July 1905] 
Yearbook of Information, Etc. 
171 
Pers. and P. simplex Eriks. & Henn. occurred in North-western 
and Central Russia, but not destructively. Ergot, Claviceps pur¬ 
purea Tul. was abundant in Kursk government. 
Corn. In Simbirsk, Kursk, Kherson and Poltava govern¬ 
ments and near Batum in the Caucasus smut, Ustilago maydis 
DC. was abundant upon corn. 
Proso (Panicum miliaceum L.) was injured by smut, Usti- 
lago panici miliacei Wint. in Kherson and Kursk governments. 
II. GRASSES AND FORAGE CROPS. 
Clover. Uromyces trifolii Lev. was abundant in all but the 
southwestern part of Russia. Erysiphe martii Lev., and Perono- 
spora trifolio ruin DeBary although often very destructive were 
not injurious in 1903. Phyllacliora trifolii Fuckel was very in¬ 
jurious in Pskoff, Smolensk and Kursk governments, affecting 
T. re pens more seriously than the other clovers. 
Timothy grass. Ergot, Claviceps microcephala Wallr. and 
Sc ole cotrichum graminis Fuck, occurred both in Kursk govern¬ 
ment and the former also in Pskoff government. 
Triticum repens L. and T. cristatum were affected seriously 
by Epichloe typhina Tul. in Kreson government. The same dis¬ 
ease affected timothy grass in Central Russia. 
Azvnless Brome Grass. From Kursk government was re¬ 
ported a disease which proved to be due to bacteria compared 
by the author to the bacterial disease of sorghum in America. 
Alfalfa. In Stavropol government in southeastern Russia 
alfalfa suffered somewhat with Pseudopeziza trifolii Fuck., while 
Septoria medicaginis Rob. & Desm. was reported from near Smo¬ 
lensk in West-Central Russia. 
Festuca elatior as well as wheat and other grasses was af¬ 
fected by Septoria tritici Desm. in Stavropol government. 
III. VEGETABLES AND GARDEN PLANTS. 
Tricholoma sordidum Fr. growing in the soil caused the 
death of vegetables planted therein in Moscow government. 
Potato. Phytophthora infestans DeB. was very injurious in 
Central and Northern Russia in 1902; in 1903, however, it was 
rare in those regions, and not generally destructive anywhere 
in Russia proper. In Keletz government in the low lands 
the loss reached 20 to 80 per cent, the early sorts being most 
susceptible. The varieties Gratia and Blanc-Riesen proved most 
resistent. In points in Transcaucasus the disease was very de¬ 
structive. 
Cercospora concors Sacc. known before only near Berlin, 
was discovered in Russia in 1900 and in 1903 was found in three 
rather widely separated governments of Central and Northwestern 
Russia. 
