Parr 1,.1907| POLYPORACEAE 7 
mm., regular, edges thin, rigid, entire, uneven because of the oblique tubes: spores 
globose, smooth, ferruginous, copious, 4-5; hyphae ferruginous, 4; cystidia abundant, 
dark-fulvous, ventricose, pointed, 10-15 X64. 
Gee collected at St. Martinsville, Louisiana, on oak branehes, March 11, 1889, A. B. Langlois 
DISTRIBUTION: Known only from the type locality. 
3. Fuscoporella costaricensis Murrill, sp. nov. 
Orbicular to irregularly effused, inseparable, rigid, fragile, 1-2 mm. thick; margin 
thin, adnate, entire to undulate, narrowly sterile, ferruginous, nearly glabrous, becoming 
blackish at times with age: context inconspicuous, ferruginous to fulvous; hymenium 
nearly plane, ferruginous when very young, soon becoming umbrinous and finally chestnut- 
colored, cracking with age; tubes very short, 1-2 mm. long, umbrinous within, mouths 
punctiform, ruular, subcircular, 5-6 toamm., edges thin, rigid, entire: spores subglobose, 
smooth, ferruginous, 5-6“; hyphae pale-ferruginous, 3-4; cystidia none. 
Type collected at Santo Domingo de San Mateo, Costa Rica, 300 meters, on a decayed hard- 
wood trunk, May 15-17, 1906, W. R. Maxon 588. 
DISTRIBUTION: Known only from the type locality. 
4. Fuscoporella coruscans Murrill, sp. nov. 
Effused, rigid, annual, 2-4 < 5-8 X 0.1-0.3 cm.; margin thin, ferruginous, becoming 
blackish and at times somewhat thick and elevated: context very thin, ferruginous; 
hymenium smooth, glistening, changing from fulvous to avellaneous with the direction of 
the light, fissured on drying; tubes oblique, cylindrical, regular, rigid, rather thick-walled, 
entire or dentate, 0.1-0.3 mm. long, 6 toa mm., ferruginous within, slightly flesh-colored 
externally when seen under a lens: spores smooth, subglobose, pale-ferruginous, copious, 
4-5; hyphae pale-ferruginous ; cystidia none. 
Type collected at Alto Cedro, Cuba, on decayed hardwood logs in a dense virgin forest, March 
20, 1905, FS. Harle & W. A. Murrill 473. 
DISTRIBUTION : Known only from the type locality. 
5. Fuscoporella mexicana Murrill, sp. nov. 
Irregularly effused, inseparable, coriaceous to rigid, 1 mm. thick; margin irregular, 
thin, adnate, narrowly sterile, ferruginous: context inconspicuous, ferruginous to fulvous; 
hymenium plane, ferruginous when young, fuliginous and cracking with age; tubes fulvous 
within, mouths regular, subcircular to angular, 5-6 to a mm., edges thick, entire: spores 
subglobose, smooth, ferruginous, copious, 3-4 #; hyphae ferruginous ; cystidia none. 
Type collected in Mexico, on dead wood, in 1891, Charles L. Smith. 
DISTRIBUTION : Known only from the type locality. 
6. Fuscoporella Shaferi Murrill, sp. nov. 
Broadly effused, seceding with age, irregular, corky to woody, rigid when dry, 1 mm. 
thick; margin undulate to irregular, thin, adnate, ferruginous, broadly sterile, reddish- 
brown with age: context conspicuous, ferruginous to fulvous; hymenium plane, even, 
grayish-umbrinous, ferruginous-tinted when young; tubes short, fulvous within, oblique, 
mouths irregular, very shallow, 6 to a mm., edges rather thin, uneven, sometimes dentate, 
with a tinge of flesh-color under a lens: spores subglobose, smooth, ferruginous, copious, 
3-4 w; hyphae ferruginous, 2-3 »; cystidia none. 
Type collected on Fergus Mountain, Montserrat, West Indies, on a decorticated trunk, Jan- 
uary 30, 1907, 7. A. Shafer. ; 
DISTRIBUTION : Known only from the type locality. 
16. FOMITIPORIA Murrill, gen. nov. 
Hymenophore resupinate, epixylous, perennial, inseparable, rigid: context thin, 
brown ; tubes brown, stratified, usually thick-walled and entire: spores globose to ellip- 
soidal, smooth, hyaline ; hyphae usually brown ; cystidia sometimes present. 
Type species, Fomitiporia Langloisit Murrill. 
