SOUTHERN POLYPORES 43 



Context duplex, soft above and woody below; hymenium 



beset with cystidia. 4. C. tomentosa. 



Context homogeneous; hymenium free from cystidia. 



Pileus ferruginous to fulvous, 5 cm. in diameter; surface 



finely tomentose; stipe swollen and soft at the base. 5. C. obesa. 

 Pileus darker, fulvous to chocolate-colored, 10 cm. in 

 diameter; surface rough and shaggy; stipe scutate 

 and firm at the base. 6. C. Memmingeri. 



I. COLTRICIA CINNAMOMEA (Jacq.) Murrill 



Pileus coriaceous, thin, circular, umbilicate, sometimes deeply 

 so, 1-4 cm. in diameter, 1-2 mm. thick; surface bright-cinnamon, 

 cinereous, shining, strigose-striate, zonate; margin undulate to 

 slightly lobed, fimbriate, concolorous; context membranous, 

 concolorous, less than a mm. thick; tubes pale-umbrinous 

 within, 1-2 mm. long, slightly decurrent, mouths rather large, 

 angular, ferruginous to fulvous, 2-3 to a mm., edges thin, fimbri- 

 ate-dentate, collapsing with age; spores ellipsoid, pale-yellowish- 

 brown, smooth, 6-8X4-6;*; stipe central, velvety, reddish- 

 fuscous, nearly equal, 2-4 cm. long, 3-5 mm. thick. 



Common throughout on mossy soil or wood almost reduced to 

 humus. 



2. COLTRICIA PERENNIS (L.) Murrill 



Pileus coriaceous, circular, infundibuliform, 3-6 cm. broad, 

 1.5-3 mm. thick; surface zonate, short-tomentose, substriate, 

 ferruginous to cinereous, the zones sometimes glabrous and 

 chestnut-colored; margin very thin, entire to lacerate, inflexed 

 when dry; context very thin, concolorous, scarcely a mm. thick; 

 tubes short, grayish-umbrinous within, 1-3 mm. long, mouths 

 small, angular, 2-4 to a mm., whitish when young, becoming 

 fulvous, edges thin, dentate to lacerate, soon collapsing; spores 

 ovoid, smooth, pale-yellowish-brown, 4-6 X 2-3.5 M; stipe bul- 

 bous and often united with that of neighboring plants at the 

 base, tapering upward, velvety, ferruginous to fulvous, solid, 

 corky, 3-5 cm. long, 2-5 mm. thick. 



Occasional in the mountains of North Carolina on exposed 

 or burnt soil in woods, and possibly ranging as far southward as 

 Alabama. 



3. COLTRICIA FOCICOLA (Berk. & Curt.) Murrill 



Pileus membranous, circular, umbilicate, 3-6 cm. in diam- 

 eter, 0.5-1 cm. thick; surface velvety, cinnamon to cinereous, 

 multizonate; margin thin, entire or undulate; context very thin, 



