Qualitative Wood Anatomical Study of Disjunct Species from Contrasting Biogeographical Zones of India
DOI:
https://doi.org/10.36808/if/2022/v148i2/160757Keywords:
Disjunct Species, IAWA, Qualitative Features, Vessel Features, Wood Anatomy.Abstract
Water availability influences the wood anatomical features especially vessel characteristics in a particular zone. This leads to various adaptive strategies related to wood anatomy, adopted by species for their successful establishment at different environmental conditions. The present study analyzes qualitative features of the vessel element of disjunct species belonging to different biogeographical zones of India and to observe the anatomical changes exhibited by the species. Disjunct taxon shows a peculiar distribution where a taxon is widely separated geographically or their distribution is not continuous.
The present study examines the qualitative wood anatomy of twenty one wood samples of five disjunct species selected from various biogeographical zones of India. Standard laboratory procedures were followed to prepare the permanent slides. Vessel characteristics for all the selected samples were examined from these permanent slides as per the terminology list of microscopic features for hardwood identification given by the International Association of Wood Anatomists. The results indicated absence of intraspecific variations between the species occurring at different biogeographical zones. This shows the conservative nature of qualitative wood anatomical features.
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