638 TRANSACTIONS OF THE CANADIAN INSTITUTE, [VoL. VI. 
On dead poplar branches. Ottawa, Canada, Nov. 1898. (Macoun, 
No. 463.) 
This differs from Dothtorella quercina, Pk., principally in not being 
distinctly erumpent. 
HAPLOSPORELLA STAPHYLINA, E and D.  Stromata orbicular, I - 
11% mm. in diameter, or linear 2—4X1 mm.,, black, mostly flat or 
concave above, surrounded by the erect, free margin of the ruptured 
epidermis. Perithecia sunk in the stroma with only their apices pro- 
jecting, sometimes semi-erumpent ; two to four or more in a stroma. 
Sporules oblong, brown, obtuse at the ends, 13-25 x6 — 8». 
On dead Staphylea trifolia. On the mountain above Montreal. Nov. 
1898. (D. No. 2901.) 
DIPLODINA MACROSPORA, E and E. Perithecia scattered, sub-cuti- 
cular, about % mm. in diameter, hemispheric, prominent, covered by the 
blackened, partially adnate epidermis which is pierced, or oftener trans- 
versely split by the papilliform ostiolum. The perithecia are seated on 
the surface of the inner bark and but slightly sunk in it, and in the areas 
occupied by the perithecia the epidermis is loosened and paler. Sporules 
oblong-elliptical, hyaline, 20- 30x 10-12», becoming uniseptate, on 
stout slightly swollen basidia 10-12» long. This species differs from 
Diplodia mamillana, (Fr.), only in its hyaline, oblong-elliptical sporules. 
On dead limbs of Cornus sp.; Bay of Islands, Newfoundland ; Aug. 
1898. Coll. Rev. A. C. Waghorne. 
