雌球花 的英文怎麼說
中文拼音 [cíqiúhuā]
雌球花
英文
female cone (松樹)-
They damage female strobili during the interval between pollination and fertilization.
在傳粉與受精的間隔期間,他們毀壞了雌球花。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。For example , the spiral arrangement of scale - bract complexes on ovule - bearing pine cones , where the female reproductive organs of conifers are located , is important to the production of airflow patterns that spiral over the cone ' s surfaces , thereby passing airborne pollen from one scale to the next
例如,帶有胚珠的松球的鱗苞綜合體的螺旋狀安排,亦即松柏目植物雌性殖器官的所在位置,對于氣流模式的形成與產生殊為重要,而這些氣流模式在松球的表現盤旋上升,從而把在空氣中飛行的花粉從一個鱗苞傳播至下一個鱗苞。The probability of any air-borne pollen grain impacting a female strobilus is in any case very small.
任何在空氣中飄浮的花粉粒粘著于雌球花的幾率,在任何情況下都是很小的。In spring, the pine tree bears yellow male cones and green female cones
在春季,長出黃色的雄性球花及綠色的雌性球花。Morphology all ephedra species from china are illustrated with great details on male and female cones. the photographs provide valuable information of characters including peduncle of cone, bract, and micropylar tube etc. for classification and identification of ephedra species from china
2 、形態學提供了中國麻黃屬種類的標本(包括模式標本)照片資料及中國麻黃屬植物的雌球花和雄球花的照片資料,為麻黃屬分類和系統學研究提供了證據。In the most extreme condition in uni - ovulate cone, the female reproductive unit ( fru ) occupies the position of the terminal bud. an evolutionary trend of reduction is supported in the genus from tri - ovulate to uni - ovulate cone, in which the bract number and seed number are reduced, and the seed size and seed surface sculpture are increasing
總之,麻黃屬雌球花有簡化的趨勢,伴隨著這種趨勢,雌球博士學位論文中國麻黃屬植物的分類? ?兼論麻黃屬的演化花苞片數目減少、種子數目減少、種子體積增大、表面復雜度增加。分享友人