The Embryology of the Genus Kobresia(Cyperaceae)

The embryology of Kobresia was studied preliminarily. The development of megaspore and microspore, as well as the structure of ovule, is identical to that of other groups in Cyperaceae. The pollen of the genus is pseudomonad, the embryo sac is of Polygonum type, the endosperm is of nuclear type, and the embryogeny is of the Juncus variation of Onagrad type. These embryological characters are agreeable with those of the Cyperaceae. Therefore, the genus Kobresia and its related genera (Carex, Schoenoxiphium and Uncinia) should be retained in the family Cyperaceae other than raised as a separate family, Kobresiaceae.