TY - Bulletin of Botanical Research A1 - LI Li-Ping;LIU Hai-Yan;CHEN Fa-Ju* T1 - Observation on Megasporogenesis, Microsporogenesis and Development of Female and Male Gametophytes of Catalpa speciosa Warder Y1 - 2013-03-20 JF - Bulletin of Botanical Research JO - Bulletin of Botanical Research SP - 145 EP - 148 VL - 33 IS - 2 UR - https://bbr.nefu.edu.cn N1 - 10.7525/j.issn.1673-5102.2013.02.004 ER -