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Bulletin of Botanical Research ›› 2015, Vol. 35 ›› Issue (6): 832-835.doi: 10.7525/j.issn.1673-5102.2015.06.007

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Hemianatropous Ovule and Allium Type Embryo-sac of Vitex rotundifolia(Lamiaceae)

KONG Dong-Rui1;WANG Zhong-Li1;SONG Yi-Gang2   

  1. 1.School of Life Science,Ludong University,Yantai 264025;
    2.Shanghai Chenshan Plant Science Research Center,Shanghai 201602
  • Online:2015-11-20 Published:2016-01-18
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Abstract: We studied the development of the ovule and embryo-sac of Vitex rotundifolia by paraffin sections to add the embryological data of Viticoideae. The ovule is hemianatropous, unitegmic and tenuinucellate. The endothelium is present. Development of the embryo-sac is of Allium type which may be derived from the monosporic Polygonum type. Allium type embryo-sac in V.rotundifolia is first reported in Viticoideae as well as the whole Lamiaceae.

Key words: embryo-sac development, ovule development, Vitex rotundifolia

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