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Taxonomic bearing of stomatal structure and development in some Polemoniales
Author(s) -
Patel R. C.,
Shenoy K. N.,
Inamdar J. A.
Publication year - 1982
Publication title -
feddes repertorium
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.24
H-Index - 25
eISSN - 1522-239X
pISSN - 0014-8962
DOI - 10.1002/fedr.19820930113
Subject(s) - guard cell , boraginaceae , biology , botany
The structure and development of stomata in 27 genera and 53 species belonging to the families of the order Polemoniales are described. Nine stomatal types noticed are: anomocytic, anisocytic, actinocytic, staurocytic, diacytic, paracytic, tetracytic, transitional between paracytic and diacytic and stomata with a single subsidiary cell. Three modes of stomatal development observed are: mesogenous, perigenous and mesoperigenous. Stomatal abnormalities seen are: stomata with a single guard cell, arrested development and variously oriented contiguous stomata. The stomata varies in form, number, orientation and arrangement of the subsidiary and also the surrounding cells in different organs of a plant. On the basis of stomatal studies, the splitting of Polemoniales into Polemoniales Boraginales and Solanales is justified. The separation of Ehretiaceae from Boraginaceae is not justifiable.