180 REVISION OF THE NORTH AMERICAN HyDNACEAE 
Hydnum brunneo-leucum В. & C. Trans. Linn. Soc. 22: 129. 
1859. 
Plant pileate, subsessile, horizontal, reddish yellow; pileus 
round to reniform, concavo-convex, very thin, 2-3 cm. wide, 3 cm. 
long, less than 0.25 mm. thick when dry ; surface glabrous, even, 
reddish ochraceous to chestnut-brown, or dark blood-red toward 
margin, whitish puberulent near point of attachment ; margin thin, 
reflexed, crisped; hymenial surface pale to reddish ochraceous; 
stem scarcely evident, 3 mm. wide, broadening to a disc-shaped 
foot on the substratum about 6 mm. in diameter, whitish puberu- 
lent; substance fleshy, subgelatinous, subbrittle when dry ; teeth 
short, minute, straight, terete, conical, subciliate, reddish ochra- 
ceous with pale tips, scarcely visible to the eye, decurrent to the 
base 125—160 и long by 35-50 и wide, 9 and то to one millimeter ; 
spores not observed. 
Нав. : On dead wood. Ало.” 
RANGE: Louisiana, Langlois ; Cuba, Wright. 
Icon.: Berkeley, Joc. cit. pl. ro. Ге, 6, 0, c. 
Swartz’s type specimen was from the West Indies. Berkeley 
says : “ Swartz described the smooth outer surface of the pileus as 
the hymenium.” І find no evidence in Swartz’s descriptions that 
such was the case. He makes no mention of a hymenial or spore 
bearing surface, the essential characters of which were probably be- 
yond his means of analysis, and I think he merely got the plant 
turned upside down in which position it closely resembles a cup- 
shaped peziza in form, color, and consistency. 
The description given above has been made from dried speci- 
mens whose characters have doubtless changed somewhat from 
the fresh plant. On none of the specimens examined was I able 
to detect any spores. The plant needs to be carefully studied 
and more fully described from fresh material. 
Hydnum brunneo-leucum В. & С. appears to be only a poorly 
developed form of G. flavum. 
