Stomata in Hypericum (dicots)

Photo credit: Bahadur & Swamy p. 19

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Foliar epidermal features and their taxonomic significance in ten species of Hypericum (Hypericaceae)

by Bahadur B., Swamy N. R. (1997)

bir_bahadur
Bir BAHADUR, Kakatiya University, Warangal, India
professor_rama_swamy_nanna
N. Rama SWAMY, Kakatiya University, Warangal, India

in Rheedea 7(1):15-25 – 

https://www.researchgate.net/publication/308417016_Foliar_epidermal_features_and_their_taxonomic_significance_in_ten_species_of_HypericumHypericaceae (full text)

Abstract

The leaves in the ten species of Hypericum L. are simple, ovate to lanceolate.  Leaf shape, size, types of stomata and their percentage, frequency of stomata/mm2, stomatal index have been investigated.  The species H. aegypticum, H. olympicum and H. montanum are with ovate and amphistomatic leaves; H. patulum var. forestii and H. humifusum are with ovate and hypostomatic leaves; H. androsaemum and H. patulum are with lanceolate leaves having idioblastic sacs; H. mysorensis and H. kalmonium are with lanceolate leaves but without idioblastic sacs, and H. empetrifolium is with linear leaves.  A key based on morphological and epidermal characters is provided for identification of the species.

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Published by

Willem Van Cotthem

Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development.

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