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Epidermal structure and ontogeny of stomata in some Verbenaceae
by Inamdar J. A. (1969)
Department of Botany, Sardar Patel University, Vallabh Vidyanagar, India
in Annals of Botany. 71(4) 323-370. –
The present paper deals with epidermal structure and development of stomata in 14 species of Verbenaceae.
The epidermal cells are either polygonal, isodia- metric, or elongated in various directions, and irregularly arranged. The anti- clinal walls are thick, mostly sinuous, occasionally arched or straight. The surface of the cuticle shows parallel, rarely corrugated, striations. Some 12 types of eglan- dular and glandular trichomes, and foliar nectaries are noticed.
The mature stomata are diacytic, anisocytic, paracytic, with a single subsidiary cell, anomocytic and perigenous.
The development of anomocytic stomata is perigenous, while that of others is mesogenous or syndetocheilic type.
Abnormalities noticed here include contiguous stomata, stomata with a single guard cell, and aborted guard cells.