bitegmic
基本解釋
- 雙珠皮
英漢例句
- Simple ovary,the placentation is brink.The ovules are campylotropous.The ovule is bitegmic and crassinucellate.
矮沙冬青子房單心皮1室,邊緣胎座,彎生胚珠,胚珠具雙珠被、厚珠心。 - Simple ovary, the placentation is brink.The ovules are campylotropous.The ovule is bitegmic and crassinucellate.The megaspore archesporium is initiated from sub-epidermis of nucellus.
摘要矮沙冬青子房單心皮1室，邊緣胎座，彎生胚珠，胚珠具雙珠被、厚珠心。 - ovule solitary, basilateral, hemitropous, bitegmic;
胚珠單生，基側(cè)，橫生，雙珠被； - ovules 2 per locule, pendent, anatropous, bitegmic, crassinucellar;
胚珠每室2，下垂，倒生，具雙珠被，具厚珠心；