SOUTHERN POLYPORES 31 



hairs, ochraceous or reddish-orange, soon fading, brownish 

 behind; margin ochraceous, sterile, tumid, becoming thinner at 

 maturity; context melleous, tough, watery, elastic, rigid when 

 dry, conspicuously marked with sordid zones, odor strong but 

 not characteristic; tubes 5-10 mm. long, luteous-orange to 

 bright-orange when fresh, becoming dark and resinous on drying, 

 the mouths small, regular, concolorous, 4-5 to a mm., dissepi- 

 ments thin, minutely fimbriate; spores 3-4 X 2-3 p. 



Frequent in North Carolina on much-decayed oak and chest- 

 nut logs. Probably not distinct from P. croceus Pers. of Europe. 



19. LAETIPORUS Murrill 



Hymenophore annual, epixylous, fleshy, anoderm, cespitose- 

 multiplex; context cheesy to fragile, light-colored; tubes thin- 

 walled, fragile, bright-yellow, mouths irregularly polygonal; 

 spores smooth, hyaline. 



i. LAETIPORUS SPECIOSUS (Batt.) Murrill 



Hymenophore cespitose-multiplex, 30-60 cm. broad; pileus 

 cheesy, not becoming rigid, reniform, very broad, more or less 

 stipitate, 5-15 X 7-20 X 0.5-1 cm.; surface finely tomentose to 

 glabrous, rugose, anoderm, subzonate at times, varying from 

 lemon-yellow to orange, fading out with age; margin thin, fer- 

 tile, concolorous, subzonate, finely tomentose, undulate, rarely 

 lobed; context cheesy, very fragile when dry, yellow when fresh, 

 usually white in dried specimens, 3-7 mm. thick; tubes annual, 

 2-3 mm. long, sulfur-yellow within, mouths minute, angular, 

 somewhat irregular, 3-4 to a mm., edges very thin, lacerate, 

 sulfur-yellow, the color fairly permanent in dried specimens; 

 spores ovoid, smooth or finely papillate, 6-8 X 3-5 M- 



Common throughout on living trunks of all our deciduous 

 and evergreen trees, causing a very serious heart-rot. It is one 

 of the best edible fungi. 



20. CERRENELLA Murrill 



Hymenophore thin, effused-reflexed, annual, epixylous; surface 

 brown, zonate, anoderm, margin thin; context thin, coriaceous, 

 brown; hymenium at first poroid, very soon becoming irpiciform, 

 the teeth irregular and compressed; spores smooth, hyaline. 



Hymenium ferruginous, unchanging. i. C. Ravenelii. 



Hymenium olivaceous, becoming cinereous. 2. C. farinacea. 



