100 
JOURNAL, OF MYCOIyOGY. 
[Vol. IV, No. io, 
Asci oblong-cylindrical, sessile about 35 x 6 micr., with filiform 
paraphyses very slightly thickened above. Sporidia biseriate, 
clavate-fusoid, continuous, hyaline, 8—11 x 1|. When dry has 
much the same general appearance as P. protrusa , B. & C. 
Peziza clavigera, E. & E.— On dead leaves of Ammophila, 
longifolia. Sand Coulee, Montana, July, '88, F. W. Anderson, 
No, 22. Protruded when moist, contracted and hysteriform when 
dry, disk cinereous or livid-white, oblong, J—J mm. wide, J—-1 mm. 
long, margin fimbriate, of fibrous structure, the ends of the fibers 
roughened. Asci clavate-cylindrical, sessile, narrowed below into 
a stipe like base. Paraphyses clavate thickened, muricate rough¬ 
ened and 3J—4 micr. thick above, attenuated and septate below, 
rather longer than the asci. Sporidia biseriate, oblong, hyaline, 
obtuse, 2—3-nucleate, 12—15 x 4—4J. Allied to such species as 
P. protrusa , B. & C. and P. Andropogouis, B. & C. 
Dermatea purpurascens, E. & E —On dead chestnut limbs, 
West Chester, Pa., July ’88. Erumpent, sessile, substipitate, \—J 
mm. high, scattered or two or three together, disk convex or plane, 
subimmarginate, J—1 mm. across, dirty white becoming red dish- 
purple, darker outside, contracted below with a short thick stipe¬ 
like base. Asci clavate-cylindrical, 115—120 x 18—22, with 
stout paraphyses slightly thickened above. Sporidia biseriate, 
oblong, slightly curved, 25—30 x 8—11, nearly hyaline, ends 
obtuse, with 4 large nuclei. The fruit is about the same as in 
D. oli vacea , BIL, and the size, shape and general habit is about 
the same as in that species from which in fact it differs, principally 
in the color of the disk, and of which it might perhaps be con¬ 
sidered a mere variety. 
Dermatea pruinosa, E. & E,—On decaying bark. Colo¬ 
rado, Theo. D. A. Cockerell. Gregarious, sessile or nearly 
so, centrally attached with the thin margin free and spreading, 
2—2J mm. across, dirty-brown and white-pruinose outside, disk 
livid-white, (light liver color when dry). Asci cylindrical 55 x 5 
micr. with filiform paraphyses simple or branching. Sporidia 
mostly biseriate, allantoid, hyaline, 8—10 x 2—2J. Allied to 
P. (Dermatea) fuscosanguinea Pehvn ., but differs in color and 
in the size and shape of the sporidia. 
Helotium rhizogenum, E. & E.—On exposed dead roots of 
Andropogon , Newfield, N. J., Aug. 1885. Stipitate, pale at first, 
becoming light yellow. Stem cylindrical, rather crooked, 2—4 
mm. high, J-—1 mm. thick, pale and granulose-pubescent, at first 
only slightly enlarged at the top and merely excavated or 
