200 
Mycologia 
herbaria referred the forms generally to H. zonatum Batsch are 
of these two types. 
The American form which we have previously referred to this 
species we are now convinced is not a European plant. Nothing 
like it has been observed in any of the European collections. We, 
therefore, return to the prevailing view of the European mycol- 
ogists and regard H. zonatiini Batsch as synonymous with H. 
concresccns Pers. It is highly probable that H. cyathiforme Bull, 
should be regarded as of this segregation. At Paris, specimens 
from Desmazieres are strictly of this type and are ascribed in 
common to Hydninii cyathiforme Bull., H. concresccns Pers., and 
H. zonatnm Batsch. 
Hydnellum parvum sp. nov. 
Hymenophore terrestrial, mesopodous, gregarious, often con- 
fluent, small, cinnamon-brown with light margin ; pileus subconve.x 
to plane, umbilicate, or subinfundibuliform, irregular, thin, less 
than I mm. thick, 1.5-3 cm. wide; surface radiately fibrillose- 
striate, subpubescent, distinctly zonate with shades of brown, 
darker in the center, pink to nearly white toward the margin 
when fresh, but turning more or less uniform brown when 
dried ; margin thin, acute, repand, more or less lacerate ; substance 
darker and more compact than surface layer, azonate, thin; stem 
slender, subcylindrical, slightly bulbous at base with scarcely evi- 
dent spongy tomentum, solid, pubescent, cinnamon-brown, 1-1.5 
cm. long, 2-3 mm. wide ; teeth slender, terete, tapering, acute, 
not decurrent, dark-brown, less than 1.25 mm. long, shortening 
towards margin and stem ; spores subglobose, coarsely tubercu- 
late, 3-4 /A wide, brown; hyphae colored brownish, transparent, 
smooth, somewhat thin-walled, collapsing when dried, recover- 
ing but partially in KOH, running distinctly longitudinally and 
interweaving into a compact layer, separable with difficulty in 
KOH, septate without clamp-connections, segments extremely 
long, slender, uniform in width, 3-4 /u, wide, branches few, arising 
at a point about once or twice the width of the hypha below a 
septum and septate at about three or four times the width of the 
hypha above its origin. 
On ground in dry woods, usually under conifers, in late 
autumn. 
The type specimens were collected by Dr. L. M. Underwood in 
Alabama and are in the Underwood herbarium at Columbia Uni- 
versity. 
