Comparative Foliar Epidermal Studies in Desmostachya (L.) Species, Family Poaceae
AbstractThe new species Desmostachya pingalaiae Raole & R. J. Desai has been described recently, even though micro-morphological studies were not carried out yet. As micro-morphological knowledge is not available at the moment for D. pingalaiae, comparative analysis in genus Desmostachya L. was carried out on both leaf epidermises, with the aim of determining the patterns of variation in their epidermal characteristics and assessing their value in species identification. Comparative foliar analysis was carried out by using light microscopy, following routine scraping method. The significant diagnostic character for the identification of D. bipinnata is the presence of frequently distributed macrohairs on abaxial epidermis, while for D. pingalaiae is the existence of papillae, flanking the long cells. Silica bodies and papillae, along with routine micro-morphological features, are reported for the first time for D. pingalaiae. Even more, micromorphological characters are also helpful for the identification of closely related species of the genus Desmostachya L.
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