Article

Pilea victoriae (Urticaceae), a new striking species from the mural flora of Western Ghats, India

Authors:
  • Malabar Botanical Garden
  • Bishop Abraham Memorial college, Thuruthicad, Pathanamthitta, Kerala, India
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Abstract

A new species of Pilea Lindley. from Palakkad gap region of Western Ghats of Kerala is described and illustrated as Pilea victoriae sp. nov. IUCN status, distribution, phenology, phenetic relationships, plastid genome variation and its affinities are discussed

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  • G Bentham
  • J D Hooker
Bentham, G. & Hooker, J. D. (1883). Genera Plantarum. Vol. 3. L. Reeve & Co., London.
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  • C J Chen
Chen, C. J. (1982) A monograph of Pilea (Urticaceae) in China. Bulletin of Botanical Research Harbin 2(3): 1-132.
The Urticaceae: a systematic review
  • I Friis
Friis, I. (1989). The Urticaceae: a systematic review. In: Evolution, systematics, and fossil history of the Hamamelidae. Volume 2: Higher Hamamelidae. The Systematics Association Special Volume No. 40B: 285 -308.
  • J D Hooker
Hooker, J.D. 1888. Flora of British India, vol. 5: 551. London: Reeve.
1821) Collectaneabotanica, or Figures and botanical illustrations of rare and curious exotic plants
  • J Lindley
Lindley, J. (1821) Collectaneabotanica, or Figures and botanical illustrations of rare and curious exotic plants. R. & A. Taylor, London.
Three new species of Pilea (Urticaceae) from Costa Rica and Panama. Bulletin of Natural History Museum London
  • A K Monro
Monro, A.K. (2000) Three new species of Pilea (Urticaceae) from Costa Rica and Panama. Bulletin of Natural History Museum London, Botany Series 30: 7-11.
Flowering plants of Kerala: CD-ROM ver 2.0
  • N Sasidharan
Sasidharan, N. 2013.Flowering plants of Kerala: CD-ROM ver 2.0. Kerala Forest Research Institute, Peechi.
Monographie de la familie des Urticacées
  • H A Weddell
Weddell, H. A. (1847). Monographie de la familie des Urticacées. Arch. Mus. Hist. Nat. 9: 1 -400.
Additions à la flore de L'Amérique du Sud: Urticaceae
  • H A Weddell
Weddell, H. A. (1852). Additions à la flore de L'Amérique du Sud: Urticaceae. Ann. Sci. Nat. Paris 3: 197-231.
IUCN Red List Categories and Criteria: Version 3.1. Second Edn.. International Union for Conservation of Nature and Natural Resources
  • Iucn
IUCN. 2012. IUCN Red List Categories and Criteria: Version 3.1. Second Edn.. International Union for Conservation of Nature and Natural Resources. Gland, Switzerland and Cambridge, UK: 1-32.