PERONOSPORA PLANTAGINIS 11. Sp.
Mycelium parasitic in well-defined yellow areas of the leaf, occupying the entire width and a length of 1-3 cm.; conidiophores usually solitary, long exserted, irregularly 5-6 times dichotomous ; ultimate ramulae short, unequal, recurved, 4-12p long ; conidia narrowly oval or lemon-shaped, pointed at each end, dark, almost black by reflected light, brownish violet by transmitted light, 40 44 x 16—I p. gospore unknown.
On leaves of Plantago aristata, Auburn, Alabama, May, 1896. F. S. Earle.