TY - J Syst Evol A1 - Wang Zhong-Ren, Sun Ching-San T1 - Chromosome counts in some Chinese ferns Y1 - 1982-02-18 JF - Journal of Systematics and Evolution JO - J Syst Evol SP - 59 EP - 62 VL - 20 IS - 1 UR - https://www.jse.ac.cn N1 - ER -