7o TROPICAL POLYPORES 



8. INONOTUS FRUTICUM (Berk. & Curt.) Murrill 



Pileus soft, spongy, thin, dimidiate or vertically attached, 

 1-2.5 cm. broad, 2-5 mm. thick; surface spongy- tomentose, 

 azonate, flavous to fulvous; margin thin and undulate, becoming 

 blackish when bruised; context flavous to ferruginous, spongy, 

 1-3 mm. thick, with a very thin, firm, darker layer next to the 

 tubes; tubes short, ferruginous to fulvous, about I mm. long, 

 mouths angular to irregular, 3 to a mm., edges thin, toothed, 

 ferruginous to fuliginous, hoary when young; spores subglobose, 

 smooth, pale-ferruginous, 3-4 n. 



Occasional on living twigs of orange and oleander in Cuba. 



9. INONOTUS PUSILLUS Murrill 



Pileus sessile, convex, flabelliform, tapering to a narrow base, 

 erumpent from lenticels, 2 X 2 X 0.5-1 mm. ; surface ferruginous 

 to fulvous, silky-striate, subzonate, shining, margin pallid, acute, 

 often depressed; context thin, fibrous, ferruginous; tubes um- 

 brinous, comparatively large, 2-4 to a mm., polygonal, becoming 

 irregular, much exceeding in length the thickness of the context, 

 mouths at first whitish-pulverulent, dissepiments thin, entire; 

 spores ovoid, 5 X 3.5 n, pale-ferruginous. 



Found once on dead branches of Jacguinia at Manzanillo, 

 Mexico. 



10. INONOTUS RADIATUS (Sow.) P. Karst. 



Pileus corky to woody, imbricate, confluent, sessile, umbonate 

 behind, especially when young, 3-5 X 6-9 X 0.5-1 cm.; surface 

 radiate-rugose to very uneven, minutely velvety to glabrous, 

 fulvous to ferruginous-fuscous or almost black behind; margin 

 thin, pallid, undulate to lobed; context subzonate, ferruginous 

 to dark-fulvous, 1-3 mm. thick; tubes slender, grayish-umbrinous 

 to fulvous, about 5 mm. long, mouths angular, somewhat ir- 

 regular, 3-5 to a mm., edges whitish at first, becoming dark- 

 fulvous with age, glistening, thin, fimbriate to lacerate; spores 

 ellipsoid, luteolous, 4-6 X 3-4 M- 



Reported twice from Cuba by Wright. 



33. PHAEOLUS Pat. 



Hymenophore large, irregular, annual, spongy to corky, 

 epixylous; stipe simple, variously attached, wanting at times; 

 surface of pileus anoderm, hispid; context ferruginous; tubes 

 irregular, thin- walled; spores ellipsoid, smooth, hyaline; cystidia 

 none. 



