%0 Journal Article
%A KONG Dong-Rui
%A LI Lu
%T Microsporogenesis,Male Gametogenesis and Pollen Morphology of <em>Gonocaryum lobbianum</em>
%D 2017
%R 10.7525/j.issn.1673-5102.2017.02.004
%J Bulletin of Botanical Research
%P 181-184
%V 37
%N 2
%X We studied the microsporogenesis, male gametogenesis and pollen morphology of <em>Gonocaryum lobbianum</em> using light microscopy and scanning electron microscopy to enrich the embryological and palynological data of Cardiopteridaceae s.l. The main results are as follows:(1) The anther is tetrasporangiate; (2) The anther wall comprises the epidermis, fibrous endothecium, ephemeral middle layer and secretory tapetum with 2-4 nuclei in each cell; (3) The microspore mother cell undergo meiosis, cytokinesis is simultaneous and the tetrads are tetrahedral; (4) The mature pollen grains are two-celled; (5) The pollen grains are cryptoaperturate with three pores and the extin is reticulate. The characters of microsporogenesis and male gametogenesis of <em>Gonocaryum</em> are similar to those of <em>Cardiopteris</em> with a little difference. <em>G.lobbianum</em> is almost the same as the other species in the pollen morphological characters.
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2017.02.004