176 REVISION OF THE NORTH AMERICAN НҮрхаАСЕАЕ 
teeth pendent from their lower sides, ending at the margin in verti- 
cally-compressed naked free ends which are paler and subtrans- 
lucent, the upper branches ascending and terminating on the surface 
of the pileus in terete free ends wholly surrounded with strigose 
branched hairs but with the tip naked, paler, subtranslucent, 
the projecting ends standing up like miniature spruce trees, the 
naked ends becoming blackish in old weathered specimens and E 
drying ; margin fimbriate from tlie projecting ends of the branches ; 
teeth slender, terete, acute, shortening toward the margin, 3 mm. 
long and less, 0.14—0.18 mm. wide, 2 or 3 to one millimeter, dark 
umber to pale brown toward the margin, in composition and color 
like the branched processes; spores ovoid or elliptical, hyaline, 
with one or more irregular guttulae, minutely papillose, 3.5—4 (t by 
4-5-5 М; sterigmata 3-3.5 и long; База four spored, clavate ; 
taste intensely acrid ; odor not marked. 
Нав. : On very rotten stump іп damp woods. June—Aug. 
Rance: New York, Ellis, Banker ; Nebraska, Webber ; Тома, 
Holway. : 
The type material is т the author's collection preserved both 
dry and in formalin, the latter method seeming to preserve all the 
characters of the plant perfectly. Material obtained a year later 
from the same stump is in the New York State Herbarium at 
Albany. This species is the type of the genus. 
The plant was first found by Ellis in Potsdam, N. Y., in 1855 
and was sent for determination to Ravenel, whose reply was 
“new and very curious.” No attempt, apparently, was made to 
describe or publish the species and it was soon buried in the 
mass of the Ellis collections. In the spring of 1904 the writer 
noticed the specimen, small and somewhat the worse for age, ІП 
the collection at New York and took notes on it. That very 
summer it was his fortune to find a considerable quantity of the 
same thing on a stump in Schaghticoke, N. Y., and it was from 
this material that the above description has been prepared. 
The Webber and Holway specimens differ from the type 
plants in the pileus being plane with the surface nearly even. 
Apparently the ends of the branches do not project and form а 
roughened surface as in the type forms. It is doubtful, however, 
if they represent a fixed variation. These plants were referred by 
Ellis first to Hydnum cirrhatum Pers. and afterwards to Hydnum 
strigosum Swartz, but the character of the subiculum shows them 
to be distinct from either. 
