Betulaceae

英

美

网络樺木科; 桦木科; 桦木料; 桦科; 桦木

A genus of trees of the family Betulaceae ( such as birches).
桦木科的一个乔木属（例如桦树）。
Ulmaceae, Betulaceae and Leguminosae are the predominant families of the leaf flora both in species diversity and specimen quantity.
被子植物中，榆科、桦木科、豆科无论属种或者化石数量都是最多；
In the present thesis, a detailed review of the literature was given on the Betulaceae.
本文对桦木种植物的研究历史作了详细的总结。
The organization and development of the female flower and the type and synchrony of embryogenesis in Betulaceae are also discussed.
本文同时对雌花的结构和发育特点在桦木科各属中的异同、白桦胚胎发生类型及胚胎发育进程的同步性进行了讨论。
Chromosome Numbers of Two Threatened Species of Betulaceae
桦木科两种濒危植物的染色体数目
The Classification and Distribution of Betulaceae in Gansu
甘肃省桦木科植物的分类和分布
Development of ovules and embryo sacs in Ostrya virginiana ( betulaceae) and its systematic significance
Ostryavirginiana（Betulaceae）的胚珠和胚囊发育及其系统学意义