Abstract
The epidermal structure and ontogeny of stomata are described in 31 species of the Acanthaceae. The epidermal cells are polygonal, isodiametric, or elongated with thick, sinuous, arched, or straight anticlinal walls. Extrafloral nectaries and nine types of glandular and eglandular trichomes have been observed. Needle-like, rodlike, and square crystals of calcium oxalate have been observed in the hair cells. The mature stomata are typically caryophyllaceous with two to four subsidiary cells and are formed in three to five successive mitotic divisions of the meristemoid. The stomatal ontogeny is syndetocheilic or mesogenous and is similar for different organs of the same plant. Abnormal stomata with a single guard cell, aborted guard cells, or arrested development are frequent.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
