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Pandurangan, A. G.
- Vivipary in Gluta travancorica: Its Phytogeographic and Evolutionary Significance
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Authors
Affiliations
1 Kerala Forest Research Institute Peechi, 680 653, Thrissur, Kerala, IN
2 Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Palode, 695 562 Thiruvananthapuram, Kerala, IN
1 Kerala Forest Research Institute Peechi, 680 653, Thrissur, Kerala, IN
2 Jawaharlal Nehru Tropical Botanic Garden and Research Institute, Palode, 695 562 Thiruvananthapuram, Kerala, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 55 (2013), Pagination: 89-93Abstract
The occurrence of vivipary in Gluta. travancorica has been treated as a genetic linked adaptive strategy through an evolutionary process to sustain the minimum viable individuals in its habitats. The vicariance of Gluta spp. viz., Southern Western Ghats, Madagascar and New Guinea from the main stock of the Malayan peninsula implies the phytogeographic history of the peninsular India on the basis of continental drift and biotic ferry model of transoceanic movement in plants. Malayan peninsula accommodates about 10 species of the Gluta, which usually inhabit peat swamps or marshy places. The ever-ending physical vagaries experiences in the presently degraded shola/montane ecosystems of the southern Western Ghats has compelled the species to produce viviparous seed germination as an adaptation to make sure its progenies. Further, the vivipary in G. travancorica recalls its possible original habitats in the peat swamps since its allied species are growing as mangrove associates in the Malayan peninsula.Keywords
Vicariance, Phytogeography, Endemism, Evolution, Adaptation.Full Text
- New Population Records and Ecology of Humboldtia bourdillonii (Leguminosae: Caesalpinioideae) - A Critically Endangered Tree of Southern Western Ghats, Kerala
Abstract Views :208 |
PDF Views:139
Authors
Affiliations
1 Jawaharlal Nehru Tropical Botanic Garden And Research Institute, Palode-695 562, Kerala, IN
2 PG Department of Botany, Christ College, Irinjalakuda-680125, Kerala, IN
3 Kerala Forest Research Institute, Peechi- 680 653, Kerala, IN
1 Jawaharlal Nehru Tropical Botanic Garden And Research Institute, Palode-695 562, Kerala, IN
2 PG Department of Botany, Christ College, Irinjalakuda-680125, Kerala, IN
3 Kerala Forest Research Institute, Peechi- 680 653, Kerala, IN
Source
Nelumbo - The Bulletin of the Botanical Survey of India, Vol 62, No 1 (2020), Pagination: 40-45Abstract
Two new populations of Humboldtia bourdillonii Prain, an endemic tree of southern Western Ghats, Kerala, were recorded from Kulamavu forest, Idukki district,Kerala. The earlier populations reported are from Arjunankotta-Poonkavanam forests in Periyar Tiger Reserve of Peermede plateau. The population structure including number of mature individuals, gbh, age class along with major associates and seedling bank of the populations were analyzed as part of population ecology and subsequent in situ conservation of the species.Keywords
In situ Conservation, Kerala, New Populations, Population Ecology, Western Ghats.Full Text
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