%0 Journal Article
%A KONG Dong-Rui
%A LI Lu
%A PENG Hua
%A ZHANG Zi-Yuan
%T Anther and Young Ovule Development in <i>Clematoclethra</i>(Actinidiaceae) with Taxonomic Implications
%D 2017
%R 10.7525/j.issn.1673-5102.2017.04.004
%J Bulletin of Botanical Research
%P 508-513
%V 37
%N 4
%X The anther and young ovule development of the genus <i>Clematoclethra</i> is reported for the first time. This research shows the following embryological features in <i>C.scandens</i> subsp. <i>scandens</i>. It has a six-layered anther wall with a basic type of development, including an epidermis, two middle layers, two glandular tapetum layers, a fibrous thickened endothecium in mature anther. It is characteristic of owning successive cytokinesis during microsporogenesis, tetrahedral tetrads, and 2-celled pollen grains; a unitegmic-tenuinucellate and nearly anatropous young ovule, a micropyle formed by unitegument. The ovule in <i>Clematoclethra</i> is unitegument as well as in both <i>Actinidia</i> and <i>Saurauia</i>, while those of Theaceae family are bitegument. Therefore embryological data supports the viewpoint based on pollen morphology, cytology, and molecular data that <i>Clematoclethra</i> should be grouped into Actinidiaceae, and together with other two genera(<i>Actinidia</i> and <i>Saurauia</i>), constitutes a well-supported monophyly.
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2017.04.004