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- Title
POLLEN MORPHOLOGY OF BEGONIA L. (BEGONIACEAE) IN NEPAL.
- Authors
RAJBHANDARY, SANGEETA; HUGHES, MARK; SHRESTHA, KRISHNA K.
- Abstract
The pollen morphology of 28 Begonia species of Nepal has been examined by scanning electron microscopy (SEM). Comparative pollen analysis was made based on size, shape in polar and equatorial views, P/E ratio, aperture, and exine ornamentation. In this study, four types of pollen ornamentation morphology have been identified. Among Nepalese Begonia, B. roxburghii (section Sphenanthera) has the smallest pollen (11.2-12.8 × 6.4-7.0 μm) and B. flagellaris (section Diploclinium) has the largest pollen (24.3-30.6 × 11.4-12.0 μm). Presence of margo in the pollen ornamentation is a distinguishing character that separates Begonia section Platycentrum from all other sections of Nepalese Begonia.
- Subjects
NEPAL; POLLEN morphology; BEGONIAS; SCANNING electron microscopy; ANGIOSPERMS; CLASSIFICATION
- Publication
Bangladesh Journal of Plant Taxonomy, 2012, Vol 19, Issue 2, p191
- ISSN
1028-2092
- Publication type
Article
- DOI
10.3329/bjpt.v19i2.13134