球型胚 的英文怎麼說
中文拼音 [qiúxíngpēi]
球型胚
英文
global embryo-
Ontogeny three types of female cones of ephedra are recognized according to the number of seeds per cone, namely uni - ovulate cone, bi - ovulate cone, and tri - ovulate cone. it is suggested that terminal bud of primary cone axe is developed in tri - ovulate cone and disappears in bi - ovulate cone
這三種類型也代表了麻黃屬球花演化的三個階段，三胚珠球花代表麻黃屬雌球花的原始式樣，而單胚珠雌球花則為麻黃屬雌球花最為特化的式樣。
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