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26 June 2015 Structure and distribution of heteromorphic stomata in Pterygota alata (Roxb.) R. Br. (Malvaceae, formerly Sterculiaceae)
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Abstract

Thirteen types of stomata along with 18 subtypes and 3 intermediate subtypes between brachyparahexacytic monopolar and dipolar are reported here to be present in the leaves of Pterygota alata (Roxb.) R. Br. var. alata and Pterygota alata (Roxb.) R. Br. var. irregularis (W. W. Sm.) Deb & S. K. Basu. The foliar epidermal cells are either polygonal, rectangular, or triangular, having either straight anticlinal walls or sinuous to undulate walls, and isodiametric in surface view. The observed stomata are amphibrachyparacytic, amphicyclocytic, anisocytic, anomocytic, anomotetracytic, brachyparacytic, brachyparahexacytic, brachyparatetracytic, cyclocytic, paracytic, parahexacytic (dipolar), paratetracytic and stephanocytic. Besides these, the presence of giant stomata is a significant finding. Cuticular striations are present on the subsidiary cells, epidermal cells and sometimes even on guard cells.

© Publications Scientifiques du Muséum national d'Histoire naturelle, Paris.
Sonia Mitra, G. G. Maiti, and Debabrata Maity "Structure and distribution of heteromorphic stomata in Pterygota alata (Roxb.) R. Br. (Malvaceae, formerly Sterculiaceae)," Adansonia 37(1), 139-147, (26 June 2015). https://doi.org/10.5252/a2015n1a9
Received: 21 February 2013; Accepted: 1 March 2014; Published: 26 June 2015
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