131 
Perithecia subgregarious, ovate-conical, grayish-brown, about 
¥y mm. in diameter, 1 mm. high, base slightly sunk in the wood; 
ostiolum stout, short-cylindrical, black, rough, obtuse; asci 
cylindrical, 110 12 », paraphysate, 8-spored ; sporidia elliptical, 
narrowed at the ends, but obtuse, brown, uniseptate, deeply con- 
stricted and easily separating at the septum, 20-23 X 9-II p. 
LEPTOSPHAERIA RHOINA E. & E. 
On decorticated wood of Rhus glabra, Rooks Co., Kansas, 
Sept., 1895. (Bartholomew, no. 1933.) 
Perithecia gregarious, buried in the surface of the weather- 
beaten wood which is raised into small pustules over them, globose 
or short-elliptical, 200-250 in diameter; ostiolum papilliform, 
erumpent; asci clavate-cylindrical, 60-70 X 8-10», short-stipi- 
tate, paraphysate; sporidia biseriate, fusoid, slightly curved, 
3-5- (mostly 5-) septate, constricted at the septa, yellow-brown, 
16-22 (mostly 20) X 5-6% pv. 
Closely allied to L. Bagge: (Awd. and Niessl.), which has rather 
larger perithecia, broader asci (70-90 X 16-20) and longer 
sporidia. bg 
PLEOSPORA CRANDALLU E. & E. 
On dead stems of Androsace Chamacjasne, above the timber ‘ 
_ line, Cameron Pass, Colo., alt. 12000 feet, July 6, 1894. (Prof. 
C. S. Crandall, no. 237.) 
Perithecia scattered, semi-erumpent, obtusely conical, 200 » in 
diameter, with a papilliform ostiolum; asci oblong, subsessile, 
with very short nodular stipe, 75-80 X 20-22, with indistinct 
paraphyses; sporidia crowded, biseriate, oblong or slightly obo- 
vate-oblong, 5-septate, scarcely constricted, 2 or more of the cells — 
divided by a longitudinal septum, 20-22 X 10-12», ends obtusely 
rounded. 
Differs from P. media Niessl. in its smaller conical perithecia — 
not collapsing. 
| - -Diropura Macnouaz E. & E. 
On dead limbs of Magnolia Fraseri, Nuttallberg, West Va., 
May 12, 1896. (L. W. Nuttall, no. 849.) 
Perithecia in circinate clusters of 3-6, seated on the inner bark, 
ovate-globose, membranous, %4-34 mm. in diameter, with the 
short cylindrical, subsulcate-cleft or smooth ostiola slightly 
erumpent in a rather loose fascicle; asci clavate-cylindrical, 
short-stipitate, 90-110 X 8-10”; paraphyses inconspicuous or 
none; sporidia biseriate, oblong-fusoid, hyaline, becoming I- 
