| Pak. J. Bot., 41(5): 2137-2143, 2009. | Back to Contents | ||||
|
|
Updated: 26-11-09 | ||||
|
|
S.E.M. STRUCTURE DISTRIBUTION AND TAXONOMIC SIGNIFICANCE OF FOLIAR STOMATA IN SIBBALDIA L. SPECIES (ROSACEAE)
SYEDA SALEHA TAHIR AND MUHAMMAD TAHIR M. RAJPUT
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.
Institute of Botany, University of Sindh, Jamshoro, Sindh, Pakistan. |
|
|||
|
|
|||||
| Back to Contents |
|
Back to Contents | |||
|
|
|||||