COMPARATIVE POLLEN MORPHOLOGY OF TEN GREWIA SPECIES
Abstract
- Pollen morphology of 10 species belonging to the genus Grewia of subfamily Tilioideae were studied. All the specimens were collected from Mandalay and Magway Regions during 2018. Plant identification was carried out and pollen grains were studied. Pollen grains of all investigated species were monad. The aperture types of pollen grains of all species were found as colporate, except Grewia villosa Willd which is colpate. The shapes of pollen grains were found as subprolate in Grewia columaris Smith, Grewia parviflora (Burge) HandenMazzetti, and Grewia villosa Willd and the remaining seven species were prolate. The sizes of pollen grains were medium and large. Among the studied species, the smallest pollen grains was found in Grewia columaris Smith and the largest pollen grains was in Grewia laevigata Vahl.ex Juss. The taxonomic descriptions of each species were described with their inflorescences. The polar view and equatorial view of the pollen for each species were presented. Moreover, the comparative pollen morphological characters were presented in table.
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Year
- 2020
Author
-
Ohnmar Htwe
Subject
- Botany and Marine
Publisher
- Myanmar Academy of Arts and Science (MAAS)