1918] 
BURT—THELEPHORACEAE OF NORTH AMERICA. X 343 
tered in all parts of the setigerous layer, sometimes slightly 
faleate, 50-605-6 и, emerging up to 40 и, tapering from the 
base to a slender and sharp apex; basidia 
with 4 sterigmata; spores in spore collec- 3 ©) 
tion white, even, 5-5434-4 и; causing 0 
pocketed rot in decorticated hard wood. 
Covering decorticated poles 20 feet long. д, о + 
On dead frondose wood. Cuba, Ven- 
ezuela, and Brazil. December to April. 
H. unicolor has the coloration and gen- 
eral aspect of H. cinnamomea and H. spreia 
but is usually rimose in contrast with the 
former and with a more velvety hymenium 
than the latter and is of a very dense struc- 
ture with its hyphae arranged parallel with 
the rather uniformly distributed setae, ыы x хн; 
while H. cinnamomea and H. spreta are ‘eta + e qnm; 
stratose, with alternating layers of loosely ш 
interwoven hyphae separating the two or more hymenial 
layers. The dry rot produced in the wood by H. um- 
color is a pocketed rot, as shown by the fine collection 
by Lloyd and well shown in his fig. 781, cited above, while the 
rot produced by H. spreta is a soft, fibrous sap rot which at- 
tacks the sap-wood uniformly from the outer surface. The 
specimen referred by Berkeley and Curtis to H. fuliginosa, 
collected in Cuba, C. Wright, 188, differs so slightly from the 
type of H. unicolor that it will probably be included in Н. ши- 
color when better known by other collections. 
Specimens examined: 
Cuba: C. Wright, 541, type (in Kew Herb.) and an unnum- 
bered collection of 1857, under the name of H. cinnamomea 
(in Curtis Herb.), and 188, under the name Hymenochaete 
fuliginosa (in Kew Herb.) ; C. G. Lloyd, 142, 171 (in Lloyd 
Herb., and in Mo. Bot. Gard. Herb., 55458, 55473) ; Ceballos, 
C. J. Humphrey, 2585, 2590, 2696, 2829, 2964 (in Mo. Bot. 
Gard. Herb., 16043, 16052, 1778, 14838, 1766). 
Jamaica: Troy and Tyre, W. A. МитШ Ф W. Harris, 991, 
comm. by N. Y. Bot. Gard. Herb. 
