1921] 
BURT—TREMELLACEAE, DACRYOMYCETACEAE, AURICULARIACEAE 305 
radiating folds or wrinkles which are frequently interrupted, 
drying fuscous to fuscous-black and finally suffused with a 
bloom, the margin red or orange when young; basidia simple, 
hyaline, protruding beyond the dark zone of hymenial hairs, 
12-15 x 3-4 y, bearing 4 slender sterigmata 414 u long; spores 
white in collection on slide, flattened on one side, 6-8 x 3-4 y. 
Resupinate fructifieations 1-5 cm. in diameter; reflexed 
fructifications have reflexed part up to 5-15 mm. long and 
resupinate portion up to 10 cm. in diameter. 
Common on poplar, reported on beech and oak also. Ontario 
to South Carolina and westward to Manitoba, Minnesota, and 
Arkansas. August to December. 
Early in its season the fructifications of this species are small, 
resupinate, brighter red than later, and with the hymenium 
nearly even and not yet fertile. The type specimen of P. orbicu- 
laris has the aspect of an immature specimen of P. sírigoso- 
zonala, but it may prove distinct since 1t was collected on Quercus; 
in its native region, it should be followed through the season 
until it gives good spore collections in order that’ mature speci- 
mens may be available for comparison with P. strigoso-zonata. 
Specimens referable to the latter were distributed under various 
names in Ell. & Ev., N. Am. Fungi, 2731, and 3416, the latter 
being fertile, in Ravenel, Fungi Car. 3: 23, and in Shear, N. Y. 
Fungi, 47. 
Helicobasidium Peckii Burt, n. sp 
Type: in Mo. Bot. Gard. Herb. ai Y.State Mus. Herb. 
Fructification resupinate, effused, coriaceous, separable, drying 
with the subiculum loosely interwoven and army-brown and the 
hymenium avellaneous, even, dry, glabrous, not at all gelatinous 
or waxy; in structure 800-1200 u 
thick, composed of loosely inter- 
(S Cs woven, stiff, colored hyphae 4% win 
diameter, not nodose-septate, not 
wa O D incrusted, darkest next tothe sub- 
stratum; basidia curved or hook- 
b', mature basidia, b, and spor ; shaped, becoming trangversely d 
type, X 665. ' septate, with the sterigmata dis- 
tributed one to each cell on the convex side; spores hyaline, 
even, flattened on one side, 9 x6 y, copious. 
£ 
Fig. 6. H. Peckii. Young papig 
