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19181 
BURT—THELEPHORACEAE OF NORTH AMERICA. X 363 
33. Н. cervina Berk. & Curtis, Linn. бос. Bot. Jour. 10: 
334. 1868; Cooke, Grevillea 8: 147. 1880; Saec. Syll. Fung. 
6:596. 1888; Massee, Linn. Soc. Bot. Jour. 27 : 114. 1890. 
Type: in Kew Herb. and Curtis Herb. 
Fructification resupinate, effused, adnate, very thin, usually 
cracked, drying Dresden-brown, the margin thinning out; in 
structure 80-200 u thick, com- 
posed of densely interwoven, 
suberect hyphae, of crystal- 
line masses, and of setae; 
hyphae 21-3 y in diameter, 
giving their color to the fruc- 
tification; crystalline masses Q f) D 
12-15 yw in diameter; setae С 
distributed in all parts of the a 4 
section and some starting Fig. 29 
from the substratum, 60-90 H. cervina. 
3 Section, a, X 68; seta, b, cystidia, 
10-12 н, emerging up to 40 p, c, and spores, s, X 640.” From type. 
tapering from the base to a 
sharp apex; spores hyaline, even, 7-934 p. 
Fructifications 5 em. or more long, about 1-2 em. broad. 
On dead limbs and decorticated wood. Illinois, Louisiana, 
and Cuba. | 
By reason of its thin fructification, few hyphae, and abun- 
dant setae starting from substratum, H. cervina is near H. 
episphaeria in structure and general aspect, but may be dis- 
tinguished from this species by larger spores and by the 
“эргезепее of cystidia which finally become crystalline masses. 
Perkeley’s comment that specimens of H. cervina resemble 
“Hymenochaete Curtisii is misleading and probably due to his 
. having referred to H. cervina a collection of Stereum um- 
brinum, the Curtis Herb., 2308. 
Specimens examined: 
Louisiana: 4. B. Langlois, 267, comm. by U. S. Dept. Agr. 
Herb. 
Cuba: C. Wright, 213, type (in Kew Herb. and in Curtis 
