چكيده لاتين :
Young buds and flowers of Onobrychis schahuensis were removed at different stages of anther development and sectioned with micotome after preparation. The anther and pollen development were studied
with light microscopy after staining. Results showed that some ultrastructural characters of anther and pollen grains were different from other Fabaceae members. The undifferentiated anther is ovoid-shaped and tetrasporangiated. The anther wall development follows the dicotyledonous type, which is composed of an epidermal layer, an endothelial layer, one middle layer and tapetum. The tapetum is secretory and its cells are uniseriate and uninucleate but some of them are binucleate. The microspore tetrads are tetrahedral. Pollen grains
are ovate, tricolporate and shed at a bicellular stage.
