. 251 
PHoma AMARANTHI. Spots large, indefinite; pycnidia dark brown, 
irregular, often confluent, prominent, much scattered; spores 
oval, hyaline, 13-16” by 10-12. On stems of Amarantus 
chlomstachys. New Brunswick, N. J., October, 1892. a Payee 
Kelsey. 
SePTORIA CHRYSANTHEMI. Spots well-defined, dark, equally con- 
spicuous upon both sides of the leaf; pycnidia scattered, ellip- 
soid (70-160 v.), pale brown; spores often bent with one end 
blunt, 14-30 by 1.5-2 », hyaline, 3-5-septate. On leaves of 
Chrysanthemum Leucanthemum. Milltown, N. J., June, 1892. 
F. L. Stevens. 
TUBERCULARIA Ruois. Spots large, brown, concentric, often con- 
fluent, becoming apparently worm-eaten; sporodochia disc- 
shaped, pinkish, scattered; spores hyaline, slightly curved, 6-8 
by 2-3. On leaves of Rhus radicans,L. New Brunswick, 
N. J., September, 1882. F. L. Stevens. 
Coryneum Ruos, Spots ill-defined, brownish-yellow; acervuli 
large, scattered; spores fusoid, triseptate, slightly bent, sub- 
‘ hyaline, 20-30 by 2.5-5 ». On leaves of Rhus radicans, L. 
New Brunswick, N. J., September, 1892. F. L. Stevens. 
CeRCospora Moitusinis. Spots indefinite, yellowish, turning to 
brown; hyphze amphigenous, fasciculate from a brownish 
base, sub-flexuous, 50-60 by 4-5 “. Conidia very long and 
slender, tapering, hyaline, slightly curved, multiseptate, 150- 
450 by 3-4” On leaves of Mollugo verticillata, L. Short 
Hills, N. J., September, 1892. 
Cercospora ArcTI-AMBROSIE. Spots minute, brown, angular, usu- 
ally with a white center; hyphae amphigenous, fasciculate from 
a dark base, geniculate, cylindrical, 80-100 by 3-5“; conidia 
hyaline, curved, tapering, multiseptate, 50-125 by 2.5-3.5 ¢ ve 
On leaves of Arctium Lappa and Ambrosia trifida. New Bruns- 
wick, N. J., September, 1892. F. L. Stevens. 
CoLterorricuum Xanrut. Acervuli very large, the affected portion 
of the stem swollen, often bent, and the surface having a pink 
color. Setze stout, bent, septate, not numerous ; spores oblong, 
Straight, 12-15 by 4-5 ». On stems of Xanthium Canadense. 
Near Cape May, N. J., September, 1892. : 
