[Vor. 5 
366 ANNALS OF THE MISSOURI BOTANICAL GARDEN | 
Eur. 645. 1874.—H ymenochaetella fusca Karsten, Hedwigia 
35:174. 1896.— Hymenochaete fusca Karsten in Saec. Syll. 
Fung. 14 : 218. 1900. 
Fructifications resupinate, broadly effused, adnate, thin, not 
cracked, somewhat colliculose, bister to warm sepia, con- 
spicuously setulose under a lens, the margin determinate; in 
structure with setigerous layer 150- 
ІНШІ) i UA, 200 р thick, sessile upon the sub- 
M ТІГІ aui Wy; stratum; setae abundant, 60-758-9 
Ji JA. u, emerging up to 45 y, starting from 
Fig. 32 all parts of the setigerous layer; 
H. fuliginosa. spores of spore collection white, even, 
Section ea From Bres- 4x29 
adola. See pl. 17, f. 10. H. 
Covering areas up to 15X5 cm. 
On decorticated, rotting wood of frondose species. Ver- 
mont, Maryland, O5, BONUS and in Cuba. June to 
Oetober. Local. 
H. fuliginosa has the aspect of a resupinate H. rubiginosa, 
but is not separable and lacks the conspicuous ochraceous- 
tawny margin of the latter; when sections are viewed with 
the microscope they show a setigerous layer like that of H. 
rubiginosa but differing by having this setigerous layer 
seated directly upon the substratum instead of upon an in- 
termediate layer. The structure in section places H. fulig- 
inosa in the group of species with H. corrugata; it is distin- 
guished from the latter by not cracking, by colliculose surface, 
and by color. American specimens agree well with that re- 
ceived from Bresadola, whom I have followed as to name for 
the present. 
Specimens examined: 
Sweden: authentic specimen from Karsten of Hymenochaete 
fusca, comm. by J. Bresadola. 
Austria-Hungary: Hungary, Kmet, det. and comm. by J. 
Bresadola. 
Vermont: Middlebury, E. A. Burt, three collections, and C. G. 
Lloyd, 10693 (in Lloyd Herb., and in Mo. Bot. Gard. Herb., 
55555). 
Maryland: Takoma Park, C. L. Shear, 1157. 
