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Title

POLLEN GRAIN MORPHOLOGY IN SOME OF ONOBRYCHIS SPECIES

Writers

GHANAVATI F.

Pages

 Start Page 33 | End Page 44

Abstract

 Aim and background: The genus ONOBRYCHIS Adans (Fabacea) belongs to Hedysareae tribe. ONOBRYCHIS is the biggest genus of Hedysareae Tribe which has 27 endemic species in Iran.Materials and Methods: POLLEN MORPHOLOGY of 11 taxa of the ONOBRYCHIS was studied with Scanning ELECTRON MICROSCOPY (SEM).Results: the results obtained showed that pollen grain is 3-collpate, prolate or perprolate. Exine ornamentation is reticulate and dimention of lumen is different. The equatorial view was elongated, elliptic and the pollar view was circular or obtus-triangular. One pollen type is recognized based on size, equatorial and polar view and exines ornamentation.Conclusion: Pollen morphological studies provided the opportunity to identify and separate species.

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