Seed cone morpho-anatomy

· The detailed seed cone morpho-anatomy demonstrates structural diversity. Both clades produce three distinct fleshy seed cone morphotypes (drupe-like, fleshy receptaculate and dacrydioid cones) using several structures. These functional structures demonstrate a shift between and sometimes within the genus makes the evolutionary history of seed cone complex in podocarps. The presence of a fleshy receptaculum is a characteristic feature of both clades. However, in species of Retrophyllum, Afrocarpus and some species of Nageia and Podocarpus form a fleshy sarcotesta-like seed coat and lack fleshy receptaculum.

详细种子锥形态解剖结构揭示了其结构多样性。两分支均通过多种结构产生三种独特的肉质种子锥形态（浆果状、肉质杯状和泪珠状锥）。这些功能性结构在属间以及有时在属内产生了变化，使得冷杉类植物的种子锥进化历程复杂化。肉质杯状的存在是两分支的共同特征。然而，在 Retrophyllum、Afrocarpus 以及某些 Nageia 和 Podocarpus 的物种中，形成了类似肉质肉质果皮的结构，并缺少肉质杯状。