Abstract
The structure of stomata on the leaf, stem, petiole, peduncle, bract and sepal is described. The development has been studied in all organs except the peduncle. Three types of stomata—paracytic, anisocytic and anomocytic—occur on the leaf, bract and sepal but only the first two types are present in the remaining organs. Stomata with one or two subsidiary cells unilaterally flanking the guard cells are also found in the last two organs. In all the organs the paracytic type is by far the commonest, anomocytic one rare. An increase in number of subsidiary cells is either by their division or by the adjacent perigenes becoming subsidiary cell-like. Though there is a diversity of the structure of mature stomata on the same surface of each organ, the different types develop similarly in all organs.
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Communicated by Prof. V. Puri,f.a.sc.
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Shah, G.L. Stomatal development inConvolvulus arvensis Linn.. Proc. Indian Acad. Sci. 66, 237–242 (1967). https://doi.org/10.1007/BF03052099
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DOI: https://doi.org/10.1007/BF03052099