Stomata in Sibbaldia (Rosaceae)

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Fig. 1. Scanning Electron micrographs showing foliar Stomates. A-B, S.adpressa Bunge; C-D, S. micropetala (D.Don). Hand- Mazz; E-F, S.purpusilloides (Smith) Hand- Mazzaceae)

 

S.E.M Structure and Taxonomic significance of foliar stomata in Sibbaldia L. species (Rosaceae)

by Tahir S. S., Rajpat M. T. M. (2009)

SYEDA SALEHA TAHIR, MUHAMMAD TAHIR M. RAJPUT,

Institute of Botany, University of Sindh, Jamshoro, Sindh, Pakistan.

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in Pakistan Journal of Botany 41:2137-2143 – 

http://www.pakbs.org/pjbot/PDFs/41(5)/PJB41(5)2137.pdf

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Fig. 2. Scanning Electron micrographs showing foliar Stomates. A-B, S. purpurea Royle; C-D S.sikkimensis (Prain) Chatterjee; E-F, S.tenusis Hand –Mazz.

Abstract

The S.E.M. structure, distribution and taxonomic significance of foliar stomata in the species of the genus Sibbaldia L. (Rosaceae) has been examined with Scanning Electron Microscope.

Stomata are mostly anomocytic type, usually present on both surface of the leaves. Differences in shape, size, distribution and the orientation of stomata have been observed. Except in 2 species, subsiding cells are mostly covered with non-oriental wax. Both elevated and sunken stomata with elongated to circular stomatal apparatus are found.

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Fig. 3. Scanning Electron Micrographs showing foliar Stomates. A-B, S. tetrandra Bunge; C-D, S. ungiculata Rajput & Tahir; E-F, S. procumbens L.

Published by

Willem Van Cotthem

Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development.

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