ARCHIVES
VOL. 6, ISSUE 5 (2021)
Anatomical study of Nymphaea L., species in South India
Authors
Asha Lekshmi V, Sangeetha Unni, Sivu AR
Abstract
The genus Nympheae L., commonly known as water lily is one of the most fascinating group of aquatic plants. The genus is represented by about 50 species in both tropical and temperate regions of the world. The diversity of plants in the genus have increased it demands in cultivating caused many researchers to entice with scientific studies on this group. Nowadays, plant anatomy is used frequently to determine, the relationship between different genera, families, orders and other taxonomic categories. The present study was conducted to investigate the Morpho anatomical differences and similarities present in the Nymphaea species grown in South India. For the study Nymphaea rubra, Nymphaea omarana, Nymphaea nouchali, Nymphaea marliaceae, Nymphaea mexicana, Nymphaea pubesens, Nymphaea caerulea, Nymphaea malabarica. Fresh leaf and petiole of the selected species were collected from different localities and are prepared for microscopic observation using standard protocol and photographed. The anatomical studies shows difference and are, trichomes are seen on the epidermis of the petiole in N.malabarica, N.mexicana, N.rubra and are absent in other species taken for study. Some of the distinguishing characters were the presence of angular and lacunar type of epidermal layers. All species contains asterosclerids present in the lacuna of the arenchyma. Tubular and elonagaed sclerids were found in the midrib of N. malabarica, N. marliaceae, N. nouchali and N. pubesens. Except in N. marliaceae all the species possess columnar sclerids. 2-6 Bicollateral vascular bundles were present in the evaluated species. Collateral vascular bundles with protoxylem lacunae are present in all species except in N.omarana. Except in N. malabarica and N. Mexicana all the species possess collateral vascular bundles without protoxylem lacunae. The anatomical difference in the leaves helps to differentiate the taxa and can make it to identification key which uses to identify the characters.
Download
Pages:1363-1370
How to cite this article:
Asha Lekshmi V, Sangeetha Unni, Sivu AR "Anatomical study of <em>Nymphaea</em> L., species in South India ". International Journal of Botany Studies, Vol 6, Issue 5, 2021, Pages 1363-1370
Download Author Certificate
Please enter the email address corresponding to this article submission to download your certificate.