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Sarkar, A. K.
- Chromosome Survey of Certain Angiosperms-I
Abstract Views :144 |
PDF Views:103
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Affiliations
1 Botanical Survey of India, Howrah, IN
1 Botanical Survey of India, Howrah, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 14, No 1-4 (1972), Pagination: 170-170Abstract
No Abstract.- Chromosome Survey of Certain Angiosperms-II
Abstract Views :119 |
PDF Views:102
Authors
Affiliations
1 Botanical Survey of India, Howrah, IN
1 Botanical Survey of India, Howrah, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 15, No 1-2 (1973), Pagination: 148-148Abstract
No Abstract.- Comparative Morpho-Anatomical Study of Cypselas in some Species of the Tribe Heliantheae (Asteraceae)
Abstract Views :204 |
PDF Views:165
Authors
Affiliations
1 Department of Botany, University of Kalyani, Kalyani, W.B., IN
1 Department of Botany, University of Kalyani, Kalyani, W.B., IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 40, No 1-4 (1998), Pagination: 34-46Abstract
A comparative study of morphology and anatomy of mature cypselas in 14 species belonging to 10 genera, such as BIDENS, CHRYSANTHELLUM, COREOPSIS, COSMOS, ECHINACEA, GAILLARDIA, GLOSSOGYNE, HELIANTHUS, TITHONIA and XANTHIUM under the tribe Heliantheae (Asteraceae) was undertaken under light and scanning electron microscopes. Morphologically the form and structure of cypselas, carpopodia and pappus are diacritical for characterization of taxa. In all species pericarp is well differentiated into 2 zones. Cells of the epicarp are usually tangentially elongated, provided with yellow or brown substances. Mesocarp is mainly differentiated into 4 zones. Number and distribution of vascular traces, phytomelan layer and secretory cavities are taxonomically significant in certain taxa. An artificial bxonomic key using the detailed morphological, anatomical and SEM observations on the mature cypselas are provided.Keywords
Asteraceae, Heliantheae, Morphology, Anatomy of Cypselas.- Cytological Studies on the Tribe Helianthoideae (Asteraceae)
Abstract Views :153 |
PDF Views:106
Authors
A. K. Sarkar
1,
D. Hazra
1
Affiliations
1 Botanical Survey of India, Howrah, IN
1 Botanical Survey of India, Howrah, IN