Banker: Type Studies in Hydnaceae 
‘203 
somewhat uneven, sometimes wrinkled or irregularly corrugated, 
central portion of disk brownish to dark-brown becoming blackish 
with age, glabrous or subpubescent, sometimes pelliculose, with a 
more or less distinct border of whitish or isabelline wooly pubes- 
cence 1-2 cm. wide; margin obtuse, entire, substerile; substance 
in two layers, an upper spongy layer thickest at center and thin- 
ning out toward margin, and a lower hard, woody layer extending 
into and forming the core of the stem, sometimes transversely 
zonate, light-brown to pallid, hygrophanous, juice watery, color- 
less ; stem central or excentric, short, with a spongy bulbous base, 
surface more or less uneven, dark-brown to blackish, subpubes- 
cent, 1-3 cm. long including the bulbous base, 0.7-1 cm. wide; 
teeth stout, somewhat compressed, often forked, obtuse to acute, 
shortening uniformily toward stem and margin, decurrent to the 
bulbous base, dark-gray-brown at base, lighter toward tip, 5 mm. 
or less long, o.i mm. wide, 6-8 to a sq. mm.; spores brown or 
fuscous, ovoid, coarsely tuberculate, 4 X 5 /-<■ wide ; hyphae in the 
compact portions hyaline, smooth, somewhat thin-walled, collaps- 
ing when dried, recovering quickly in KOH, running longitudi- 
nally and interwoven, somewhat easily separable in KOH, septate 
with simple clamp-connections, segments extremely long, slender, 
uniform, with many guttulae, 4-5 /x wide, branching diffuse, both 
filaments septate a little above origin of branch, but only main 
filament with clamp-connection; in spongy portions hyphae thin- 
walled, collapsing and not recovering much in KOH, forming an 
intricate tangle and not separating easily in KOH, septate with- 
out clamp-connections and without guttulae, in other respects as 
the former; odor pleasant somewhat farinaceous, not strong; 
taste mild. 
On ground under hemlocks, in late summer. 
The type specimens were collected by the writer near Bolton, 
N. Y., and are in his herbarium. Specimens of what appear to 
be the same have been seen from New York, Undenvood, and 
from New Hampshire, Wilson. 
Hydnellum Peckii sp. nov. 
Hymenophore terrestrial, mesopodous, gregarious to subcon- 
fluent, whitish to brownish gray, small to medium sized ; pileus 
subobconic, plane to depressed, inclined, somewhat round to irreg- 
ular, 2-5 cm. wide, 2-5 mm. thick; surface uneven, whitish pubes- 
cent when young, becoming glabrous and brownish-gray ex- 
tending from the center finally to the margin ; margin thin, acute. 
