[Vol. 5 

 352 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



tinguished from the latter species by the somewhat sulphur- 

 yellow margin and subiculum which forms a broad hyphal 

 layer destitute of setae between the subhymenium and the sub- 

 stratum ; the spores of H, epichlora are shorter than those of 

 H. corrugata and the setae are fewer and smaller. 



Specimens examined: 

 Exsiccati: Ravenel, Fungi Car. 5 : 24, type distribution. 

 Alabama: Peters y 6118 (in Kew Herb.), and in Ravenel, 



Fungi Car. 5 : 24. 



Louisiana: Abita Springs, A. B. Langlois, 2647 to Ellis ^ type 

 of Rymenochaete asperata (in N. Y. Bot. Gard. Herb., and 

 in Mo. Bot. Gard. Herb., 55491) ; Baton Rouge, Edgerton S 

 Humphrey y comm. by C. J. Humphrey, 5727; St. Martin- 

 ville, A. B. LangloiSf al, am. 



Mexico: Jalapa, W. A. d Edna L. MurrUl, 338, 344, 345 

 (in N. Y. Bot. Gard. Herb., and in Mo. Bot. Gard. Herb., 

 54480, 54460, and 54461). 



25. H. dura Berk. & Curtis, Linn. Soc. Bot. Jour. 10 : 334. 

 1868; Cooke, Grevillea 8 : 147. 1880; Sacc. Syll. Fung. 6 : 596. 



1888 ; Massee, Linn. Soc. Bot. Jour. 27 : 

 105. 1890. 



Type : in Kew Herb, and Curtis Herb. 



^"^^^^^^^^B Fructifications resupinate, orbicular, 



^:i^^^^^^ rigid when dry, spongy when moistened, 



'^S^^S^i^^-^ drying between wood-brown and Sac- 



.^^S^^^^^^^S" cardo ^s umber, the margin thick, obtuse, 



paler than the hymenium; in structure 

 600-700 jLt thick, with the intermediate 

 layer bordered on each side by a narrow, 

 dense, dark zone, that on the under side 

 ^^* connecting the intermediate layer with 



Section X 68. From type. ^ dense hyphal layer 100 f, broad, 



situated on the substratum; hyphae of 

 intermediate layer baryta-yellow, 2 /li in diameter, longitu- 

 dinally arranged, somewhat loosely interwoven; setae 30-36 

 X5-6 fjLy scattered between the hair-like paraphyses which 

 they exceed but slightly, terminating in slender, curved, very 



