Notes on the correct identity of Ceratostylis siamensis (Epidendroideae: Podochileae) from India

Authors

  • Shuvadip Sarkar Author
  • DINESH KUMAR AGRAWALA Author
  • Debabrata Maity Author
  • Madhusudhan Khanal Author

DOI:

https://doi.org/10.15517/lank.v24i2.55730

Keywords:

Arunachal Pradesh, Ceratostylis himalaica, misidentification, orchids, taxonomy

Abstract

While conducting taxonomic studies on the tribe Podochileae (Orchidaceae) for the Flora of India, two species, Ceratostylis siamensis and Ceratostylis himalaica have been examined using types, protologues, fresh specimens, and authentic herbarium collections. Ceratostylis siamensis was previously reported and documented in Arunachal Pradesh, India. However, we determined upon closer examination that this record was based on erroneous identification. The correct identity of this species is C. himalaica. Consequently, Ceratostylis siamensis is excluded from the flora of India.

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Author Biographies

  • Shuvadip Sarkar

    Central National Herbarium, Botanical Survey of India, Howrah‒711103, West Bengal

  • DINESH KUMAR AGRAWALA

    Botanical Survey of India, CGO Complex, 3rd MSO building, Salt Lake, Kolkata‒700064, West Bengal.

  • Debabrata Maity

    Taxonomy and Biosystematics Laboratory, Department of Botany, University of Calcutta, 35, Ballygunge Circular Road, Kolkata‒7000019, West Bengal.

  • Madhusudhan Khanal

    Taxonomy and Biodiversity Laboratory, Department of Botany, Sikkim University, 6th mile, Samdur, Gangtok‒737102, Sikkim

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Published

2026-05-13

How to Cite

Notes on the correct identity of Ceratostylis siamensis (Epidendroideae: Podochileae) from India. (2026). Lankesteriana: International Journal on Orchidology, 123–129. https://doi.org/10.15517/lank.v24i2.55730