6 NORTH AMERICAN FLORA [VoLUME 9 
uneven, entire: spores subglobose, smooth, hyaline, 4-5; hyphae ferruginous; cystidia 
long and slender, deep-fulvous, 60-80 & 8 #. 
TYPE LOCALITY: Cuba. 
HABITAT : Dead wood. 
DISTRIBUTION: West Indies. 
9. Fuscoporia nicaraguensis Murrill, sp. nov. 
Broadly effused, irregular, inseparable, coriaceous to rigid, 2.5-4 mm. thick; margin 
adnate, rather thick, more or less determinate, lobed, tomentose, ferruginous, narrowly 
sterile, becoming glabrous and purplish-brown with age: context conspicuous, ferruginous, 
1 mm. or more thick ; hymenium very smooth, umbrinous with a smoky tinge, ferruginous 
when very young; tubes umbrinous within, whitish-stuffed, 1-2 mm. long, mouths minute, 
regular, circular, 8-9 to a mm., edges thick, entire: spores globose, smooth, hyaline, 3 4; 
hyphae bright-ferruginous ; cystidia conical, pointed, ferruginous, ventricose when young, 
abundant, 25-35 K 4-8 #. 
Type collected at Castillo, Nicaragua, on decorticated deciduous trunks, in 1891-2, Charles L. 
Smith. 
DISTRIBUTION : Known only from the type locality. 
DOUBTFUL SPECIES 
Boletus superficialis Schw. Schr. Nat. Ges. Leipzig 1: 99. 1822. Described from 
North Carolina specimens collected on dead Prunus sp. Possibly an immature form of 
Polyporus viticola Schw. 
15. FUSCOPORELLA Murrill, gen. nov. 
Hymenophore resupinate, epixylous, effused, annual: context thin, brown; tubes one- 
layered, brown, usually small and regular: spores globose to ovoid, smooth, brown; cys- 
tidia rarely present. 
Type species, /uscoporella coruscans Murrill. 
Tubes large, 2-3 toa mm.; margin free. 1. & palmicola. 
Tubes small, 4-7 toa mm.; margin adnate. 
Cystidia abundant; species temperate. 2. F. ludoviciana, 
Cystidia none ; species tropical. 
Hymenium chestnut-colored at maturity; spores 5-6 nw. 3. F. costaricensis. 
Hymenium ferruginous to dark-fulvous ; spores 3-5 x. 
Hymenium glistening and changing color to.a marked degree, tubes 
very oblique; spores subglobose, 4-5 yu. 4. F. coruscans. 
Hymenium not as above. 
Mouths regular, edges obtuse. 5. FY. mexicana, 
Mouths irregular, edges acute. 6. F. Shaferi. 
1. Fuscoporella palmicola (Berk. & Curt.) Murrill. 
Polyporus palmicola Berk. & Curt. Jour. Linn. Soc. Bot. 10: 317. 1868. 
Effused, suborbicular, separable, thin, soft, coriaceous, flexible, 1-2 mm. thick; margin 
free, thin, broadly sterile, fimbriate, entire or lobed in outline, flavous-ferruginous, finely 
tomentose: context thin, conspicuous, concolorous with the margin; hymenium flavous- 
ferruginous, becoming nearly fulvous; tubes short, punctiform near the margin, about 1 
mm. long at the center, fulvous within, mouths large, circular to somewhat irregular, 
averaging 2 toa mm., edges obtuse, entire: spores subglobose, smooth, ferruginous-ful- 
vous, 34; hyphae ferruginous, 3-4; cystidia scanty, very long, slender, fulvous, 40-60 u 
long, 6-7» thick at the base. 
TYPE LOCALITY: Cuba. 
HaBitTaT: Dead stipes of a prickly palm. 
DISTRIBUTION : Known only from the type locality. 
2. Fuscoporella ludoviciana Murrill, sp. nov. 
Broadly effused, inseparable, irregular, rigid, woody, 1 mm. thick; margin thin, 
adnate, somewhat depressed, fertile, ferruginous, undulate or lobed: context inconspicu- 
ous, ferruginous to fulvous; hymenium plane, ferruginous to grayish-umbrinous; tubes 
cylindrical, very oblique, the layer about 1 mm. thick, umbrinous within, mouths 5 toa 
