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Issue: Vol. 783 No. 2: 4 Nov. 2026
Type: Article
Published: 2026-11-04
DOI: 10.11646/phytotaxa.783.2.7
Page range: 183-191
Abstract views: 38
PDF downloaded: 1

Lagenandra ayanae (Araceae), a new species from south Western Ghats, India

Department of Botany; Sanatana Dharma College; Alappuzha 688003; Keralam; India; Research Department of Botany; University of Kerala; Karyavattom P.O.; Thiruvananthapuram 695581; Keralam; India
MS Swaminathan Research Foundation; Puthurvayal; Kalpetta; Wayanad 673577; Keralam; India
Department of Botany; Sanatana Dharma College; Alappuzha 688003; Keralam; India; Research Department of Botany; University of Kerala; Karyavattom P.O.; Thiruvananthapuram 695581; Keralam; India
Monocots Cryptocoryneae Endemic Keralam Taxonomy

Abstract

A new species of Lagenandra (Family: Araceae, Tribe: Cryptocoryneae), L. ayanae from south Western Ghats is described. The new species is related to L. kunkichirimuseumensis and L. dominicii by the foliar morphology and ecological preferences, but clearly distinct from the former by the tail in the limb, spadix appendix and reduced pistillate zone, and from the latter by the subvertically opening purple-coloured spathe limb and highly reduced pistillate part. The diagnostic morphological characters, distribution, and images of the new species are presented in this paper. A key to the known species of Lagenandra is also provided for facilitating the identification in the field.

References

  1. Bastmeijer, J.D. (2019) The Lagenandra pages. Available from: https://crypts.home.xs4all.nl/Lagenandra/index.html (accessed 4 January 2026)
  2. Biju, P., Josekutty, E.J. & Augustine, J. (2018) Lagenandra cherupuzhica (Araceae), a new species from Keralam, India. Annales Botanici Fennici 55: 139–143. https://doi.org/10.5735/085.055.0116
  3. Blume, C.L. (1831) Osbeckia aspera. Flora oder Botanische Zeitung: welche Recensionen, Abhandlungen, Aufsätze, Neuigkeiten und Nachrichten, die Botanik betreffend, enthält 14: 474.
  4. Dalzell, N.A. (1852) Contributions to the botany of Western India. Hooker’s Journal of Botany and Kew Garden Miscellany 4: 289–295.
  5. de Wit, H.C.D. (1978) Revisie van het genus Lagenandra Dalzell (Araceae). Mededelingen van de Landbouwhogeschool Wageningen 78: 1–45.
  6. Engler, A. (1920) Araceae. In: Engler, A. (Ed.) Syllabus der Pflanzenfamilien, 8th ed., Vol. II, Part 1. Borntraeger, Berlin, pp. 22–42.
  7. Hara, H. (1953) Ludwigia peruviana (L.) H. Hara. Journal of Japanese Botany 28: 293–295.
  8. IUCN Standards and Petitions Committee (2025) Guidelines for Using the IUCN Red List Categories and Criteria. Version 15. Prepared by the Standards and petitions committee. Available from: https://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 3 January 2026)
  9. Linnaeus, C. (1753) Species plantarum, exhibentes plantas rite cognitas ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. Vol. 2. Laurentius Salvius, Stockholm, 1200 pp. https://doi.org/10.5962/bhl.title.669
  10. Madola, I., Jayasinghe, H., Yakandawala, D. & Yakandawala, K. (2025) Lagenandra rubra (Araceae), a new endemic species from Sinharaja Man and Biosphere Reserve, Sri Lanka. Phytotaxa 689 (2): 233–242. https://doi.org/10.11646/phytotaxa.689.2.6
  11. Mathew, J., Salim, P.M. & Karunakaran, K. (2023) Lagenandra kunkichirimuseumensis (Araceae), a new species from south Western Ghats, India. Species 24: e59s1564. https://doi.org/10.54905/disssi.v24i74.e59s1564
  12. POWO (2026) Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Available from: https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:2827-1#publications (accessed 3 January 2026)
  13. Pushkaran, P., Venugopal, M., Narayanan, M.K.R. & Sunil, C.N. (2025) Lagenandra pradeepiana, a new species of aroid from Western Ghats, India. Phytotaxa 730 (2): 199–207. https://doi.org/10.11646/phytotaxa.730.2.7
  14. Ramamurthy, K. & Rajan, R. (1983) A new species of Lagenandra Dalzell (Araceae) from Kerala State, India. Journal of the Bombay Natural History Society 80: 613–615.
  15. Saranya, J., Mathew, J. & Salim, P.M. (2026) Lagenandra dominicii (Araceae), a new species from south Western Ghats, India. Species 27: e21s3301.
  16. Sasidharan, N. (2013) Flowering plants of Kerala: CD-ROM. Version 2.0. Kerala Forest Research Institute, Peechi, Kerala.
  17. Sasikala, K., Vajravelu, E. & Daniel, P. (2019) Fascicles of Flora of India, Fascicle 29 Araceae. Botanical Survey of India, pp. 1–358, pl. 1–33.
  18. Sastry, A.R.K. (1967 [1968]) Lagenandra undulata—a new species of Araceae. Bulletin of the Botanical Survey of India 9: 294–296.
  19. Selvakumari, P.A.S. (2014) Pharmacognistical Standardisation of Lagenandra toxicaria Dalz. Malaysian Journal of Science 33 (2): 163–175. https://doi.org/10.22452/mjs.vol33no2.5
  20. Sivadasan, M. & Babu, C.M. (1995) A little known endemic and rare variety of Lagenandra toxicaria Dalzell (Araceae). Rheedea 5: 187–190.
  21. Sivadasan, M., Jaleel, V.A. & Thomas, B. (2001) Lagenandra keralensis (Araceae), a remarkable new species from India. Botanical Bulletin of Academia Sinica 42: 153–157. https://doi.org/10.7016/BBAS.200104.0153
  22. Wight, R. (1853) Icones Plantarum Indiae Orientalis. Vol. 6. Pharoah J.B., Madras, pp. 1–44, t. 1921–2101.

How to Cite

Jaya, S., Salim, P.M. & Mathew, J. (2026) Lagenandra ayanae (Araceae), a new species from south Western Ghats, India. Phytotaxa 783 (2): 183–191. https://doi.org/10.11646/phytotaxa.783.2.7