from California.) 
Pileus simple, sessile, rarely spuriously stipitate, globose to ungulate, 2-6 cm. broad, 
1.5-3 cm. thick; surface white, sometimes slightly reddish-brown, smooth, slightly viscid 
or resinous when young, glabrous, marked with anastomosing depressed lines in larger 
specimens; margin very rounded, concolorous, smooth, produced into a volva covering the 
tubes, at length rupturing at 1-3 points forming small rounded or irregular apertures: con- 
text soft-corky, homogeneous, white, 2-5 mm. thick; tubes 1-1.5 mm. long, isabelline to 
umbrinous, mouths’ angular, yellow with a tinge of cinnamon, 3 to a mm, edges thick, 
becoming thin, entire: spores oblong, smooth, hyaline or pale flesh-colored, 11-13 
4-5 pb. 
TYPE LOCALITY: New York, on Abies nigra, 
HagzitTaT: On dead coniferous wood. 
DISTRIBUTION : Canada to Virginia and west to British Columbia and California ; alsoin Japan. 
ILLUSTRATION: Peck, loc. cit. pl. 2, fi 3-6. 
ExsiccaTI: Ellis, N. Am. Fungi 307. 
65. FOMES Gill. Champ. Fr. 1: 682. 1878. 
Fomitopsts Karst, Rev. Myc. 39: 18. 1881. 
Heterobasidion Bref. Unters. Gesammt. Myk. 8: 154. 1889. Not Heterobasidium Massee 1888. 
Hymenophore sessile, ungulate or applanate, epixylous; surface anoderm or en- 
crusted, sulcate, rarely zonate: context white, wood-colored, or flesh-colored corky or 
