Leaf architecture of some acanthaceae |
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Authors: | Gopal S Chaudhari Jayantilal A Inamdar |
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Institution: | (1) Department of Biosciences, Sardar Patel University, 388120 Vallabh Vidyanagar, Gujarat, India |
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Abstract: | Leaf architectural pattern has been studied in 27 genera and 35 species of the Acanthaceae. The major venation pattern conforms
to pinnate camptodromous with eucamptodromous or festooned brochidodromous secondaries, pinnate craspedodromous inAcanthus ilicifolius and acrodromous inLepidagathis trinervis. Intersecondary veins are common. The marginal ultimate venation is looped. The areoles are variable in size. The vein endings
are usually simple, linear or cuved or divide once or twice dichotomously. Isolated vein endings, tracheids, isolated free
vein endings and extension cells are observed. Transfusion tracheids are seen inDicliptera verticillata. Miniature vessel elements with simple perforation plates are noticed lying free in the areole or at the end of tracheids
inSeriocalyx scaber andThunbergia grandiflora.Elytraria acaulis, Nelsonia canescens andStaurogynae zeylanica exhibit venation pattern shown by majority of the taxa studied, of the Acanthaceae. |
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Keywords: | Acanthaceae Left anatomy Leaf architecture Venation |
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