Tag: Syeda Saleha Tahir

Stomata in Sibbaldia (Rosaceae)

Screen Shot 2018-05-08 at 22.16.40
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.

===

in Pakistan Journal of Botany 41:2137-2143 – 

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

Screen Shot 2018-05-08 at 22.19.03
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.

Screen Shot 2018-05-08 at 22.21.02
Fig. 3. Scanning Electron Micrographs showing foliar Stomates. A-B, S. tetrandra Bunge; C-D, S. ungiculata Rajput & Tahir; E-F, S. procumbens L.

Stomata in Sibbaldia (Rosaceae)

Photo credit: Google

Sibbaldia procumbens

S.E.M structure distribution and taxonomic significance of foliar stomata in Sibbaldia L. species (Rosaceae).

by Tahir S. S., Tahir M. M. R. (2009)

University of Sindh, Jamshoro, Sindh Pakista

Syeda Saleha Tahir

Muhammad Tahir M. Rajput

in Pakistan Journal of Botany: Vol. 41,5,2137-2143. –

https://www.researchgate.net/publication/286884629_SEM_structure_distribution_and_taxonomic_significance_of_Foliar_Stomata_in_Sibbaldia_L_species_Rosaceae

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.