TROPICAL POLYPORES 59 



10. CORIOLOPSIS CAPERATIFORMIS Murrill 



Pileus slightly flexible to rigid, dimidiate, broadly attached, 

 decurrent, applanate or slightly convex, 2.5-3.5 X 4-6 X 0.2-0.7 

 cm.; surface shaggy with coarse, fulvous-bay hairs 5 mm. in 

 length, which gradually wear away with age and allow the fulvous 

 or bay, zonate-sulcate surface to appear; margin undulate or 

 lobed, thin, hairy to finely tomentose; context thin, firm, almost 

 woody, fulvous; tubes 1.5-2.5 mm. long, avellaneous-umbrinous 

 within, mouths circular or irregular, not angular, 3-5 to a mm., 

 edges rather thick, firm, entire, avellaneous to umbrinous. 



Collected three times on dead wood in a moist virgin forest 

 near Motzorongo, Mexico. 



ii. CORIOLOPSIS VITTATA (Ellis & Macbr.) Murrill 



Pileus very thin, flexible, coriaceous, laterally connate, effused- 

 reflexed, 2-3 X 6-10 cm., the reflexed portion 0.5-1 cm. long, 

 2 to many cm. broad, scarcely a mm. thick; surface tomentose, 

 zonate, fulvous to bay-black, the zones nearly glabrous; margin 

 very thin, sterile, isabelline, undulate to lobed, deflexed at times; 

 context extremely thin, less than half a mm., tawny-bay, mem- 

 branous; tubes short, scarcely a mm. long, whitish-cinereous 

 within, mouths large, regular, subhexagonal, 2 to a mm., edges 

 thin, firm, subentire to fimbriate or slightly lacerate, cinereous 

 or grayish to umbrinous. 



Occasional on fallen dead deciduous branches in Mexico, 

 Nicaragua, and Jamaica. 



12. CORIOLOPSIS VIBRATILIS (Berk. & Curt.) Murrill 



Pileus resupinate to shortly reflexed, thin, corky, 1-3 mm. 

 thick; surface finely tomentose, gilvous-umbrinous, azonate, 

 anoderm; margin sterile, rather thick, entire or undulate; con- 

 text membranous, I mm. in diameter, soft-corky, purplish- 

 umbrinous; tubes short, 1-2 mm., avellaneous within, mouths 

 minute, regular, hexagonal, glistening, stuffed when young, 7-8 

 to a mm., edges very thin, entire or slightly toothed, purplish- 

 umbrinous. 



Found once on dead wood in Cuba. 



13. CORIOLOPSIS NIGROCINEREA Murrill 



Pileus attached by a scutate disk or small tubercle, dimidiate to 

 circular, subimbricate, thin, coriaceous, 2-3 X 3-5 X 0.2-0.5 

 cm.; surface hispid-tomentose, zonate, concentrically striate, 



