Part 1, 1907] POLYPORACEAE 5 
circular, minute, 7 toa mm., edges thick-walled, entire: spores globose, smooth, hyaline, 
copious, 5-6; hyphae ferruginous-fulvous, 3-4; cystidia fulvous, pointed, ventricose at 
the base, scanty, 15-25 pn. 
Type collected at St. Martinsville, Louisiana, on the under side of decaying fallen trunks of 
Juniperus virginiana, December 3, 1888, A. B. Langlois 1584. 
DISTRIBUTION: Known only from the type locality. 
5. Fuscoporia marginella (Peck) Murrill. 
Polyporus marginellus Peck, Ann. Rep. N. Y. State Mus. 42: 26. 1889. 
Effused, inseparable, irregular, rigid, corky, 2-5 mm. thick; margin distinct, adnate, 
thin, undulate, finely tomentose, sterile, subcinnamon, becoming fulvous with age, the 
extreme growing margin said to be white when fresh: context conspicuous, ferruginous, 
rather soft, 0.5 mm. thick; hymenium ferruginous to dark-fulvous, often uneven; tubes 
oblique, 3 mm. long, whitish-stuffed and avellaneous within, mouths subcircular, 4 to a 
mm., edges obtuse, entire: spores ovoid, smooth, hyaline, 6X5; hyphae ferruginous, 44; 
cystidia very long and very slender, fulvous, abundant, 50-804. 
TYPE LOCALITY: North Elba, New York. 
HABITAT: Dead bark and decorticated trunks of Abies nigra. 
DISTRIBUTION : New York. 
6. Fuscoporia ferruginosa (Schrad.) Murrill. 
Boletus ferruginosus Schrad. Spic. Fl. Germ. 172. 1794. 
Effused, inseparable, irregular, coriaceous to rigid, 1-3 mm. thick; margin thin, 
adnate, usually determinate, entire to undulate, tomentose, sterile, ferruginous: context 
conspicuous, ferruginous; hymenium plane or uneven, often oblique, sometimes imbricate- 
undulate, bright-ferruginous, becoming ferruginous-fuscous with age; tubes whitish-stuffed, 
ferruginous to fuscous within, mouths variable, irregular, subcircular, averaging about 4 to 
a mm., edges thin, more or less dentate: spores obovate-oblong, smooth, hyaline, 1-gut- 
tulate, 5X3; hyphae flavous, 2-3; cystidia fulvous, cuspidate, ventricose at the base, 
abundant, 35-45 & 6-8 u. 
TYPE LOCALITY: Germany. 
Hasirat: Dead deciduous wood. . 
DISTRIBUTION: North America; also in Europe. 
7. Fuscoporia fulvida (Ellis & Ev.) Murrill. 
Mucronoporus fulvidus Ellis & Ev. Proc. Acad. Phila. 1894: 323. 1894. 
Effused, inseparable, oblong-elliptical to irregular, rigid, 1-3 mm. thick; margin thin, 
adnate, irregular, sterile, tomentose, ferruginous, becoming umbrinous or brownish with 
age: context conspicuous, thin, fulvous; hymenium plane or slightly convex, usually even, 
ferruginous to fulvous, slightly grayish with age; tubes ferruginous within, partially whit- 
ish-stuffed, mouths regular, at first thick-walled, subcircular to angular, 4-5 to a mm., 
edges thin, uneven to slightly dentate or fimbriate with age: spores subglobose, smooth, 
‘hyaline, 2“; hyphae luteous; cystidia tolerably abundant, rather pale, 25-35 & 3-4. 
TYPE LoéaLity: Berkeley, California. 
HaBItraT: Dead limbs of alder. ; 
DISTRIBUTION: Known only from the type locality. 
8. Fuscoporia rufitincta (Cooke) Murrill. 
Porta rufitincta Cooke, Grevillea 15: 25. 1886. — Jour. Linn. Soc. 35: 7. 1901. 
Broadly effused, partly separable with age, coriaceous to rigid or slightly flexible, about 
1 mm. thick; margin free, thin, narrowly sterile, lobed, nearly glabrous, ferruginous: con- 
text conspicuous, ferruginous, less than 0.5 mm. thick; hymenium uneven, rufous, suf- 
fused when young with a grayish-umbrinous pruinosity, assuming a slightly reddish tinge 
with age; tubes very short, less than 1 mm., ferruginous to slightly fulvous within, mouths 
minute, regular, circular, at first punctiform, 7 to a mm., edges rather thin, slightly 
