142 
MILDEWS, RUSTS AND SMUTS 
shaped, edge white, torn ; spores angularly globose, min 
utely warted, orange, 18^—25 p diam. 
Uredospores Sori. scattered, minute, brown ; spores 
subglobose or elliptical, echinulate, pale brown, 25—28 p. 
Teleutospores. Sori scattered, circular or oblong, covered 
by the split epidermis, convex, blackish ; spores club- 
shaped, tip rounded or narrowed, much thickened, slightly 
constricted at the septum, base narrowed, smooth, brown, 
tip darker, 35-—56 X 18—24 p, pedicel firm, tinged brown. 
Aecidia on Carduiis palustris. 
Uredospores and teleutospores on Carex dioica, C. daval- 
liana and C. alba. 
Puecinia schoeleriana, Plowr. and Magn.; Plowr., Ured., 
p. 171. 
Pycnidia. On the upper surface of the leaf, orange. 
Aecidia. On the under surface of the leaf, on large, 
yellowish or brownish-yellow spots, cup-shaped, edge 
whitish, torn ; spores globose or angularly globose, very 
delicately echinulate, orange, 15—20 p diam. 
Uredospores. vSori most frequently on the under surface 
of the leaf, on yellow spots, minute scattered, circular or 
oblong, powdery, surrounded by the ruptured epidermis, 
pale brown, 24—30 x i8-—25 p. 
Teleutospores. On the under surface of the leaf, scattered, 
or here and there, in clusters, minute, oblong, surrounded 
by the split epidermis, blackish ; spores club-shaped or 
spindle-shaped, tip rounded or conical, much thickened, 
slightly constricted at the septum, base narrowed, smooth, 
brown, tip darkest, 50—80 X 18—25 p, pedicel tinged 
brown, persistent. 
Syn. Aecidium jacohaeae, Grev. 
Aecidium compositarum, Mart. 
Aecidia on Ragwort— Senecia jvcohaea 
Uredospores and teleutospores on Carex arenaria. 
Britain, Germany, Holland, Russia, 
Puecinia arenariicola, Plowr., Ured., p. 170. 
Aecidia. Edge prominent, torn, whitish, on yellow spots 
with a purple edge, mostly on the upper surface of the leaves, 
spots circular on the leaves, elongated on the stems ; spores 
subglobose or polygonal, nearly smooth, yellow, 15—20 p 
diam. 
Uredospores. Sori linear or oblong and bursting through, 
brown, surrounded by the torn epidermis, seated on yel- 
