1917] 
BURT—MERULIUS IN NORTH AMERICA 349 
of M. brassicaefolius, therefore, upon the original description, 
the revision by Fries, and the specimens distributed by Rav- 
enel. This species is somewhat intermediate between resup- 
inate specimens of M. lacrymans and M. himantioides. Fruc- 
tifieations of M. brassicaefolius are not as thick and fleshy 
as those of M. lacrymans, and the hymenium is not deeply 
porose nor having folds grown out into Irpex-like or radu- 
loid teeth, and the spores are slightly larger and much paler 
than those of M. lacrymans. The dried specimens of M. bras- 
sicaefolius are thicker and much larger than those of M. himan- 
tioides, less fragile, readily separable from the substratum 
in large sheet-like masses like those of the sterile mycelium 
of Himantia, and the hymenium is as even as that of Conio- 
phora arida for a broad marginal portion and becomes porose- 
sinuate at the center by accumulation of hymenial folds there. 
I have seen no specimens of M. pulverulentus, a species re- 
markable by having the hymenial folds best developed towards 
the margin and with the center becoming even and decaying. 
Specimens examined: 
Exsiecati: Ravenel, Fungi Car. 2: 23; Ravenel, Fungi Am., 
432, under the name Merulius pulverulentus. 
Massachusetts: Boston, J. Е. Joor (in Mo. Bot. Gard. Herb., 
4067, 4070). 
соса рд Bethlehem, Schweinitz (in Herb. Schweinitz), 
the 506 of Syn. N. Am. Mui under the name Merulius 
himantioides and determined by Berkeley & Curtis as M. 
brassicaefolius. 
South Carolina: H. W. Ravenel, in Ravenel, Fungi Car. 2: 
23; Aiken, Н. W. Ravenel, in Ravenel, Fungi Am., 432. 
Alabama: Peters, 1153 (1n Curtis Herb.). 
Louisiana: Professor Featherman, 4 (in Curtis Herb.) ; St. 
Martinville, А. B. Langlois, 1590. 
33. M. himantioides Fries, Syst. Мус. 1: 329. 1821; Epicr. 
501. 1838; Hym. Eur. 592. 1874; Басе. Syl. Fung. 6: 415. 
1888; Romell, Arkiv for Bot. 11°: 28. pl. 2. f. 19. 1911. 
Мегация tenuis Peck, N. Y. State Mus. ре 47: 147. 1894; 
басс. Syll. Fung. 11: 105. 1895. 
