SOUTHERN POLYPORES 39 



3. INONOTUS DRYOPHILUS (Berk.) Murrill 



Pileus thick, unequal, unguliform, subimbricate, rigid, 7-8 

 X 10-14 X 2-3 cm.; surface hoary-flavous to ferruginous- 

 fulvous, becoming scabrous and bay with age; margin thick, 

 usually obtuse, sterile, pallid, entire or undulate; context fer- 

 ruginous to fulvous, zonate, shining, 3-10 mm. thick; tubes 

 slender, concolorous with the context, about I cm. long, mouths 

 regular, angular, 2-3 to a mm., glistening, whitish-isabelline to 

 dark-fulvous, edges thin, entire to toothed; spores subglobose, 

 smooth, deep-ferruginous, 6-7 /JL; cystidia scanty and short. 



Occasional throughout on living or dead oak trunks, causing 

 serious decay. 



4. INONOTUS TEXANUS Murrill 



Pileus ungulate, attached by the vertex, 3 X 5 X 2-4 cm.; 

 surface hoary-isabelline to fuliginous, finely tomentose, con- 

 centrically and radially rimose, especially with age, the separated 

 areas imbricate; margin thick to very obtuse, pallid; context 

 corky, narrowly concentrically zonate, fulvous to umbrinous, 

 iridescent, I cm. thick in young specimens, very thin in old ones; 

 tubes 1-3 cm. long, 2-3 to a mm., fulvous to tawny-chestnut, 

 mouths polygonal, pallid to fulvous, darker with age, edges thin, 

 entire; spores ovoid, smooth, very dark-brown, i-2-guttulate, 

 10 X SM- 



Occasional on trunks of living mesquite trees in Texas. 



5. INONOTUS JUNIPERINUS Murrill 



Pileus firm, corky, sessile, narrowly attached, flabelliform, 

 concave above, convex below, 6X5X1 cm.; surface glabrous, 

 somewhat rugose, subzonate near the margin, fulvous-ferruginous, 

 slightly marked with black; margin very thin, broadly sterile, 

 glabrous, entire to somewhat eroded, fragile, pure-black in 

 dried specimens; context fleshy-tough, fragile when dry, sub- 

 shining, pale-ferruginous to umbrinous-fulvous, 5-7 mm. thick; 

 tubes short, very fragile, fulvous within, 1-2 mm. long, puncti- 

 form near the margin, mouths angular, 4 to a mm., glistening, 

 chestnut-colored to black, edges thin, entire to fimbriate-dentate; 

 spores globose, smooth, dark-brown, 3.5-5 M- 



Occasional on roots of red cedar in Texas. 



6. INONOTUS PERPLEXUS (Peck) Murrill 



Pileus spongy-fleshy, fibrous, sessile, dimidiate to flabelliform, 

 often narrowly attached, usually imbricate, somewhat laterally 



