Epidermal structure and development of stomata in Ephedra foliata Boiss.

The epidermal structure of the leaf and stem of Ephedra foliata Boiss. is described. The epidermis of internodes and leaves shows longitudinal rows of cells and stomata. In the nodes and the leaf bases the stomata are irregularly orientated. The subsidiary cells are perigene and the development of stomata is typically haplocheilic

Development of stomata in leaves of three species of Cycas and Ginkgo biloba L.

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Development of caryophyllaceous stomata in Asteracantha longifolia Nees

The development of caryophyllaceous type of stomata in Asteracantha longifolia Nees. is typically syndetocheilic. The two crescentic subsidiary cells and the encircling cells are derived from the same meristemoid which ultimately gives rise to the guard cells