ELISHA MITCHELL SCIENTIFIC SOCIETY. 63 



On leaves of Dolichos sinensis^ 1246, Uniontown, Jul}- 

 II, 1890, Atkinson. 



67. Cercospora Diospyri Thiim var. ferruginosa n. 

 var. Hyph?e tufted, tufts numerous, collected into olive 

 black orbicular patches on under side of the leaf. Leaves 

 pale green above at the affected places. Hyphie ferrugi- 

 neous, irregularly flexuous, closely septate, often branched, 

 rough, jagged, strongly notched and papillate, 50 — 150 X 

 4, 5. Conidia obclavate, tapering abruptly toward base, 

 more gradually toward apex, faintly olive yellowish to 

 ferrugineous and dark brown, i — 12 or more septate, septa 

 close and more distinct toward base, in age strongly con- 

 stricted at septa and nucleolate, 20 — 80 X 4, 5 — 5, 5 at 

 base. The conidia are much stouter than in 1273 Myc. 

 Univ. and darker colored even when young. Hyphse 

 there more slender and continuous as described by Ellis 

 (Jour. Myc, Vol. i, p. 51). His description is apparently 

 taken from specimens in Thuemen's Myc. Univ., since it 

 ao;rees with the ones I have examined from that w^ork. 

 specimens collected by Langlois, 600, in Louisiana, agree 

 with my specimens from Alabama. 



On leaves of Diospyros Virginia na^ 2254, iVuburn, Sep- 

 tember 26, 1 89 1, Duggar. 



68. Cercospora sordida Sacc. Tufts of Hypha^ 

 forming angular patches limited by the veins, or covering 

 larger portions of the under side of the leaves, dirty grey 

 or nearly black, upper surface yellowish. Hyph^e sub- 

 fasciculate, divergent, subflexuous, nodulose, denticulate, 

 septate, guttulate, olive reddish brown, 20—70 X 4 — 4, 5. 

 Conidia faint olive reddish tinge, multiguttulate, multi- 

 septate, terete, curved or flexuous, 20 — no X 3, 5 — 4, 5. 



On leaves of Teconia radicans^ 2149, Auburn, Septem- 

 ber 13, 1801, xAk.tkinson. 



69. Cercospora fuscovirexs Sacc. Hypophyllous, 

 spots colored by hyphos dirty yellowish green, limited by 



