Davis—North American Ascochytae 
657 
7 Ascochyta baccae Rostr. 
Till. Groenl. Svampe, p. 625. 
Pycnidia small, grayish brown; sporules hyaline, guttnlate, 
uniseptate, constricted at the septum, 9-12 x iy 2 -2[jL. On fruit 
of Empetrum nigrum. 
8 Ascochyta boerhaaviae Tharp. 
Mycologia 9:106. 
Spots suborbicular, dirty brownish grey, 2-4 mm.; pycnidia 
epiphyllous-innate, dark brown, globose-depressed, ostiolate, 
80-120 x 70-105ja; sporules hyaline, guttulate, uniseptate, 12-14 
x 31 / 2 - 4 /*. On leaves of Boerhaavia erecta. 
9 Ascochyta bresadolae Sacc. & Syd. 
Sacc. Syll. Fung. 14:948. Ascochyta fagopyri Bres. 
Hedwigia, 31 :40. 
Spots alutaceous with a darker border above, pale below, 5-9 
mm. in diameter; pycnidia epiphyllous, scattered, subglobose- 
ovoid, ostiolate, 130-140/x; sporules cylindric-oblong, sometimes 
somewhat curved, uniseptate, constricted at the septum, 16-18 x 
6-7/*. On leaves of Fagopyrum esculentum. 
10 Ascochyta carthagenensis Sacc. 
Mich. 2:144. 
On indefinite whitish spots on the branches; pycnidia aggre¬ 
gated, lenticular, at first covered, ostiolate, 100/x in diameter; 
sporules greenish, oblong, obtuse at both ends, uniseptate, con¬ 
stricted at septum, 7-9 x 3-3%/*. On branches of Manihot 
carthagenensis. 
11 Ascochyta cassandrae Pk. 
38th Report, p. 94. 
Spots suborbicular or irregular, reddish-brown or grayish with 
a reddish-brown margin; pycnidia epiphyllous, minute, erurn- 
pent, blackish; sporules hyaline, oblong-fusiform, acute at each 
end, uniseptate, 10-16 x 3-4/*. On leaves of Chamaedaphne 
calyculata. 
12 Ascochyta cephalanthi Ell. & Evht. 
Sacc. Syll. Fung. 3: 392. 
Spots orbicular, brownish white with a narrow somewhat 
raised margin, 3-6 mm. in diameter; pycnidia epiphyllous- 
42—S. A. L. 
