Flowers of the Apocynaceae (milkweed family) have complex structures and pollination mechanisms. Pollen removal and deposition in Angadenia, Pentalinon, and Echites are similar, with anthers releasing pollen onto the sterile style head. The mid‐style head excretes a glue that coats the mouthparts of vistors to aid in the transfer of pollen. Subsequent probes may deposit pollen on the receptive stigmatic surface on the lowest part of the style head, with fertilization resulting after pollination by compatible pollen.

中文翻译：

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一次钓鱼探险，以发现几种亚热带夹竹桃科的传粉者。

夹竹桃科（乳草科）的花具有复杂的结构和授粉机制。Angadenia、Pentalinon和Echites的花粉去除和沉积是相似的，花药将花粉释放到不育花头上。中型头部分泌一种胶水，覆盖在游客的口器上，以帮助花粉转移。随后的探针可能将花粉沉积在花柱头下部的接受柱头表面上，在相容的花粉授粉后受精。