4S0 Murrill: Polyporaceae of North America 



13. Cubamyces gen. nov. 



Type : Polyponis aibcnsis Mont. 



Hymenophore large, annual, epixylous, sessile, thin, dry, con- 

 chate ; surface pelli'culose, glabrous, normally azonate ; context 

 white or yellowish, thin, homogeneous, very soft and elastic ; 

 hymenium concolorous, tubes small and regular, rather thick- 

 walled, firm and corky, mouths entire; spores smooth, hyaline. 



Cubamyces cubensis (Mont.) 



Polyponis aibensis Mont. Ann. Sci. Nat. II. Bot. 8 : 364. 1837; 



PI. Cell. Cuba 404. //. 16. /. j. 1842. 



Originally described from plants collected near Havana, Cuba, 

 by wSagra, It seems especially abundant in Cuba, but occurs also 

 in southern Florida and Central America. 



Cuba, Undertvood & Eaide j/j, 5^^, ^gd, iiii ^ 1204., 1443, 

 ij68^ Earle & Murrill 140, jjy, 534, 414 ; Florida, Lloyd ; Nica- 

 ragua, Smith. 



Species inquirendae 



A 



POLYPORUS HAVANNENSIS B. & C. Jour. LiuH. Soc. Bot. 10 I 



310. 1868. Described from specimens collected by Wright on 

 dead wood in Cuba as follows : 



''Pileo dimidiato convexo zonato fulvo-ochraceo e pubescente 

 glabro radiato-ruguloso, margine leviter pulvinato sterili pubes- 

 cente ; hymenio pallido, poris parvis subrotundis acie obtusis, 

 Pileus 2 inches wide, I inch long ; pores y^-jj- inch in diameter. 

 Allied to P. ambus, B[erk]., but with larger pores.'' 



This species appears to be very near to C. cubensis, 



14. PORONIDULUS Murr. Bull. Torrey Club 31 : 425. 1904 

 Type : Boletus conchifer Schw. 



Hymenophore annual, tough, sessile, epixylous, at first sterile 

 and cup-like, the fertile portion developing from the sterile ; con- 

 text white, fibrous, tubes short, thin-walled, mouths polygonal ; 

 spores ellipsoidal, smooth, hyaline. 



Species : P. conchifer (Schw.) Murr. [See Bull. Torrey Club 

 31 : 425, 426. 1904. 



15. CORIOLUS Quel. Ench. Fung. 175. 1886. 

 Type : Polyponis zonatus Fr. 

 Hanscnia Karst. Medd. Soc. Faun, et Fl. Fenn. 5: 39. 1879. 

 i^ot HanscnialMxcz. 1844.) ly^e: Boletus hirsutiis\Nu\i. 



