360 MURKILL : POLYPORACEAE OF NORTH AMERICA 



brown, firm and leathery below, very loosely fibrous and darker 



above ; tubes short, thin-walled, mouths polygonal, at times be- 

 coming labyrinthiform : spores smooth, hyaline. 



Species : T. trichomallum (Berk. & Mont.) Murr. [see Bull. 



Torrey Club 31 : 608, 609. 1904]. 



8. Flaviporus gen. no v. 



Type : Poly poms rufoflavus B. & C. Jour. Linn. Soc. Bot. 10 : 

 310. 1868. 



Hymenium annual, often reviving, epixylous, sessile, dimidiate, 

 imbricate ; surface encrusted, glabrous : context thick, woody, 

 brown; tubes thin-walled, minute, regular: spores smooth, hyaline. 



Synopsis of the North American species 



Hymenium pale lemon-yellow. I. F. rtifoflamis. 



Hymenium deep orange-colored. 2. F. crocitinctus. 



i. Flaviporus rufoflavus (B. & C.) 

 Polypoms rufoflavus B. &. C. Journ. Linn. Soc. Bot. 10 : 310. 



1868. 

 Polypoms Braunii Rabh. Rabenhorst's Fung. Europ. Exsic. 



no. 2005. 



Described from Wright's collections in Cuba. Known also 

 from Venezuela through Fendler, and from Mexico through the 

 collections of C. L. Smith. Plants later described as P. Braunii 

 were found on palms, which were doubtless brought from tropical 

 America. The name assigned by Berkeley refers to the red sur- 

 face and bright-yellow hymenium of the plant. 



2. Flaviporus crocitinctus (B. & C.) 

 Polypoms crocitinctus B. & C. Journ. Linn. Soc. Bot. 10 : 3 1 1. 1 868. 

 The type, collected in Cuba by Wright, is well preserved at 

 Kew. The species has not since been collected. 



9. POGONOMYCES Murr. Bull. Torrey Club 31: 609. 1904 

 Type: Pogonomyces Jiydnoidcs (Sw.) Murr. 



Hymenophore annual, epixylous, dimidiate-sessile to flabelli- 

 form, thickly covered with rigid hairs : context dark-brown, punky ; 

 tubes short, thick-walled, light brown, mouths small, circular: 

 spores smooth, hyaline. 



Species : P. livdnoidcs (Sw.) Murr. [see Bull. Torrey Club 



31 : 609, 610. 1904]. 



