20 
JOURNAL OF MYCOLOGY. 
[Vol. Ill, No. 2, 
Cercospora Stillingiae, E. & E.—On leaves of Stillingia sebifera , 
Point a’ la Haclie, La., November, 1886. Rev. A. 13. Langlois, No. 846. 
Spots amphigenous, suborbicular, dark brown, with a narrow, dark 
border, 2—4 millim.; liyphse amphigr-nous 1 , but mostly epiphyllous, very 
short (10—15 /'-), colored, arising from a distinct tubercular base ; conidia 
cylindrical, slightly curved, without any distinct nuclei or septa, 25—35 x 
24—3 Tufts of hyphse thickly scattered on the spots. 
Cercospora rubrotincta, E. & E.—On leaves of Persicct vulgaris , 
Point a’ la Hache, La., November, 1886. Rev. A. 13. Langlois, No. 524. 
Spots amphigenous, dark red, with a lighter red border and the leaf more 
or less stained and blotched with red; hvphse amphigenous, short 
(12—15 /^), olivaceous, fasciculate, forming loose, olivaceous tufts; 
conidia linear-subclavate, nucleate, slightly smoky, 35—50 x 24—3 p. 
Very different from C. persica, Sacc., which occurs on the same leaves 
and is a good Cylindrosporium. Not to be confounded with Clasterispo- 
rium Amygdalearum, Pass. 
Cercospora Lipple, E. & E.—On leaves of Lippia nodiflora , Loui¬ 
siana, November, 1886. Langlois, No. 826. Spots amphigenous, grayish, 
round, with a definite, narrow, raised border, 2—3 millim. in diam,; 
hyph*e amphigenous, fasciculate on the tubercular base, pale brown, 
continuous, undulate and paler above, 35—50 x 3—4 /■* ; conidia slender- 
obclavate, subhyaline, nucleate, 70—100 x 3 p. 
Cercospora fraxlnjtes, E. & E.—On living leaves of Fraxmus , 
Bohemia, Plaquemines Co., La., November, 1886. Rev. A. B. Langlois, 
No. 809. Spots amphigenous, dark brown, suborbicular and subindef¬ 
inite, 3—4 millim. across, not abundant; hyphae amphigenous. densely 
fasciculate, short (15—30 x 2i— 3 p), browning, crooked, forming numer¬ 
ous small, black tufts thickly scattered over the spots; conidia subhy¬ 
aline, cylindrical or slightly attenuated above, nucleate, 35—60 x 2|—3 p. 
C. superflua , E. & H., has broader, yellow-brown conidia. C. Fraxini 
(DC.) according to de Thumen’s specimens, is also different. 
CercosporaHeliantiii, E.& E.—Columbia, Mo.,October, 1886. Prof. 
S. M.Tracy,No.208. Spotsnone; liyphaehypophyllous,fasciculate,olive- 
brown, nucleate, becoming septate, crooked above, 70 -90 x 5—6 P, form¬ 
ing loose, olivaceous, indefinitely-limited patches; conidia obclavate, 
olivaceous, nucleate, becoming 3--6-septate, 70—110 x 5—6 p. 
Cercospora populina. E. & E.—On leaves of Populus alba and P. 
angulata , Point a’ la Ilaclie, La., November, 1886. Rev. A. B. Langlois, 
Nos. 818 and 819. Spots amphigenous, irregular and subconfluent (2—5 
millim.), dark brown, becoming gray or whitish; liyphse densely 
fasciculate, short (12—15 p), brownish, forming numerous black tufts 
thickly scattered over the surface of the spots; conidia cylindrical, 
slightly curved, scarcely attenuated above, hyaline, becoming faintly 
1—3-sept ate, 25—40 x 2 \—3 P. In the form on P. alba the spots are 
scarcely discernible below on account of the down on the lower surface 
of the leaf. Very closely allied to C. fraxinites, only differing in habitat, 
mostly epiphyllous growth and shorter conidia. 
