Dearness: New Species of Fungi 
101 
FUNGI IMPERFECTI 
lo. Placosphaeria cornicola sp. nov. 
The afifected leaves, or the affected areas thereof, turn bright 
red, then gradually become cinnamon color, mottled on both sides 
with the numerous black stromata. Stromata effused, less than i 
sq. mm., tending to become confluent. Pycnidia epiphyllous, 1-9 
or more in a stroma, 40-60 /a in diameter, their positions marked 
by a pale-bordered perforation or stoma. Spores hyaline, oblong, 
2-5-5 X 0.5-0.75 fi. 
Attacking living leaves of Cornus Niittallii Aud., Vancouver 
Isla’nd, B. C., September, 1914, John Macoun. 
II. Sphaeropsis lineata Ellis and Dearness, sp. nov. 
Pycnidia separate but so close together as to seem to the naked 
eye to be in continuous parallel lines, hemispheric, closely invested 
by the ruptured epidermis, 160-360 ju,; ostiola short, black with a 
white center visible under the lens. Conidia brown, oblong-ellip- 
tic, rounded at the ends, a median nucleus often giving under low 
magnification the appearance of a septum, 19-24 X 9-12 ;u, on 
basidia of about half their length. 
On dead branchlets of Acer nigrum Michx. f., near London, 
Ontario, November, 1903, I. Dearness 3046. The late Mr. J. B. 
Ellis examined this species and pronounced it a new one, but he is 
not responsible for any errors there may be in the above de- 
scription. 
12. Cytodiplospora parallela sp. nov. 
Stromata erumpent, verruciform to elongate, 0.5-2 mm., some- 
times scattered, but mostly in somewhat broken parallel lines, 
when well developed containing 5 to 15 pycnidia or locules which 
in tangential section are distinctly visible by their whiteness against 
the black stromatic substance. Pycnidia wholly or partially im- 
mersed, — in the latter case seeming cespitose, — papillate, 90-150 /u.. 
Conidia hyaline, pyriform, uniseptate, subsessile, 12 X 6/x. 
On Acernigrum Michx. f., Byron, Ontario, October-November, 
1903, /. Dearness 3206. 
13. Ascochyta Achlydis sp. nov. 
Spots scattered, numerous small ones 2 mm., mostly sterile and 
a few large ones i cm. or more in diameter, all with a central, 
sharply deliminated, thin, arid, deciduous area surrounded by a 
