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Hemianatropous Ovule and Allium Type Embryo-sac of Vitex rotundifolia(Lamiaceae)
KONG Dong-Rui1；WANG Zhong-Li1；SONG Yi-Gang2
Bulletin of Botanical Research . 2015, (6): 832 -835 .  DOI: 10.7525/j.issn.1673-5102.2015.06.007