TROPICAL POLYPORES 57 



mm., elongate and irregular in larger specimens at times, muri- 

 nous to umbrinous, edges thin, firm, entire. 



Frequent on dead wood in Cuba, Jamaica, Santo Domingo, 

 St. Croix, and Barbados. 



5. CORIOLOPSIS CROCATIFORMIS Murrill 



Pileus coriaceous, flaccid, flexible, elastic, effused-reflexed, sub- 

 imbricate, more or less laterally connate, the reflexed portion 

 dimidiate or laterally elongate, conchate, 1.5-2 X 3-7 X 0.2-0.5 

 cm.; surface very irregular and uneven, tomentose to spongy, 

 somewhat sulcate, fulvous; context very thin, punky, fulvous; 

 tubes 3-5 mm. long, grayish-fulvous within; mouths large, 

 angular, somewhat irregular, 2 to a mm., glistening, fulvous- 

 umbrinous, edges thin, flexible, entire or slightly toothed; spores 

 subglobose, smooth, 3.5 /z. 



Collected once on dead wood near Oaxaca, Mexico. 



6. CORIOLOPSIS TAYLORI Murrill 



Pileus corky, rigid, subimbricate, dimidiate, conchate, 3-5 X 

 4-7 X 0.5-1.5 cm.; surface zonate, roughly hispid to scabrous, 

 aculeate behind, somewhat sulcate, finely radiate-striate, sub- 

 shining and chestnut-colored in zones near the margin and opaque 

 and isabelline-fulvous behind, or entirely multizonate and sub- 

 shining; margin thin, pallid, tomentose, entire or undulate; 

 context isabelline, distinctly zonate, almost woody, 0.3-1 cm. 

 thick; tubes slender, 2-4 mm. long, circular, umbrinous within, 

 mouths circular, regular, minute, 5-7 to a mm., grayish-um- 

 brinous to fuliginous, edges entire, becoming rather thin, but 

 firm and even. 



Frequent on dead logs in Panama, Honduras, Cuba, Porto 

 Rico, St. John, and Jamaica. 



7. CORIOLOPSIS CIRRIFER (Berk. & Curt.) Murrill 



Pileus dimidiate, sessile, subimbricate at times, usually con- 

 chate, 4-8 X 7-10 X 1-2 cm.; surface zonate, at least when 

 young, isabelline to fulvous or bay, becoming nearly fuliginous 

 when old, conspicuously and very densely covered with long, 

 branched hairs which are rather soft and yielding to the touch 

 and do not disappear with age; margin entire, isabelline, rather 

 thick and often obtuse; context isabelline, corky, 5-8 mm. thick; 

 tubes slender, pale-avellaneous within, equaling the thickness 

 of the context, mouths minute, circular, 4-5 to a mm., the edges 

 thick, entire, pallid to umbrinous. 



