MILDEWS, RUSTS AND SMUTS 
165 
Uredospores. Sori oblong, on pale spots, generally on 
the upper surface of the leaf, orange ; spores minutely 
echinulate, yellow, 18—22 p. 
Teleutospores. Sori minute, covered by the epidermis, 
on the upper surface of the leaf ; spores more or less club- 
shaped, tip slightly thickened, base, narrowed, smooth, 
brown, 35—^45 x 13^—20 p, pedicel ver}^ short. 
Aecidium on Thalictrum alpinum. 
Uredospore and teletuospore on Anthoxanthum odoratum. 
Sweden and Norway. 
CALAMAGROSTIS 
Puccinia pygmaea, Erikss. 
Uredospores. Sori minute, oblong, grouped on yellowish 
spots on the under surface of the leaf; spores minutely 
echinulate, yellowish, 24-—32 p, or 27—32 X 20—24 p, 
paraphyses colourless, tip thickened. 
Teleutospores. Sori very minute, scattered or in lines, 
remaining covered ; spores club-shaped, tip usually trun¬ 
cate, slightly thickened, base narrowed, smooth, pale 
brown, tip darker, 32—42 X 12— t6 p, pedicel very short. 
On leaves of Calarnagrostis epigeios, C. arundinacea, and 
C. halleriana. Sweden, Finland, and Germany. 
CYNODON 
Puccinia cynodontis, Desm. 
Uredospores. Sori minute, scattered or in lines ; spores 
very minutely echinulate, pale brown, 19—28 p diam. 
Teleutospores. Sori scattered or in lines, black ; spores 
elliptical or oblong, tip usually narrowed, much thickened, 
base rounded or slightly narrowed, smooth, brown, 30—60 
X 15—25 p, pedicel thick, brownish, long, persistent. 
On Cynodon dactylus. 
MILIUM 
Puccinia milii, Erikss. 
Uredospores. Sori on yellowish spots, scattered, or in 
lines, orange ; spores echinulate, yellowish-brown, 20— 
26 p diam. 
Teleutospores. Sori oblong, minute, scattered or clus¬ 
tered, black : spores oblong club-shaped, tip blunt, scarcely 
thickened, base narrowed, smooth, pale brown, 28—^41 
X 13—21 p, pedicel very short. 
On Milnim effusum. Sweden and Norway 
