1. the outer of the two major layers forming the walls of some spores and especially pollen grains
exine 片语
片语
exine evolution纹饰演化
Pollen exine花粉外壁
l exine外壁
exine extine外膜
exine ultrastructure外壁超微结构
exine ornamentation外壁纹饰
tunica adventitia[解剖] 外膜
exine e外壁
exine sculpture外壁纹饰
involucra皮膜;外膜
exine exine外膜
exine 例句
英汉例句
method: pollen exine ultrastructure were compared for 18 populations growing under in the same environment by means of scanning electron microscope(sem).
方法:借助扫描电镜对栽培在同一生境下的18个半夏居群的花粉形态、大小及表面纹饰等特征进行观测比较。
alveolae of the proximal exine are smaller and less regular in form than those at equatorial region.