[Vol. 5 

 338 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



lateral confluence; resupinate portions about 2 cm. in diam- 

 eter present in one collection. 



On rotting f rondose wood and logs in dense forests, caus- 

 ing a pocketed rot. Cuba and Porto Rico. February and 

 March. Frequent. 



H. cuhensis is related to H. reflexa in structure, but its fruc- 

 tifications are smaller and thinner than those of the latter, 

 and are nearly always umbonate-sessile or dimidiate only 

 very rarely reflexed and do not become glabrous and dark- 

 colored, with resemblance to H. rubiginosa. Such ample col- 

 lections of H. cuhensis have been made that it seems as though 

 this species should have been described heretofore, but I have 

 failed to find anything in earlier work to which these speci- 

 mens may be referred. 



Specimens examined: 

 Cuba: Alto Cedro, L. M. Underwood (& F, S, Earle, 1491, type, 



and 1565 y and Earle & Murrill, 456, all comm. by N. Y. Bot. 



Gard. Herb.; La Gloria, Camagiiey, J. A. Shafer, 739 (in 



N. Y. Bot. Gard. Herb., and in Mo. Bot. Gard. Herb., 55549) ; 



Managua, Havana Province, Earle d Murrill, 21, comm. by 



N. Y. Bot. Gard. Herb. 

 Porto Rico: Monte Cerrote, near Adjuntas, N. L. Britton & 



S, Brown, 5479 (in N. Y. Bot. Gard. Herb., and in Mo. Bot. 



Gard. Herb., 55550). 



16. H. ungulata Burt, n. sp. Plate 17, fig. 17. 



Type: in Mo. Bot. Gard. Herb, and N. Y. Bot. Gard. Herb. 



Pileus very hard, tuberculate-ungulate, sessile, decurrent, 

 triangular in section, with the upper surface black, crust-like, 

 glabrous, the margin obtuse; hymenium oblique, pruinose, 

 between white and pearl-gray; in structure 3 mm. thick, no 

 intermediate layer found, composed of a setigerous layer 

 1 mm. or more thick, of layered structure, and of the stony 

 pseudoparenchymatous crust; setae 75x9 n, tapering from 

 the base, very abundant, starting from all parts of the setiger- 

 ous layer; no spores found. 



Pileus 3 mm. long, 5-12 mm. wide, 2-3 mm. thick. 



On bark of dead standing trunk or stump in virgin forest, 

 5000 ft. altitude. Mexico. December. 



