Abstract

• Taxonomy and pollen morphology of 9 species belonging to 7 genera of the family Fabaceae were studied. The specimens were collected from Magway Region during 2017- 2018. The collected species are two species of Acacia, Caesalpinia and one species of Aeschynomene, Butea, Clitoria, Mucuna, Vigna. Taxonomic descriptions, artificial key to the species was presented. According to the resulting data, perennial tree are Acacia, Butea; small tree is Caesalpinia sappan L.; shrubs is Aeschynomene americana L.; lianas is Caesalpinia bonduc (L.) Roxb and rest species are herbs. The types of leaves are compound. The trifoliolate leaves also occurred in Butea, Mucuna, Vigna and the remaining species are uni or bipinnate. The pollen grains were found as polyads and monads. Polyads was observed in Acacia and the other species were monads. The shape, size and sculpture are important criteria for the study of pollen morphology. There are two types of aperture and three types of exine ornamentation. Psilate pollens are observed in Acacia catechu (L.f) Willd., Clitoria ternatea L., and the other species are reticulate. The sizes of pollens are small, medium and large.The smallest pollen was found in Aeschynomene and largest pollen observed in Mucuna. Pollen of each species was presented in polar view and equatorial view.