adj.三棱的
网络 三叉孢子; 三射线; 三裂沟口粒
Biyophyte spores have three types of aperture, the trilete is original one, the monolete is the evolutionary character and the katalept is mostly common one.
苔藓孢子的外壁纹饰不同,一般认为孢子外壁光滑是进化性状,外壁上各种突起排列密集的则较为原始。