A NEW SPECIES OF PLASMOPARA ON ROSACEAE
轴霜霉一新种——地榆轴霜霉

Plasmopara sanguisorbae C. J. Li, Z. Q. Yuan et Z. Y. Zhao sp. nov. on Sanguisorba officinalis L. collected from Xinjiang is reported. It is first record of Plasmopara parasitizing on the family of Rosaceae. Latin and Chinese diagnoses are given for the new taxon. Type specimen is deposited in Herbarium of Mycology, August 1st Agricultural College (HMAAC 001210), Xinjiang, China.