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Journal of Botany
Volume 2017, Article ID 3075638, 10 pages
https://doi.org/10.1155/2017/3075638
Research Article

Micromorphological Characterization of the Leaf and Rhizome of Agapanthus praecox subsp. praecox Willd. (Amaryllidaceae)

Medicinal Plants and Economic Development Research Centre, University of Fort Hare, Alice 5700, South Africa

Correspondence should be addressed to Olubunmi Josephine Sharaibi; moc.oohay@2002lawaljb

Received 9 May 2017; Revised 12 June 2017; Accepted 20 June 2017; Published 26 July 2017

Academic Editor: William K. Smith

Copyright © 2017 Olubunmi Josephine Sharaibi and Anthony Jide Afolayan. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Agapanthus praecox subsp. praecox Willd. is a highly valued medicinal plant of family Amaryllidaceae. The genus Agapanthus has been difficult to classify into distinct species due to broad similar morphology of its members. Present taxonomic confusion in this genus and numerous medicinal uses of A. praecox necessitate its proper identification. The leaf and rhizome microcharacters were studied using scanning electron, light microscopy, and energy dispersive X-ray spectroscopy. Epidermal cells are polygonal having wavy anticlinal walls with mean adaxial length of μm and mean abaxial length of μm. The leaf is amphistomatic with anomocytic stomata with mean pore length of μm on the adaxial and μm on the abaxial surface. The mean stomata densities on the adaxial and abaxial surfaces were  mm2 and  mm2. Trichomes and secretory ducts are absent on both surfaces. EDX spectroscopy showed that beryllium, carbon, oxygen, sodium, and silicon were present on both epidermal surfaces and rhizome while nitrogen, aluminum, and chlorine were detected only on the adaxial surface and sulphur was detected only in the rhizome.