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Volume 62, Issue 1, July 2020

Articles

Caryopses Morphology of Sporobolus (Poaceae: Eragrostidiae: Sporobolinae) in India and its Taxonomic Significance

https://doi.org/10.20324/nelumbo/v62/2020/119056

Published 2020-07-31

  • S. Arumugam
    • ,
  • G. Gnanasekaran
    • ,
  • K. A. A. Kabeer
    • ,
  • G. V. S. Murthy
    • ,
  • V. J. Nair

S. Arumugam
Botanical Survey of India, Southern Regional Centre, TNAU Campus, Lawley Road, Coimbatore – 641003, Tamil Nadu

G. Gnanasekaran
Botanical Survey of India, Southern Regional Centre, TNAU Campus, Lawley Road, Coimbatore – 641003, Tamil Nadu

K. A. A. Kabeer
Botanical Survey of India, Southern Regional Centre, TNAU Campus, Lawley Road, Coimbatore – 641003, Tamil Nadu

G. V. S. Murthy
Botanical Survey of India, Southern Regional Centre, TNAU Campus, Lawley Road, Coimbatore – 641003, Tamil Nadu

V. J. Nair
Botanical Survey of India, Southern Regional Centre, TNAU Campus, Lawley Road, Coimbatore – 641003, Tamil Nadu

Abstract

The caryopses morphology of 16 taxa out of 18 taxa of Sporobolus (Poaceae) found in India is examined under Optical and Scanning Electron Microscopes. The macro- and micro-morphological characters such as shape, size, thickness (in cross section), embryo percentage, colour and surface testa ornamentation pattern were critically analysed to evaluate their taxonomic significance in the delimitation and identification of each taxon. Further, a bracketed dichotomous taxonomic key is provided here based on caryopses morphology to facilitate precise identification.

Keywords

Caryopses, Morphology, Sporobolus, Poaceae, India.

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Author Biography

S. Arumugam

BOTANICAL ASSISTANT,

BOTANICAL SURVEY OF INDIA,

SOUTHERN REGIONAL CENTRE, 

TNAU Campus, Coimbatore -641003

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