Two new synonymies and a new combination in the genus Ptilagrostis Griseb. (Poaceae) from China
中国细柄茅属(禾本科)两个新异名和一个新组合

Based on both herbarium and field observations, Ptilagrostis dichotoma Keng ex Tzvel. and P. junatovii Grub. are reduced to synonymy of P. mongholica (Turcz. ex Trin.) Griseb. and of P. concinna (Hook. f.) Roshev. Respectively, and a new combination, P. roshevitsiana (Tzvel.) L. B. Cai, is proposed.