Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 740 No. 1: 3 Feb. 2026
Type: Article
Published: 2026-02-03
DOI: 10.11646/phytotaxa.740.1.7
Page range: 86-96
Abstract views: 38
PDF downloaded: 1

A new species of Collybiopsis (Omphalotaceae, Agaricales) from India

Microbiology Division, Jawaharlal Nehru Tropical Botanic Garden & Research Institute, Palode, Thiruvananthapuram, Kerala 695 562, India
Postgraduate and Research Department of Botany, Government College for Women, Thiruvananthapuram, Kerala 695 014, India; Centre for Applied Mycology and Lichenology, Department of Botany, Government College for Women, Thiruvananthapuram, Kerala 695014, India
Microbiology Division, Jawaharlal Nehru Tropical Botanic Garden & Research Institute, Palode, Thiruvananthapuram, Kerala 695 562, India
Gymnopus Kerala Marasmius molecular phylogeny taxonomy Fungi

Abstract

A novel species of Collybiopsis was discovered during an investigation on the diversity of agaricoid fungi in Kerala State, India. The identification and characterization of this taxon were carried out through detailed morphological examinations, coupled with a two-locus phylogenetic analysis. A combined dataset of nucleotide sequences from the internal transcribed spacer (nrITS) and the large subunit (nLSU) regions confirmed the distinct phylogenetic placement of the species within the genus Collybiopsis. Herein, we provide a comprehensive description, detailed illustrations, and phylogenetic analysis results of C. brunneigalera, highlighting its unique diagnostic features and phylogenetic affinities.

References

  1. Antonín, V. & Noordeloos, M.E. (1993) A monograph of Marasmius, Collybia, and related genera in Europe: Marasmius, Setulipes, and Marasmiellus. Libri Botanici 8: 1–229.
  2. Choudhary, S., Sharma, Y.P. & Uniyal, P. (2025) Collybiopsis himalayensis sp. nov. (Omphalotaceae), a new white-spored agaric from the Indian Himalaya. Lilloa 62 (2): 425–436. https://doi.org/10.30550/j.lil/2003
  3. Cho, M., Kwon, S.L., Kim, C. & Kim, J.J. (2024) Notes of five wood-decaying fungi from Juwangsan National Park in Korea. Mycobiology 52: 30–41. https://doi.org/10.1080/12298093.2023.2299098
  4. Cho, M., Yoo, Y., Lee, S.H., Kwon, D.Y., Kim, C., Lee, Y.M., Kwon, S.L. & Kim, J.J. (2025) Two new species of Collybiopsis (Agaricales, Omphalotaceae) from Mudeungsan National Park in Korea. Mycobiology 53 (5): 676–683. https://doi.org/10.1080/12298093.2025.2538925
  5. Corner, E.J.H. (1996) The agaric genera Marasmius, Chaetocalathus, Crinipellis, Heimiomyces, Resupinatus, Xerula, and Xerulina in Malesia. Beihefte Nova Hedwigia 111: 1–175.
  6. Darriba, D., Taboada, G.L., Doallo, R. & Posada, D. (2012) jModelTest 2: more models, new heuristics and parallel computing. Nature Methods 9: 772. https://doi.org/10.1038/nmeth.2109
  7. Ding, L., Zhong, B.-J., Zeng, H., Wang, S.-N. & Yan, J.-Q. (2025) Four new species of Collybiopsis (Omphalotaceae, Agaricales) from subtropical regions of China. MycoKeys 118: 289–311. https://doi.org/10.3897/mycokeys.118.155560
  8. Dutta, A.K., Wilson, A.W., Antonín, V. & Acharya, K. (2015) Taxonomic and phylogenetic study on gymnopoid fungi from Eastern India. I. Mycological Progress 14: 79. https://doi.org/10.1007/s11557-015-1094-3
  9. Earle, F.S. (1909) The genera of the North American gill fungi. Bulletin of the New York Botanical Garden 5: 373–451.
  10. Farris, J.S., Källersjö, M., Kluge, A.G. & Bult, C. (1994) Testing phylogenetic congruence. Cladistics 10: 315–319. https://doi.org/10.1111/j.1096-0031.1994.tb00181.x
  11. Hall, T. (2011) BioEdit: an important software for molecular biology. GErF Bulletin of Biosciences 2 (1): 60–61.
  12. Hughes, K.W. & Petersen, R.H. (2015) Transatlantic disjunction in fleshy fungi III: Gymnopus confluens. MycoKeys 9: 37–63. https://doi.org/10.3897/mycokeys.9.4700
  13. Izumitsu, K., Hatoh, K., Sumita, T., Kitade, Y., Morita, A., Gafur, A., Ohta, A., Kawai, M., Yamanaka, T., Neda, H., Ota, Y. & Tanaka, C. (2012) Rapid and simple preparation of mushroom DNA directly from colonies and fruiting bodies for PCR. Mycoscience 53: 396–401. https://doi.org/10.1007/S10267-012-0182-3
  14. Katoh, K. & Standley, D.M. (2013) MAFFT multiple sequence alignment software version 7: improvements in performance and usability. Molecular Biology and Evolution 30 (4): 772–780. https://doi.org/10.1093/molbev/mst010
  15. Kim, J.S., Cho, Y., Park, K.H., Park, J.H., Kim, M., Kim, C.S. & Lim, Y.W. (2022) Taxonomic study of Collybiopsis (Omphalotaceae, Agaricales) in the Republic of Korea with seven new species. MycoKeys 88: 79–108. https://doi.org/10.3897/mycokeys.88.79266
  16. Kornerup, A. & Wanscher, J.H. (1978) Methuen Handbook of Colour. Eyre Methuen Ltd., London, UK, 252 pp.
  17. Lennox, D.H. (1979) The genus Rhodocollybia (Agaricales). Mycotaxon 9 (1): 1–85. https://doi.org/10.5962/p.417191
  18. Li, J.P., Oliveira, J.J.S., Pan, M.C., Deng, C.Y., Antonín, V., Xiao, Z.D., Li, F.F., Li, T.H., Li, C.T., Dai, Y.T. & Li, Y. (2024) Notes on all genera of Omphalotaceae: expanding the taxonomic spectrum in China and revisiting historical type specimens. Mycosphere 15 (1): 1522–1594. https://doi.org/10.5943/mycosphere/15/1/13
  19. Liu, X.C., Lin, Z.J., Liang, Y.S., Cao, L.X. & Qiu, L.H. (2024) Collybiopsis baiyunensis sp. nov. (Omphalotaceae, Agaricales) from Baiyun Mountain, southern China. Phytotaxa 640 (2): 183–195. https://doi.org/10.11646/phytotaxa.640.2.7
  20. Mata, J.L., Hughes, K.W. & Petersen, R.H. (2004) Phylogenetic placement of Marasmiellus juniperinus. Mycoscience 45: 214–221. https://doi.org/10.1007/S10267-004-0170-3
  21. Murrill, W.A. (1915) Agaricaceae (pars). Flora of North America 9: 286–296.
  22. Oliveira, J.J., Vargas-Isla, R., Cabral, T.S., Rodrigues, D.P. & Ishikawa, N.K. (2019) Progress on the phylogeny of the Omphalotaceae: Gymnopus s. str., Marasmiellus s. str., Paragymnopus gen. nov. and Pusillomyces gen. nov. Mycological Progress 18 (5): 713–739. https://doi.org/10.1007/s11557-019-01483-5
  23. Petersen, R.H. & Hughes, K.W. (2014) New North American species of Gymnopus. North American Fungi 9: 1–22. https://doi.org/10.2509/naf2014.009.003
  24. Petersen, R.H. & Hughes, K.W. (2021) Collybiopsis and its type species, Co. ramealis. Mycotaxon 136 (2): 263–349. https://doi.org/10.5248/136.263
  25. Petersen, R.H. & Hughes, K.W. (2024) Two new species of Collybiopsis (Agaricales, Omphalotaceae) from eastern North America. MycoKeys 107: 95–124. https://doi.org/10.3897/mycokeys.107.122634
  26. Rambaut, A. (2009) FigTree v1.3.1. Institute of Evolutionary Biology, University of Edinburgh. [http://tree.bio.ed.ac.uk/software/figtree/]
  27. Rambaut, A., Drummond, A.J., Xie, D., Baele, G. & Suchard, M.A. (2018) Posterior summarization in Bayesian phylogenetics using Tracer 1.7. Systematic Biology 67 (5): 901–904. https://doi.org/10.1093/sysbio/syy032
  28. Razzaq, F., Khalid, A.N. & Ashraf, S. (2023) Collybiopsis pakistanica (Omphalotaceae, Agaricales, Basidiomycota), a new mushroom species from Margalla Hills, Pakistan and two new combinations. Nordic Journal of Botany 4: e03849. https://doi.org/10.1111/njb.03849
  29. Retnowati, A. (2018) The species of Marasmiellus (Agaricales: Omphalotaceae) from Java and Bali. Gardens’ Bulletin Singapore 70 (1): 191–258. https://doi.org/10.26492/gbs70(1).2018-17
  30. Ronquist, F., Teslenko, M., van der Mark, P., Ayres, D.L., Darling, A., Höhna, S., Larget, B., Liu, L., Suchard, M.A. & Huelsenbeck, J.P. (2012) MrBayes 3.2: efficient Bayesian phylogenetic inference and model choice across a large model space. Systematic Biology 61: 539–542. https://doi.org/10.1093/sysbio/sys029
  31. Singer, R. (1939) Neue und interessante Agaricales aus dem Herbarium Singer. Schweizerische Zeitschrift für Pilzkunde 17: 71.
  32. Singer, R. (1973) The genera Marasmiellus, Crepidotus and Simocybe in the Neotropics. Nova Hedwigia Beihefte 44: 1–517. https://doi.org/10.2307/3758379
  33. Trifinopoulos, J., Nguyen, L.-T., von Haeseler, A. & Minh, B.Q. (2016) W-IQ-TREE: a fast online phylogenetic tool for maximum likelihood analysis. [Online] https://doi.org/10.1093/nar/gkw256
  34. Vilgalys, R. & Hester, M. (1990) Rapid genetic identification and mapping of enzymatically amplified ribosomal DNA from several Cryptococcus species. Journal of Bacteriology 172 (8): 4238–4246. https://doi.org/10.1128/jb.172.8.4238-4246.1990
  35. Wei, Y.L. & Dai, Y.C. (2004) Ecological function of wood-inhabiting fungi in forest ecosystem. Chinese Journal of Applied Ecology 15 (10): 1935–1938.
  36. White, T.J., Bruns, T.D., Lee, S.B., Taylor, J.W., Innis, M.A., Gelfand, D.H. & Sninsky, J. (1990) Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics. In: Innis, M.A., Gelfand, D.H., Sninsky, J.J. & White, T.J. (Eds.) PCR Protocols: A Guide to Methods and Applications. Academic Press, San Diego, pp. 315–322. https://doi.org/10.1016/B978-0-12-372180-8.50042-1
  37. Yang, W.Q., Zhang, J.R., Cao, M.T., Hu, Z.L. & Zhao, R.L. (2025) Two new species of Collybiopsis (Agaricales, Omphalotaceae) from Beijing, China. Phytotaxa 715 (1): 47–60. https://doi.org/10.11646/phytotaxa.715.1.3

How to Cite

Ratheesh, S., Kumar, A.M. & Pradeep, C. (2026) A new species of Collybiopsis (Omphalotaceae, Agaricales) from India. Phytotaxa 740 (1): 86–96. https://doi.org/10.11646/phytotaxa.740.1.7