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Observation on Megasporogenesis, Microsporogenesis and Development of Female and Male Gametophytes of Catalpa speciosa Warder
LI Li-Ping;LIU Hai-Yan;CHEN Fa-Ju*
Bulletin of Botanical Research . 2013, (2): 145 -148 .  DOI: 10.7525/j.issn.1673-5102.2013.02.004