In this article we will discuss about the occurrence and position of stomata in epidermis. Stoma occurs in the epidermises of any of the aerial parts of plants. It occurs in Bryophytes, Pteridophytes and Spermatophytes. In Bryophyta stoma is found on the capsules of Anthocerotopsida and Bryopsida. In Marcnantiopsida stomata are absent; instead pores are present on the surface of [...]
The upcoming discussion will update you about the difference between dicotyledonous stem and monocotyledonous stem. Difference # Dicotyledonous Stem: 1. Internally it is differentiated into epidermis, cortex and stele. 2. Epidermis it bears hairs that are usually multicellular. 3. Cortex the peripheral layers, i.e. hypodermis are generally collenchymatous. 4. The rest of cortex bears nonvascular tissues. 5. The innermost layer [...]
Followings are a few reasons for the great interest in stoma: Stoma provides characters of taxonomic significance. This is due to the fact that genera and even families show great constancy for their possession of a particular stomatal complex. The study of stomatal complexes becomes very useful to understand the evolutionary relationship of plants when the classical methods of cytology [...]