bract bud 中文意思是什麼
bract bud
解釋
苞芽-
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