Family 5. POLYPORACEAE 
By WILLIAM ALPHONSO MURRILL 
Hymenophore annual or perennial : context fleshy-tough, corky, or woody ; 
hymenium poroid or lamelloid, fleshy to woody, never gelatinous. 
Hymenophore entirely resupinate, never reflexed. Tribe 1. PORTEAE. 
Hymenophore normally pileate, often effused-reflexed, sometimes varying to resupinate. 
Hymenium porose. ‘ 
Hymenophore annual.1 
Hymenophore perennial.? Tribe 3, FOMITEAE. 
Hymenium furrowed.3 Tribe 4. DAEDALEAE. 
Tribe 1. PoRIEAE. Hymenophore entirely resupinate, fleshy-tough to corky, annual or perennial: 
context fibrous to punky, usually very thin, variously colored ; tubes usually cylindrical, some- 
times irpiciform and rarely somewhat daedaleoid : spores brown or hyaline; cystidia often present. 
Hymenophore white or bright-colored. (SEE VOLUME 8; not yet published.) 
Hymenophore brown. 
Hymenophore annual ; tubes not stratified. 
Hymenium irpiciform. 13 
Tribe 2, POLYPOREAE. 
. HYDNOPORIA. 
Hymenium normally poroid. 
Spores hyaline. 14. Fuscoporia. 
Spores brown. 15. FUSCOPORELLA. 
Hymenophore perennial ; tubes stratified. 
Spores hyaline. 16. FOMITIPORIA. 
Spores brown. 17. FOMITIPORELLA, 
Hymenophore black. 
Hymenophore annual. 
Spores hyaline. : 18. TINCTOPORIA. 
Spores brown. 19, MELANOPORELLA. 
Hymenophore perennial. 20. MELANOPORIA. 
Tribe 2, POLYPOREAE. Hymenophore variable in size and shape, fleshy-tough to corky, annual, 
sometimes reviving and rarely perennial, especially in the tropics ; surface encrusted or anoderm, 
glabrous or hairy, zonate or azonate: context fibrous, rarely punky, variously colored ; tubes 
cylindrical, sometimes splitting into teeth, usually thin-walled: spores rounded or oblong, 
brown or hyaline; cystidia frequently present ; surface of pileus never conidium-bearing: stipe 
often present, variously attached. 
Context white. 
Hymenophore sessile. 
Tubes hexagonal, arranged in radiating rows; context thin. 35. HEXAGONA, 
Tubes alveolar ; context thin, dry; surface zonate. 55. FAvoLus. 
Tubes mostly shallow, marginal and obsolete; hymenium hydnoid 
or irpiciform at a very early stage. 21. IRPICIPORUS: 
Tubes normally poroid, sometimes irpiciform from the rupture of 
the dissepiments at maturity. 
Hymenium at length separating smoothly from the context. 31. PIPTOPORUS. 
Hymenium not separating as above. 
Pileus very soft, spongy and elastic throughout. 
Hymenophore small; tubes large, not fragile. 25. SPONGIPORUS. 
Hymenophore of immense size; tubes smail, fragile when 
d 
Ty. 26. TOMOPHAGUS. 
Pileus more or less firm, flexible or rigid. 
Context duplex, spongy above, firm’ below ; surface sodden 
and bibulous. 28, 
Context not duplex as above. 
Pileus fleshy-tough to woody and rigid. 
Surface anoderm, rarely zonate. 
Hymenium more or less smoke-colored at maturity. 29. BJERKANDERA. 
Hymenium white or pallid. 
Context fleshy to fleshy-tough, friablewhendry. 27. TyROMYCES. 
Context punky to corky, not friable when dry. 30. TRAMETES. 
. SPONGIPELLIS. 
! Apparent or real exceptions occur at times in Larliella corrugata, Pycnoporus cinna- 
barinus, Coriolopsis subglabrescens, Hapalopilus giluus, and Hapalopilus licnoides. 
2Exceptions occur in Ganoderma spp., Amauroderma spp., Elfvingia lobata, and 
Fomitella supina. Porodaedalea is closely allied to the Daedaleae. 
8 Cerrena shows an irpiciform hymenium at maturity, much resembling species of 
Coriolus. Daedalea and Gloeophyllum sometimes show poroid forms that are very 
confusing. 
VOLUME 9, Part 1, 1907] 1 
