In this article we will discuss about the common parts of callistophyton plants. Stem: T.S. of Callistophyton stem shows a central angular parenchymatous pith surrounded by eustele. The stele is composed of a ring of 5 to 13 axial bundles (sympodia) forming leaf traces in 2/5 arrangement. Both mesarch and exarch primary bundles are reported, […]
Callistophyton Plants: Root and Leaves | Gymnosperms | Botany
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