1918] 



BURT THELEPHORACEAE OF NORTH AMERICA. X 



311 



Fig. 1 



H. Cacao. 



Section X 68. From type. 



brown (3) ; in structure 600 ix thick, composed of a setigerous 



layer 90 /x broad and of a hyphal layer 500 /i broad, having 



densely arranged, colored hyphae 4^ 



H in diameter, running longitudinally, 



curving on the one side into the 



hymenium and on the other into the 



surface of the pileus ; setae ventricose 



at base, 18x4^5 n, densely crowded 



together in all parts of the broad 



setigerous layer; spores hyaline, 



even, 4x3 /z. 



Fructifications 3^ cm. broad, 3 cm. long. 



On dead wood. Jamaica, Cuba, and Venezuela. July. Rare. 



By the kindness of Sir David Prain, I have been able to 

 study a portion of the type of H. Cacao collected in the Khasia 

 Mountains, India ; it has the hymenium olive-drab now but is 

 of the same form and structure as American specimens. The 

 American specimens are a rich tobacco-brown with darker 

 hymenium. This species is noteworthy by having the setae 

 densely crowded together through a zone 90 /x broad. The 

 collection by Earle, 406, cited below, seems referable to H. 

 Cacao on account of the color of the hymenium and structure 

 in section but it is wholly resupinate. 



Specimens examined: 

 India: Khasia Mts., Dr. Hooker, portion of type comm. by 



Sir David Prain (in Mo. Bot. Gard. Herb., 55559). 

 Jamaica: Cinchona, F. S. Earle, 406, comm. by N. Y. Bot. 



Gard. Herb., and W. J. Robinson (in N. Y. Bot. Gard. Herb., 



and in Mo. Bot. Gard. Herb., 55481). 

 Cuba: C. Wright, 526 (in Curtis Herb.). 

 Venezuela: Fendler (in Curtis Herb.). 



4. H. aspera Berk. & Curtis, Linn. Soc. Bot. Jour. 10 : 334. 

 1868; Sacc. Syll. Fung. 6 : 592. 1888; Massee, Linn. Soc. Bot. 

 Jour. 27 : 100. 1890. 



An Hydnum resupinatum Swartz, Prodr. 149. 1788; Fl. 

 Ind. Occ. 3:1921. 1806?— An Thelephora setosa Swartz in 

 Berkeley, Ann. & Mag. Nat. Hist. 10 : 381. pi. 11. f. 10. 1842? 

 Not Hymenochaete setosa Berk. & Curtis, Grevillea 1 : 165. 



