Calamus pseudoerectus (Arecaceae), a new species from the eastern Himalaya, India

Authors

  • Sujit Mondal Taxonomy of Angiosperm and Biosystematics Lab, Department of Botany, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India. https://orcid.org/0000-0002-0161-9855
  • Shyamal K. Basu The Agri Horticultural Society of India, Kolkata, West Bengal 700027, India.
  • Monoranjan Chowdhury Taxonomy of Angiosperm and Biosystematics Lab, Department of Botany, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India. https://orcid.org/0000-0002-7978-1713

DOI:

https://doi.org/10.11609/jott.4493.11.5.13605-13610

Keywords:

Calamus arborescence, Calamus erectus, new taxa, Palmae, Rattans

Abstract

Calamus pseudoerectus (Arecaceae or Palmae), a new species of rattan from the hilly slopes of Mukti and Mahananda rivers at Darjeeling District of West Bengal in the eastern Indian Himalaya, is described and illustrated.  This species closely resembles two Indo-Myanmar species, C. erectus Roxb. and C. arborescence Griff.  It, however, is distinguished by its short and extremely slender stem, spine ornamentation, pendulous, long-branched inflorescence, and minute fruits with fimbriate scales.  A comparative study among C. pseudoerectus sp. nov., C. erectus Roxb., and C. arborescence Griff. is provided.  Conservation status of this species is proposed as Endangered (EN) as per IUCN. 

Author Biographies

Sujit Mondal, Taxonomy of Angiosperm and Biosystematics Lab, Department of Botany, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India.

Taxonomy of Angiosperms & Biosystematics Lab.

Department of Botany
University of North Bengal

Darjeeling, 734013

Shyamal K. Basu, The Agri Horticultural Society of India, Kolkata, West Bengal 700027, India.

Botanical Survey of India

Howrah

Monoranjan Chowdhury, Taxonomy of Angiosperm and Biosystematics Lab, Department of Botany, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India.

Taxonomy of Angiosperms & Biosystematics Lab.

Department of Botany
University of North Bengal

Darjeeling, 734013

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Published

26-03-2019

Issue

Vol. 11 No. 5 (2019)

Section

Short Communications

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