TROPICAL POLYPORES 



Including the pileate species occurring in Mexico, Central 

 America, southern Florida, the Bermudas, the West Indies, 

 and all other islands between North America and South America 

 with the exception of Trinidad, Tobago, and Curacao, whose 

 flora is essentially South American. 



POLYPORACEAE 



Hymenophore annual or perennial; context fleshy-tough, 

 corky, or woody; hymenium poroid or lamelloid, fleshy to woody, 

 never gelatinous. 



Hymenium porose. 



Hymenophore annual. 1 



Volva wanting. Tribe i. POLYPOREAE. 



Volva present. Tribe 2. VOLVATAE. 



Hymenophore perennial. l Tribe 3. FOMITEAE. 



Hymenium furrowed. * Tribe 4. DAEDALEAE. 



Tribe i. POLYPOREAE. Hymenophore variable in size and shape, fleshy- tough 

 to corky, annual, sometimes reviving; surface encrusted or anoderm, glabrous 

 or hairy, zonate or azonate; context fibrous, rarely punky, variously colored; 

 tubes cylindric, sometimes splitting into teeth, usually thin-walled; spores 

 rounded or oblong, brown or hyaline; cystidia frequently present; surface of 

 pileus never conidia-bearing; stipe often present, variously attached. 

 Context white. 



Hymenophore sessile. 



Tubes hexagonal, arranged in radiating rows; context 



thin. 13. HEXAGONA. 



Tubes alveolar; context thin, dry; surface zonate. 27. FAVOLUS. 

 Tubes mostly shallow, marginal and obsolete; hy- 

 menium hydnoid or irpiciform at a very early 

 stage. i. IRPICIPORUS. 



1 Apparent or real exceptions occur at times in Earliella, Coriolopsis, and Hapa- 

 lopilus. 



* Exceptions occur in Fomitella, Ganoderma, and Amauroderma. Porodaedalea 

 is closely allied to the Daedaleae. 



3 Cerrena shows an irpiciform hymenium at maturity, much resembling species 

 of Coriolus. Daedalea and Gloeophyllum sometimes show poroid forms that are 

 very confusing. 



I 



