102 
MILDEWS, RUSTS AND SMUTS 
small, with a white, torn recurved edge ; spores minutel}^ 
warted, orange, 20—30 x 16—24 p. 
Uredospores. Sori minute, cinnamon, on both sides of the 
leaf; spores subglobose or elliptical, echinulate, brown, 
24—30 X 21—26 p. 
Teleutospores. Sori minute, mostly solitary, often on 
minute yellowish spots, on both sides of the leaf, dusky 
brown ; spores elliptical or ovoid, ends rounded, tip not 
thickened, slightly constricted at the septum, very minutely 
warted, chestnut-brown, 33—48 x 22—30 p, epispore 
thin, pedicel short. 
Syn. Puccinia lapsanae, Fckl. ; Plowr., Ured., p. 148. 
On leaves of Crepis paludosa and Lapsana communis. 
Puccinia intybi, Syd. 
Aecidia. Scattered or in small groups on the under 
surface of the leaves, cup-shaped, yellow, with whitish, 
reflexed, torn edges ; spores subglobose, very minutely 
warted, orange, 19—25 x 15—20 p. 
Uredospores. Sori scattered, minute, usually most deve¬ 
loped on the upper surface of the leaf, powdery, cinnamon ; 
spores subglobose, echinulate, chestnut-brown, 24—30 p 
diam. 
Teleuto spores. Sori similar to those of the uredospores, 
dusky brown ; spores elliptical or oblong, rounded at both 
ends, tip not thickened, scarcely constricted at the septum, 
minutely warted, dark brown, 25—37 x 15—22 p, epispore 
thin, pedicel very short as a rule. 
Syn. Puccinia variabilis, var. intybi, Juel. 
On living leaves of Crepis praemorsa. Britain and Ger¬ 
many. 
HELIANTHUS 
Puccinia helianthi, Schw. 
Uredospores. Sori scattered or clustered, powdery, cinna¬ 
mon, mostly on the under surface of the leaf ; spores sub¬ 
globose or ellipsoid, aculeate, yellowish-brown, 22—27 p. 
Teleuto spores. Sori scattered or clustered, pulvinate, 
compact, dusky, generally on the under surface of the leaf ; 
spores elliptical or oblong, tip thickened and pale, con¬ 
stricted at the septum, base rounded, smootli, brown, 35 
X 52 X 20—27 p, pedicel stout, long, persistent. 
On leaves of cultivated sunflower —Helianthus annuus. 
Britain, Europe generally, on various species of Helianthus ; 
N. America. 
