Chemosystematics of Indian Ophioglossum L.

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Abstract

Biochemical attributes have been used as the basis for determining phenetic relationships within Ophioglossum, The 114 characters were free amino acids of the various species and sixteen elements in the plants and the soils in which they grow. A matrix of similarity indices between the species was prepared, followed by a dissimilarity matrix, and then a single linkage dendogram was produced by cluster analysis.

The relationships based on chemical attributes differ from those based on morphology. Since morphological attributes are more plastic, the relationship based on biochemical attributes must be considered to be more sound and authentic. The results obtained by this method agree with relationships based upon chromosomal evolution by a stoichiometric model.

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      The genus Ophioglossum is a small terrestrial plant that is distributed worldwide [1]. Phytochemical researches revealed that the herba of Ophioglossum contains massive fatty acids and their esters [2,3], amino acid [4], flavonoids [5–11], and polysaccharoses [12,13] which are known to have various biological activities. Ophioglossum thermale Kom.

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