Epidermal structure and development of stomata in some Annonaceae
1971
Patel, R.J.
Epidermal structure and development of stomata are studied in 20 species of the Annonaceae. Epidermal cells are polygonal or irregular in outline, isodiametnc or elongated with straight, arched, or sinuous anticlinal walls. Cuticular striations radiating from guard cells or hair bases are noticed. Four types of trichomes and secretory cells are seen. The mature stomata are paracytic with 2–6 subsidiary cells, non-contiguous at both poles, or contiguous at one or both the poles. The increase in number of subsidiary cells is due to their divisions. Contiguous stomata, arrested development, single guard cell, and degeneration of guard cells are observed. The development is either syndetocheilic or mesogenous.
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