Studies on Micromorphological Taxonomic Variations in Abutilon Species of Indian Thar Desert
Journal Title: IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS) - Year 2017, Vol 12, Issue 4
Abstract
Micromorphological taxonomic variations of leaves in three common species of genus Abutilon Mill.viz. Abutilon indicum(Linn.) Sweet,Abutilon pannosum (Forst.f.) Schlect. and Abutilon ramosum (Cav.) Guill. and Perr. in Indian Thar desert were studied and its taxonomic relevance for identification and delineation of species were evaluated. Leaves were amphistomatic and amphitrichomic while stomata and trichomes were more concentrated on abaxial leaf surface. Both anomocytic and anisocytic stomata were reported. Epidermal cells on adaxial leaf surface were polygonal with straight wall pattern while on abaxial leaf surface irregular shaped epidermal cells with undulating wall pattern were observed. Morphologically six diverse types of trichomes were recognized from both adaxial and abaxial leaf surfaces. These were placed under two basic types-eglandular and glandular trichomes. Further three subtypes of eglandular trichomes; simple unicellular, bifurcated and stellate trichomes and three subtypes of glandular trichomes; stalked capitate glands, multicellular flask shape glands and disk shape peltate glands were reported. Present study supports the view that leaf micromorphological features can be used as an important supportive taxonomic character for identification and delineation of species in its vegetative state in all seasons throughout the year.
Authors and Affiliations
Ilham Bano, G. S. Deora*
Keywords
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