50 SOUTHERN POLYPORES 



3. PYROPOLYPORUS CALKINSII Murrill 



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

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

 shallow concentric furrows, 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, hyaline, with thick, smooth, 

 pale-ferruginous wall, 3-5 X 5-7 M- 



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

 black oak in Florida and North Carolina. 



4. PYROPOLYPORUS CONCHATUS (Pers.) Murrill 



Pileus conchate, broadly effused and often entirely resupinate, 

 1-5 X 7-10 X 0.5-1.5 cm.; surface rough, tomentose, irregularly 

 sulcate, anoderm, brown to black, becoming thinly encrusted and 

 slightly rimose with age; margin acute, undulate, ferruginous to 

 fulvous, tomentose; context woody, thin, fulvous, 1-3 mm. 

 thick; tubes indistinctly stratified, 1-2 mm. long each season, 

 fulvous, mouths circular, 5-6 to a mm., edges obtuse, ferruginous 

 to fulvous; spores globose, smooth, hyaline, 4-5 /*; cystidia dark- 

 brown, ventricose, 15-30 X 7-9 /x. 



Occasional throughout on decaying deciduous trunks. 



5. PYROPOLYPORUS LANGLOISII Murrill 



Pileus corky, fan-shaped, attached by a narrow base, often 

 depressed behind, 8-13 X 10-25 X 0.3-1.5 cm.; surface at first 

 anoderm, soft, clothed with brown tomentum, many times con- 

 centrically sulcate, at length glabrous, rough, indurate, black, 

 marked with numerous shallow furrows; margin velvety, brown, 

 thin, acute, undulate or slightly lobed; context soft to corky, 

 indurate in age, deep-brown, 0.2-0.3 cm. thick; tubes reviving, 

 distinctly stratified, 0.2-0.5 cm. long each season, 8-9 to a mm., 

 brown, mouths polygonal, concolorous, edges thin at maturity; 

 spores globose, smooth, hyaline, 3 p. 



Occasional in Louisiana at the base of dead or dying hawthorn 

 trees, and probably occurring also in Florida. 



34. FULVIFOMES Murrill 



Hymenophore large, perennial, epixylous, sessile, ungulate or 

 applanate; surface sulcate, usually anoderm and often rough or 

 rimose; context woody or punky, brown, rarely dark-red; tubes 



