MILDEWS, RUSTS AND SMUTS 
163 
JUNCUS 
Puccinia junci, Winter. 
Uredospores. Sori minute, scattered, rusty; spores 
minutely aculeate, pale brown, 16—28 x 15—20 p. 
Teleutospores. Sori scattered, minute, for a long time 
covered by the epidermis, blackish ; spores club-shaped or 
somewhat spindle-shaped, tip much thickened, smooth, 
pale-brown, tip darker, 35—60 x 12—24 pedicel brownish, 
persistent. 
On Juncus compressus and /. gerardi. Germany, Den¬ 
mark and Norway. 
CAREX 
Puccinia schroeteriana, Kleb. 
Aecidia. On the under surface of the leaves, on roundish, 
brownish-purple, yellow-edged patches, edge torn, whitish ; 
spores minutely warted, orange, 13—22 p. 
Uredospores. On both sides of the leaf, minute, grouped 
on yellow spots ; spores echinulate, brownish, 17—24 p 
or 21—27 X 16—19 p. 
Teleutospores. Sori on small yellowish spots; spores club- 
shaped, tip much thickened and deeper coloured, con¬ 
stricted, smooth, pale brown, 38—55 X 16—22 p. 
Aecidia on leaves of Serratula tinctoria. 
Uredospores and teleutospores on Carex flava and C. 
vulpina. Germany and Austria. 
Puccinia silvatica, Schroet. 
Pycnidia. Arranged in minute, honey-coloured groups. 
Aecidia. On the under surface of the leaf, on yellow or 
brownish patches, often causing distortion, cup-shaped, 
edge recurved, torn, white ; spores almost smooth, orange, 
14—21 p. 
Uredospores. Sori minute, on the under surface of the 
leaf ; spores echinulate, brown, 20—27 x 15—22 p. 
Teleutospores. Sori minute, blackish, on the under 
surface of the leaf ; spores club-shaped, tip much thickened, 
base narrowed, pale brown, tip darker, 35—55 x 12—18 p, 
pedicel tinged brown, firm. 
Aecidia on Taraxacum, Crepis, Lappa, and Senecio. 
Uredospores and teleutospores on Carex alha, C. gooden- 
oughii, C. oederi, C. silvatica, and other species. 
Europe generally. 
Puccinia opizii, Bubak. 
Pycnidia. On the upper surface of the leaf. 
Aecidia. On the under surface of the leaf, on purplish, 
