MILDEWS. RUSTS AND SMUTS 
23 
Parasitic on plants belonging to the order Leguminosae, 
Trifolium, Medicago, Ononis, etc. . . trifoliorum. 
Parasitic on plants belonging to the order Scrophulariaceae. 
grisea. 
Parasitic on plants belonging to the order Violaceae. 
violae. 
Parasitic on plants belonging to the order Papaveraceae. 
arhorescens. 
[Parasitic on plants belonging to the order Violaceae, Viola 
tricolor, var. arvensis. Forming whitish patches on 
the leaves. Conidia broadly pear-shaped, with a 
broad wart at the tip, 80—95 X 40—45 [x, colourless ; 
oospore pale yellowish, globose, 36—^40 [x diam. 
megasperma, Berl.] 
[Parasitic on plants belonging to the order Linaceae. 
Tufts minute, white; conidia elliptical, becoming 
tinged brown, 18—20 x 13 (x ; oospores 22—26 (x 
diam. Uni, Schr.] 
[Parasitic on plants belonging to the order Compositae. 
Tufts effused, dense, white. Conidia broadly cylin¬ 
drical, colourless, 32—42 X 18—25 pL, oospores with 
a brown wall having a network, 30 |x diam. 
leptosperma, De Bary.] 
[Parasitic on plants belonging to the order Compositae. 
Patches small, dingy violet. Conidia elliptical, dingy 
lilac, 28—39 X 17—21 [x ; oospores brown. 
radii, De Bary], 
[Parasitic on the corollas of plants belonging to the order 
Campanulaceae. Patches grey. Conidia elongated 
elliptical, dingy lilac, 35—40 X 17—20 [x ; oospores 
with a thick, brown wall, 32—36 (x diam. 
corollae, Tranzsch.] 
[Parasitic on plants belonging to the order Solanaceae. 
Patches greyish. Conidia broadly pear-shaped, 22—27 
X 16 — 20 (X, pale grey . dubia, Berl. 
[Parasitic on plants belonging to the genus Gonolobia. 
Conidia broadly elliptical, pale greyish, 18—20 X 
16—21 pL . gonolobi, Lagerh.] 
[Parasitic on plants belonging to the genus Borreria. 
Tufts effused, dense, dingy white. Conidia ellipti¬ 
cal, 15—18 X 12—14 (X, colourless, borreriae, Lagerh.] 
[Parasitic on leaves of plants belonging to the order Eu- 
phorbiaceae. Patches dingy greyish-violet. Conidia 
broadly elliptical, dingy lilac, 22—26 X 16—20 fx.^ 
whippleae. Ell. and Ev.] 
