126 REVISION OF THE Моктн AMERICAN HYDNACEAE 
Exsicc.: Shear, New York Fung. 114. 
The collections indicate that the species varies greatly in form 
and habit. It also undergoes considerable change in appearance 
during growth. Hydnum conchiforme appears to me to be а young 
state of the plant. 
2. Steccherinum Rhois (Schw.) 
Hydnum Rhois Schweinitz, Syn. Fung. Car. Sup. 77. 1818. 
Hydnum flabelliforme Berkeley, Lond. Jour. Bot. 4: 306. 1845. 
Plant pileate, short stipitate, subsessile, or effused to resupinate, 
subimbricate, laterally confluent; pileus flabelliform to subdimidi- 
ate, horizontal or ascending, narrowing behind, 1.5-2.5 cm. wide, 
1-3 cm. long, surface sulcate-zonate, often radiately rugose, stri- 
gose-hairy to subtomentose, the strigose character more marked 
toward the margin, light gray on older and more exposed pilei, 
light buff on younger and more protected parts; margin entire, 
repand, subfertile or sterile less than 0.5 mm. incurved or reflexed, 
puberulent ; substance fibrous, tough, dry, thin ; stem lateral, short, 
vertically compressed, less than 5 mm. long or wanting and plant 
spreading back resupinately over the substratum ; hymenium ochra- 
ceous, whitish-pubescent, often delimited behind; teeth crowded 
short, more or less decurrent, ochraceous to buff, compressed, 
often forked, whitish-puberulent, 1-2 mm. long, 3 and 4 to one 
millimeter ; spores elliptical or oblong, smooth, granular, hyaline, 
2-2.5 by 3-3.5 и; tasteless, odorless. 
Has.: On dead Liguidambar, Nyssa, Rhus, Mohrodendron, 
Quercus. Throughout the year. 
Rance: Pennsylvania, Banker; Maryland, Ricker; New Jer- 
sey, Ellis; South Carolina, Ravenel; Alabama, Earle ; Florida, 
Exsicc. : Ravenel, Fung. Am. Exsicc. 455 (as Hydnum ochra- 
ceum); Ellis, N. Am, Fung. 605, as (Hydnum ochraccum) ; Rave- 
nel, Fung. Car. Exsicc. 25. 
The type specimen in the Schweinitz herbarium is entirely de- 
stroyed. І have not found it possible to separate 77. flabelliforme 
from the above species. Berkeley himself expressed doubt as 
to their being distinct. This species like S. ochraceum is extremely 
variable but with abundance of material one finds that these various 
forms blend inextricably with each other. There is some reason to 
