Banker; Type Studies in the Hydnaceae 
15 
There is of course no type of H. imbricatum L. in existence. 
At Upsala a number of specimens of European plants, mostly 
from Scandinavia and Finland, were found referred to this species 
by Fries, Karsten, and others. These were uniform in character 
and most closely resembled the large coarse-scaled American 
forms as figured by F. E. Clements, Minnesota Mushrooms 104. 
/. dp. 
No type of H. cerviiiuni Pers. was found at Leyden, but from 
the description the species does not appear to be distinct from 
H. imbricatum L. and was so regarded by Persoon himself, see 
Syn. Meth. Fung. 554. 
Sarcodon Murrillii sp. nov. 
Hymenophore terrestrial, mesopodous, medium to large size, 
reddish-brown ; pileus expanded to infundibuliform, subrotund to 
irregular, 5-10 cm. wide, 1-2 mm. thick when dried; surface 
roughened with fine floccose scales, coarsest toward center, 1-2 
mm. wide, ends upturned, about as long as wide, subzonately 
arranged, dark-reddish-brown on scales, lighter between ; margin 
thin, fertile, repand, finely lobed or crenate, pallid; substance 
fleshy, pale-brown to whitish, drying thin, but somewhat tough 
and flexible ; stem subcentral, strongly inclined, tapering gradually 
and then abruptly to the base, reddish-brown above, concolorous 
with pileus, paler below but becoming blackish at the base, sca- 
brous roughened nearly to the base, apparently hollow or stuffed. 
4-6 cm. long, 1-2 cm. wide ; teeth small, slender, terete, tapering, 
acute, crowded, decurrent nearly to the base, reddish-brown, white 
tipped, 1.5 mm. or less long in dried plant, 0.15-0.25 mm. wide, 
9-12 to a square mm.; spores subglobose, tuberculate, tubercles 
not prominent, pale-brownish, 6-7 /i wide; basidia prominent, 
irregular, clavate, 8-10 ju, wide; sterigmata conical, curved, horn- 
shaped, 3-4 long; hyphae of trama hyaline, smooth, thin-walled, 
collapsing when dried, recovering in KOH, subparallel but partly 
separable in KOH, septate, without clamp-connections, segments 
short, stout, constricted at the septa, irregular, 10-28 /x wide by 
20-70 /X long; hyphae of the teeth very slender, tubular, rarely 
septate, 3-4 /x wide. 
The type of the species is Murrill and House jp7, Transylvania, 
North Carolina, deposited at the New York Botanical Garden. 
Many of the specimens distributed in Ellis, N. Am. Fung., 
“ 926 Hydnum imbricatum ” are undoubtedly this species. I 
know that some of them are. 
