342 The American Naturalist. [April, 
slightly curved or subinequilateral, 3-5 septate and constricted at the 
septa, hyaline, becoming brown, 16-22 x 5-6. Differs from L. artemi- 
sie Fckl. in its smaller size throughout. 
PLEOSPORA FINDENS E. & E. On dead culms of Andropogon vir- 
ginicum, Newfield, N. J., October, 1896. 
Perithecia buried, globose, 150» diam., with the conic-tuberculiform 
ostiolum erumpent. Asci cylindrical, short-stipitate, 130-150 x 12%.. 
Paraphyses none. Sporidia uniseriate, oblong, 5-septate, most of them 
with one or two cells divided by a longitudinal septum, straw-yellow. 
Many of the sporidia are without any longitudinal septa, resembling 
Leptospheria. The pycnidial form isa Hendersonia, similar outwardly 
to the ascigerous, but with fusoid, straw-yellow, 3-4 septate sporules, 
20-34 x 3-5y. 
PLEOSPORA OLIGOSTACHYH E. & E. On leaves of Bouteloua oli- 
gostachya, Rooks Co., Kansas, October 1896 (Bartholomew, No. 2325). 
Perithecia scattered, hemispheric-prominent, small (200), black, 
with a minute papilliform ostiolum. Asci oblong-cylindrical, short 
stipitate, 65-75 x 12-14», with abundant paraphyses. Sporidia beseri- 
ate, oblong-elliptical, subinequilateral, 3-septate, scarcely constricted, 
one of the cells often divided by a longitudinal septum, but quite as 
often this is wanting, 14-17 x 6-7y. 
DIAPORTHE RADICINA E. & E. On bulbous base of culms of dead 
Phleum pratense, Newfield, N. J., December, 1896. 
Perithecia in small groups buried in the matrix, which is blackened 
on the surface, about } mm. diam. Ostiola erumpent, short-cylindrical, 
smooth, obtuse. Asci (p. sp.) cylindric-fusoid, 40-45 x 5-6. Sporidia 
1-2 seriate, oblong, 3-4 nucleate, scarcely constricted, 10-12 x 3-4». 
EUTYPELLA POPULI E. & E. On dead limbs of Populus, Canada 
(Macoun). 
Stroma orbicular, convex, 1-2 mm. diam., seated on the wood and 
raising the bark into pustules, not circumscribed. Perithecia 12-30 in 
a stroma, closely packed, ovate-globose, about } mm. diameter. Ostiola 
short cylindric-conical, erumpent in a dense, flat-topped fascicle, dis- 
tinctly quadrisuleate. Asci (p. sp.) about 20 x 4». Sporidia subbiser- 
iate, allantoid, only slightly curved, brownish in the mass, 4—5 x 1-1}. 
= VALSARIA COLORADENSIS E. & E. On dead bark of Negundo acer- 
oides, Overland, Colorado, November, 1896 (E. Bethel, No. 136). 
Perithecia 4-6 or more, buried in a cortical stroma consisting of the 
whitened (but otherwise unchanged) substance of the bark, about 4 
mm. diam., with thick coriaceous walls. Ostiola slightly erumpent 
through small chinks in the bark, subconfluent, conic-tuberculiform, 
