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Opaline Silica in the Leaves of Some Grasses and Sedges of Karachi

Author(s): S. Shahid Shaukat | G. R. Sarwar

Journal: Pakistan Journal of Biological Sciences
ISSN 1028-8880

Volume: 3;
Issue: 10;
Start page: 1648;
Date: 2000;
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The deposits of silicon in the leaves of several grasses and sedges have been investigated. Shape and distribution patterns of opal phytoliths were examined in the adaxial surface of leaf blades. Dumb- bell shape was found to be most common, such phytoliths were generally arranged in two or three rows. Rod, sphere and saddle-shaped phytoliths were specific for certain species and this can be used as a diagnostic character to delimit such species.

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