266 Wisconsin Academy of Sciences, Arts, and Letters. 
Ramularia spiraeae Pk. On Physocarpus opulifolius. Maiden 
Pock. Also observed at Dresser Junction, but too late in the 
season to secure good specimens. 
Ramularia icxnophila n. sp. 
Spots at first indefinite, green, angular, becoming suborbicu- 
lar to irregular and more definite but not margined; conidio- 
phores hypophyllous, hyaline, fasciculate from a more or less 
prominent stromatic base, straight or somewhat bent, continuous, 
25-55 x 3-4/x; conidia hyaline, apical or subapieal, cylindrical, 
straight, 1-3 septate, 18-45 x 3-4/x. On Viola canadensis Phlox, 
Wisconsin, July 1914. It may be that more knowledge of the 
Ramularias occurring on violets will bring together this and sev¬ 
eral other described species. The apex of the conidiophore fre¬ 
quently grows beyond the point where the conidium is borne. 
Cercosporella scirpina n. sp. 
On elongate brown areas which become confluent; conidio- 
phores in small tufts disposed in long intervenular lines, hya¬ 
line, continuous, subulate to cylindrical, often bent and denticu¬ 
late above, 15-22 x 4-7/x; conidia hyaline, straight or curved, ob- 
clavate- cylindrical, obscurely septate, 50-122 x 3/x. On leaves 
of Scirpus pedicellatus. St. Croix Falls, August 25th, 1914. 
Cercosporella filipormis n. sp. 
Spots linear, brown, immarginate, %-4 cm. x 1-2 mm.; conid- 
iophores amphigenous, fasciculate, hyaline, continuous, somewhat 
lax, 10-15 x 1-2/x; conidia apical, filiform, hyaline, more or less 
curved and lax, sometimes pseudoseptate, 30-75 x 1-2/x. On 
leaves of Anemone patens var. Wolfgangima. Millston, Wis¬ 
consin, June, 1914. 
Cercosporella trichophila n. sp. 
Effused over indefinite areas on the lower surface of the leaves 
which are not discolored; mycelium hyaline, superficial, repent 
and ascending the trichomes ; conidiophores racemose on the hy- 
phae, hyaline, cylindrical to nodulose, straight, often oblique or 
denticulate at the apex, 10-15 x 3-5/x; conidia hyaline, obclavate- 
cylindrical, curved, pluriseptate, 45-75 x 3/x. On Fraximus 
pennsylvanica. Bridgeport, Wisconsin, August 1914. The conid¬ 
iophores and conidia develop especially on the trichomicolous hy- 
