138 THIRTY-FIFTH REPORT ON THE STATE MUSEUM. 
SEeproria Crrsit, Wiessi. 
Living leaves of Canada thistle, Cirsxwm arvense. West Albany. 
June, 
SEPTORIA MUSIVA, 2. sp. 
Spots small, numerous, angular, brown, usually obscurely 
mottled by minute angular patches of paler color ; perithecia few, 
epiphyllous, depressed, black or blackish; spores cylindrical, 
shghtly curved, colorless, sometimes obscurely triseptate, -0012’ 
—-0018’ long. 
Living leaves of cottonwood, Populus monilifera. Albany. July. 
This species differs from S. Populi, Desm., in the character of 
the spots which are variegated like mosaic work, and in the septa- 
tion of the spores. 
rubra 
PHYLLOSTICTA CRATEGH, 7. Sp. 
Spots small, angular or irregular, sometimes confluent, red ; 
perithecia one to five on aspot, epiphyllous, minute, black; spores 
broadly elliptical or subglobose, colorless, -0003’ long, -00028’ 
broad. 
Living leaves of thorn bushes, Crategus tomentosa. Albany. 
July. 
PHYLLOSTICTA VARIABILIS, 7. sp. 
Spots small or large, suborbicular or irregular, brown or reddish- 
brown, the center at length dotted with whitish arid areas or be- 
coming entirely arid, finally falling away; perithecia minute, 
epiphyllous, black; spores oblong-elliptical, colorless, -0002’— 
-0003’ long, -0001’—-00012’ broad. 
Living leaves of purple-flowered raspberry, Rubus odoratus. 
Albany. September. 
PROTOMYCES MACROSPORUS, Ung. 
Living leaves and stems of the great ragweed, Amdrosia trifida. 
Albany. June. ; 
When this fungus attacks the stems it forms prominent swell. 
ings which are generally about half an inch long and nearly as 
broad and of a pale-green color. The spores are globose or sub- 
globose and vary considerably in size, ranging from -0014’—-0024’ 
in diameter. They are imbedded in the tissues of the swellings. 
UsrinaGo PALLIDA, Schret. 
Flowers of wild buckwheat, Polygonum cilinode. 
Three species of smut occur on our knot-weeds. Ustilago 
utriculosa is common on Polygonum Pennsylvaniewm, U. Can- 
dollei is found on P. sagittatum and U. pallida on P. cilinode. 
Catskill mountains and Grafton, Rensselaer county. 
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