TY - J Syst Evol A1 - Yang Xi-Ling T1 - New taxa of Roegneria (Gramineae) Y1 - 1980-05-18 JF - Journal of Systematics and Evolution JO - J Syst Evol SP - 253 EP - 253 VL - 18 IS - 2 UR - https://www.jse.ac.cn N1 - ER -