TROPICAL POLYPORES 81 



5. PYROPOLYPORUS ROSEOCINEREUS Murrill 



Pileus applanate to compressed-ungulate, often vertically 

 attached, 5-8 X 7-14 X 2-4 cm.; surface tomentose, becoming 

 glabrous, horny-encrusted, repeatedly zonate-sulcate, fulvous to 

 reddish-brown; margin acute, undulate, ferruginous, tomentose; 

 context woody, very thin, light-fulvous, 1-2 mm. thick; tubes 

 indistinctly stratified, 1-2 mm. long each season, fulvous within, 

 mouths circular, very minute, 5-6 to a mm., edges obtuse, 

 entire, roseocinereous to smoky-gray; spores globose to ovoid, 

 smooth, hyaline, 5-6 /x; cystidia none. 



Found a few times on dead wood in Cuba, Jamaica, and Costa 

 Rica. 



6. PYROPOLYPORUS INFLEXIBILIS (Berk.) Murrill 



Pileus convex above, plane below, somewhat compressed- 

 ungulate, 7 X 12 X 5 cm.; surface glabrous, horny-encrusted, 

 dark-brown, concentrically sulcate, marked with narrow black 

 concentric lines; margin rounded, yellowish -brown, sterile; con- 

 text hard, concentrically banded, ferruginous, 2 cm. thick behind; 

 tubes indistinctly stratified, 0.5-1 cm. long each season, 5-6 to a 

 mm., drab-colored within, mouths polygonal, concolorous, edges 

 thin, acute, entire; spores globose to ovoid, smooth, thin-walled, 

 hyaline, 3.5-4 X 4 n', cystidia none. 



Known from a few collections on dead trunks in the mountains 

 of Jamaica, as well as in Brazil. 



7. PYROPOLYPORUS CALKINSII Murrill 



Pileus woody throughout, ungulate, 10 X 10 X 10 cm.; 

 surface glabrous, dark-brown to black, marked with rather 

 shallow concentric furrows, the crust thin, horny, never rimose; 

 margin rounded, concolorous with the hymenium; context very 

 hard, woody, fulvous, I cm. thick; tubes in many indistinct layers, 

 slender, minute, 7 to a mm., fulvous, mouths nearly circular, 

 edges obtuse, entire; spores ovoid, smooth, hyaline, 6-8 X 4-5 n- 



Known from a few collections on living trunks of live oak and 

 black oak in Florida and North Carolina, and doubtless occurring 

 on live oak in southern Florida. Fomitiporia dryophila may be 

 a resupinate form. 



40. FULVIFOMES Murrill 



Hymenophore large, perennial, epixylous, sessile, ungulate or 

 applanate; surface sulcate, usually anoderm and often rough or 



