474 
Cercospora Sracuypis E. & E. 
On Stachys palustris, Ames, Iowa, June, 1895. (Coll. Geo. 
W. Carver; Comm. Prof. L. H. Pammel.) 
Spots numerous, small, pale rust-color, 1 mm. diam., with a 
narrow dark border; hyphae amphigenous, cespitose, few ina 
tuft, slender, septate, brown, subgeniculate, mostly narrowly un- 
dulate or crisped above, 60-75 X 34-4 2; conidia not well matured 
and mostly still attached to the hyphae. 
Has the general outward appearance of Cylindrosporium Stach- 
ydis EN. J. M., 7: 277. 1893, but is a very different thing. 
CERCOSPORA INCARNATA FE, & E. 
On leaves of Asclepias incarnata, Oberlin, Ohio, August, 1895. 
(Kelsey, no. 880.) 
Amphigenous; spots orbicular, 2-3 mm. diam., dirty white 
with a dark border above, brown below; hyphae cespitose, short, 
18-254 yp, entire or slightly toothed above; conidia slightly 
colored, attenuated and often shrivelled above, 5-10-septate, 25— 
‘60X 334-4 pe. 
CEercosporA GavyopuyTi E. & E. 
On Gayophytum diffusum, Yosemite, Calif., June, 1895. (Dr. 
J.J. Davis, no. 9510.) 
Spots brownish, indefinite, extending along the sides of the 
leaf or across the upper part, finally occupying the entire surface 
and killing the leaf; hyphae amphigenous, cespitose, subhyaline, 
continuous, simple, subdenticulate and subgeniculate above, 
20-30% 3%-4 p»; conidia oblong, smoky-brown, nucleate, unisep- 
tate, 20-35 X5-6 py. 
CERCOSPORA COLEOSANTHI E. & E. 
On Coleosanthus Californicus, Jackson, Amador Co., Calif. 
( Geo. Hansen, no. 1396. ) 
Spots suborbicular, grayish brown, 2-4 mm. diam., often con- 
fluent, margin narrow, darker; tufts amphigenous, thickly scat- 
tered over the spots, gray; conidia cylindrical, sub-obtuse, nucle- — 
ate, 30-40X21%4-3 yw, sometimes attenuated above and longer 
( 50-60 p*)- 
CrrcosporA Tracopoconis E. & E. 
On leaves of Lragopogon porrifolius, Emma, Mo., September 
22, 1897. (Rev. C. H. Demetrio, no. 613.) Are ea, 
