REVISION ОЕ THE NORTH AMERICAN HYDNACEAE 221 
ally it is found on locusts or оп beeches; sometimes it is found 
on dead logs. Of fifteen specimens whose habitat was given, ten 
were on injured living trees; of these seven were Quercus, two 
Robinia, and one Fagus ; the remaining five plants grew on dead 
logs, one on Quercus, one оп coria, and the others unknown. 
There appeared to be no positive evidence that the character of 
the fungus was effected either by the species of the host, or by the 
condition of the substratum as to vitality. But this point can not 
be fully determined without more data and more careful observa- 
tions as to the condition of the host. There would seem to be 
some significance іп the fact that Æ. Erinaceus appears to prefer 
living oaks while Я. laciniatum апа H. coralloides equally prefer 
dead beech. 
5. Hericium croceum (Schw.) 
Sistotrema croceum Schweinitz, Syn. Fung. Car. Sup. 76. 1818. 
Hydnum croceum Schweinitz, Syn. N. Am. F ung. 163. 1834. 
Hydnum Schiedermayeri Неш, Oesterr. Bot. Zeitschrift 20: Led 
1870. 
Plant body a resupinate subiculum, effused 7 cm.—1 m. long 
y 2-15 cm. wide, irregularly thickened into tuberculous protu- 
berances 2-10 mm. thick, о.5-2 cm. wide, from which the teeth 
depend, cream-colored to reddish buff towards the ends of the 
teeth, becoming darker in drying ; subiculum pubescent to tomen- 
tose; margin determinate, fimbriate; teeth fasciculate, pendant 
from the tubercles, bulbous and pubescent at base, glabrous, sub- 
translucent toward the point, terete ; the acute to flattened fimbri- 
ate apex, sometimes forked, 4-5 mm. long; spores white, ovoid, 
uniguttulate, 3.6 by 5.5 4; substance fibrous, somewhat tough. 
Нав.: On living or dead apple tree. Aug. 
Rance: New York, Banker; New Jersey, Griffiths ; Penn- 
sylvania, Raw. 
Icon.: Kalchbrenner, Icon. Select. Hym. Hung. AX. 38. f. 4. 
Exsicc.: Ellis, N. Am. Fung. 930. 
The Ellis plants in North American Fungi were referred to Æ. 
Schiedermayert. А similar plant was found by the writer on the 
vertical side of a crevice in a living but diseased apple tree. This 
plant was almost a counterpart of Kalchbrenner's figure. In the 
same orchard was found another. specimen effused for 20-25 cm. 
on the under side of dead apple-tree limbs. This plant was evi- 
