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Type: Article
Published: 2025-06-24
Page range: 163-170
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Agrostis tsomgoensis (Poaceae, Agrostidinae)––a new pooid grass species from Sikkim Himalaya, India

Department of Botany, Govt. Naveen College Makdi, Dist. Kondagaon (C.G.)-494226, India
Plant Diversity, Systematics & Herbarium Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, India
Plant Diversity, Systematics & Herbarium Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, India
Plant Diversity, Systematics & Herbarium Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, India
Plant Diversity, Systematics & Herbarium Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, India
Morphology New species Pooideae Sikkim Himalaya Taxonomy Alpine grass Eastern Himalaya Monocots

Abstract

A new species, Agrostis tsomgoensis, sp. nov., is described and illustrated from Sikkim, India. It is distinguished from other known species of Agrostis in having glumes almost twice the lemma length, lemma unawned and glabrous, palea half of the lemma length, and anthers 0.33–0.66 mm long. Comparison with similar species, A. clavata, A. scabra and A. micrantha, is presented. A detailed morphological description, photograph, distribution map, and taxonomic notes for this species are also provided.

References

  1. Bor, N.L. (1953) Notes on Asiatic Grasses: XII New Species. Kew Bulletin 8 (2): 269–276. https://doi.org/10.2307/4109309
  2. Bor, N.L. (1954) Notes on Asiatic Grasses: XIX. New Species and New Names. Kew Bulletin 9 (3): 497–502. https://doi.org/10.2307/4108832
  3. Bor, N.L. (1960) Grasses of Burma, Ceylon, India and Pakistan (excluding Bambuseae). Pergamon Press, London, 767 pp.
  4. Desfontaines, R.L. (1798) Flora Atlantica, vol. 2. C. Panckoucke, Parisiis, 458 pp.
  5. Hooker, J.D. (1896) The flora of British India 7. L. Reeve & Co., London, 842 pp. https://doi.org/10.5962/bhl.title.678
  6. Jain, S.K. & Rao, R.R. (1976) A Hand Book of Field and Herbarium Methods. Today and Tomorrow’s Printers and Publishers, New Delhi, pp. 1–150.
  7. Kellogg, E.A. (2015) Flowering plants, monocots, Poaceae. In: Kubitski, K. (Ed.) The families and genera of vascular plants. Vol. 13. Cham: Springer International, pp. 416. https://doi.org/10.1007/978-3-319-15332-2
  8. Kellogg, E.A., Abbott, J.R., Bawa, K.S., Gandhi, K.N., Kailash, B.R., Ganeshaiah, K.N., Shrestha, U.B. & Raven, P. (2020) Checklist of the grasses of India. PhytoKeys 163: 1–560. https://doi.org/10.3897/phytokeys.163.38393
  9. Linnaeus, C. (1753) Species Plantarum 1. L. Salvii, Holmiae (Stockholm), 560 pp. https://doi.org/10.5962/bhl.title.669
  10. Lu, S.L. & Phillips, S.M. (2006) Agrostis Linnaeus. In: Wu, Z.Y., Raven, P.H. & Hong, D.Y. (Eds.) Flora of China—Poaceae, 22. Science Press, Beijing & Missouri Botanical Garden Press, St. Louis, pp. 340–348.
  11. Molina, A.M., Rúgolo, Z.E., Ferrero, M.A., Palacio, P.C., Guerreiro, C. & Vega, A.S. (2021) Taxonomic revision of the genus Podagrostis (Poaceae, Pooideae, Poeae). Annals of the Missouri Botanical Garden 106: 245–270. https://doi.org/10.3417/2021642
  12. Paszko, B. & Liu, B. (2016) First confirmed records of Agrostis scabra (Poaceae, Agrostidinae) in the Chinese Flora. Polish Botanical Journal 61 (2): 253–256. https://doi.org/10.1515/pbj-2016-0033
  13. Paszko, B. (2014) Agrostis pendryi (Poaceae: Agrostidinae)—a new species from the Central Himalaya. Phytotaxa 175 (1): 29–36. https://doi.org/10.11646/phytotaxa.175.1.3
  14. Peterson, P.M., Soreng, R.J., Romaschenko, K., Barberá, P., Quintanar, A. & Aedo, C. (2019) New combinations and new names in American Cinnagrostis, Peyritschia and Deschampsia, and three new genera: Greeneochloa, Laegaardia and Paramochloa (Poeae, Poaceae). Phytoneuron 2019–39: 1–23.
  15. Peterson, P.M., Soreng, R.J., Romaschenko, K., Barberá, P., Quintanar, A., Aedo, C. & Saarela, J.M. (2022) Phylogeny and biogeography of Calamagrostis (Poaceae: Pooideae: Poeae: Agrostidinae), description of a new genus, Condilorachia (Calothecinae), and expansion of Greeneochloa and Pentapogon (Echinopogoninae). J. Syst. Evol 60 (3): 570–590. https://doi.org/10.1111/jse.12819
  16. Peterson, P.M., Soreng, R.J., Romaschenko, K., Barberá, P., Quintanar, A., Aedo, C. & Saarela, J.M. (2025) Phylogeny, biogeography, reticulation, and classification of Agrostis (Poaceae: Pooideae: Poeae: Agrostidinae) with expansion of Polypogon to include Lachnagrostis (in part). Journal of Systematics and Evolution. https://doi.org/10.1111/jse.13175
  17. POWO (2024) Plants of the World Online. Available from: http://www.plantsoftheworldonline.org/ (accessed 24 April 2025)
  18. Prasad, D., Yadav, R. Sharma, S. & Agnihotri1, P. (2024) A New Record of Agrostis clavata (Poaceae) for the Indian Flora. The Journal of Japanese Botany 99 (1): 54–57.
  19. Prasad, D., Yadav, R., Jaiswal, S., Tripathi, S. & Agnihotri, P. (2021) Agrostis barikii (Poaceae: Agrostidinae), a new grass species from Western Himalaya, India. Phytotaxa 494 (1): 145–150. https://doi.org/10.11646/phytotaxa.494.1.11
  20. QGIS Version 3.28.13 (2025) Geographic Information System. Open-Source Geospatial Foundation Project. Available from: http://qgis.osgeo.org/ (accessed 15 March 2025)
  21. Rajbhandari, K.R. (1985) The genus Agrostis in NepaI. The Journal of Japanese Botany 60 (3): 65–78.
  22. Saarela, J.M., Bull, R.D., Paradis, M.J., Ebata, S.N., Peterson, P.M., Soreng, R.J. & Paszko, B. (2017) Molecular phylogenetics of cool‐season grasses in the subtribes Agrostidinae, Anthoxanthinae, Aveninae, Brizinae, Calothecinae, Koeleriinae and Phalaridinae (Poaceae, Pooideae, Poeae, Poeae chloroplast group I). PhytoKeys 87: 1–139. https://doi.org/10.3897/phytokeys.87.12774
  23. Scribner, F.L. & Merrill, E.D. (1910) The Grasses of Alaska. Contributions from the United States National Herbarium 13 (3): 47–92.
  24. Singh, H., Prasad, D., Agnihotri, P. & Barik, S.K. (2021) Agrostis dshungarica (Poaceae, Agrostidinae)—A New Record from India. The Journal of Japanese Botany 96 (4): 235–237.
  25. Singh, P. (1996) Subfamily Pooideae (Poaceae). In: Hajra, P.K. & Verma, D.M. (Eds.) Flora of Sikkim: Volume 1: Monocotyledons. Botanical Survey of India, pp. 276–336.
  26. Soreng, R.J., Peterson, P.M., Romaschenko, K., Davidse, G., Teisher, J.K., Clark, L.G., Barbera, P., Gillespie, L.J. & Zuloaga, F.O. (2017) A worldwide phylogenetic classification of the Poaceae (Gramineae) II: An update and a comparison of two 2015 classifications. Journal of Systematics and Evolution 55 (4): 259–290. https://doi.org/10.1111/jse.12262
  27. Steudel, E.G. (1854) Synopsis plantarum glumacearum Part I. J.B. Metzler, Stuttgartiae, 475 pp. https://doi.org/10.5962/bhl.title.471
  28. Sylvester, S.P., Cuta-Alarcon, L.E., Bravo-Pedraza, W.J. & Soreng, R.J. (2020) Agrostis and Podagrostis (Agrostidinae, Poaceae) from páramos of Boyacá, Colombia: synoptic taxonomy including a key to Colombian species. PhytoKeys 151: 107–160. https://doi.org/10.3897/phytokeys.151.50538
  29. Thiers, B.M. (2025 [Updated continuously]) Index Herbariorum. Available from: https://sweetgum.nybg.org/science/ih/ (accessed 19 May 2025)
  30. Trinius, C.B. (1821) Agrostographische Beyträge. In: Sprengel, K. (Ed.) Neue Entdeckungen im ganzen Umfang der Pflanzenkunde. Vol. 2. Friedrich Fleischer, Leipzig, pp. 33–94.
  31. Trinius, C.B. (1841) Gramina Agrostidea II, Callo rotundo (Agrostea). Mémoires de l’Académie Impériale des Sciences de Saint-Pétersbourg. Sixième Série. Sciences Mathématiques, Physiques et Naturelles, 2. Sciences Naturelles 6 (2): 247–390.
  32. Tzvelev, N.N. (2001) Gramineae (Grasses). In: Grubov, V.I. Plants of Central Asia-Plant Collection from China and Mongolia, Vol. 4. CRC Press, 328 pp.
  33. Tzvelev, N.N. (1976) Zlaki SSSR. Nauka, Leningrad, 788 pp.
  34. Tzvelev, N.N. (1983) Grasses of the Soviet Union, part 2. Amerid Publishing, New Delhi, India, 1230 pp.
  35. Tzvelev, N.N. & Probatova, N.S. (2012) The taxonomic revision of the genera Deschampsia, Agrostis, Calamagrostis (Poaceae: Poeae) and the system of grasses in the flora of Russia. Komarovskie Chteniya (Vladivostok) 59: 7–75. [in Russian]
  36. Veldkamp, J.F. (1982) Agrostis (Gramineae) in Malesia and Taiwan. Blumea 28: 199–228. [https://archive.org/details/blumea-0006-5196-28-199-228/mode/1up]
  37. Willdenow, C.L. (1797) Species plantarum 1 (1). Ed. 4. G. C. Nauk, Berolinum, 495 pp.

How to Cite

Prasad, D., Tiwari, S., Sharma, S., Yadav, R. & Agnihotri, P. (2025) Agrostis tsomgoensis (Poaceae, Agrostidinae)––a new pooid grass species from Sikkim Himalaya, India. Phytotaxa 706 (2): 163–170. https://doi.org/10.11646/phytotaxa.706.2.6