432 MurriILL: POoLYPORACEAE OF NortTH AMERICA 
12. Scutiger Whiteae sp. nov. 
A plant of medium size, growing in clusters, with yellowish- 
brown pileus and tubes that are white when fresh and rose-colored 
when dry. Pileus subcircular in outline, convex, depressed at the 
center, 8-12 x 0.5-1I cm.; surface pruinose, velvety to the touch, 
isabelline to fulvous, margin acute, at first inflexed, irregularly 
undulate at maturity: context fleshy-tough, 0.2—-0.5 cm. thick, of 
nutty flavor, rose-tinted when dry, dark red next to the tubes; 
tubes 0.1-0.3 cm. long, 3 toa mm., very decurrent, white when 
young and fresh, rose-colored when bruised or dried, mouths cir- 
cular or subcircular, edges thin, fimbriate: spores ovoid, hyaline, 
smooth, copious, 3.5 x 5: stipe short, usually excentric, en- 
larged at the base, 3 x 2-4 cm., concolorous, tough: plants caes- 
pitose, often confluent at the base, all stages of development being 
found in one cluster. 
A fine collection of this species was made by Miss V. White 
at Bar Harbor, Maine, in August, 1901. The plant was found 
growing among moss ona damp river bank and seemed to her 
to resemble Hydnum repandum in general habit. Accompanying 
the specimens are excellent field notes and drawings in water 
colors. 
Plants sent to Kew as P. ovinus by Farlow from New Hamp- 
shire seemed to me to agree with Miss White’s specimens, but no 
special study of them was made. A few other stray American 
plants in foreign herbaria lead me to think that this species may 
possibly range as far south as Ohio, but that its proper home is 
in New England. 
Porodiscus gen. nov. 
Hymenophore small, annual, tough, epixylous, erumpent from 
the lenticels of dead branches; stipe attached to the vertex of the 
pileus, usually curved at maturity ; context white, fibrous, tubes 
cylindrical, short, one-layered, mouths constricted ; spores globose, 
smooth, hyaline. 
The type of this genus is Polyporus pocula (Schw.) Berk. & 
Curt., first described by Schweinitz as Pezizsa pendula and later as 
Sphaeria pocula, By Fries it was first assigned to the genus 
Cyphella and later formed the basis of the new Friesian genus 
Enslinia, which name, however, was preoccupied by Enslima 
Rchb. The fruit body matures slowly and resembles a discomy- 
cete in its early stages, hence the confusion in regard to its syS- 
