Abstract
Two new Pluteus species, P. fuscipruinatus and P. chimminiensis belonging to sect. Celluloderma, are described based on specimens collected from Kerala state, India. Maximum Likelihood phylogenetic analysis using nrITS revealed that P. fuscipruinatus belongs to the /ephebeus clade, while P. chimminiensis belongs to the cinereofuscus clade. Detailed descriptions supplemented with field images, microscopic features, phylogenetic analysis, and comparative assessments with allied taxa are provided. A key to the species of Pluteus sect. Celluloderma known to occur in India is also provided.
References
- Desjardin, D.E. & Perry, B.A. (2018) The genus Pluteus (Basidiomycota, Agaricales, Pluteaceae) from Republic of Sáo Tomé and Principe, West Africa. Mycosphere 9: 598–617. https://doi.org/10.5943/mycosphere/9/3/10
- Ferisin, G., Dovana, F. & Justo, A. (2020) Erratum to: Fungal Systematics and Evolution: FUSE 5. Sydowia 71: 285. https://doi.org/10.12905/0380.
- He, M.Q., Zhao, R.L., Hyde, K.D., Begerow, D., Kemler, M., Yurkov, A., McKenzie, E.H.C., Raspé, O., Kakishima, M., Sánchez-Ramírez, S., Vellinga, E.C., Halling, R., Papp, V., Zmitrovich, I.V., Buyck, B., Ertz, D., wijayawardene, N.N., Cui, B.K., Schoutteten, N., Liu, X.Z., Li, T.H., Yao, Y.J., Zhu, X.Y., Liu, A.Q., Li, G.J., Zhang, M.Z., Ling, Z.L., Cao, B., Antonín, V., Boekhout, T., Da Silva, B.D.B., De Crop, E., Decock, C., Dima, B., Dutta, A.K., Fell, J.w., Geml, J., Ghobad-Nejhad, M., Giachini, A.J., Gibertoni, T.B., Gorjón, S.P., Haelewaters, D., He, S.H., Hodkinson, B.P., Horak, E., Hoshino, T., Justo, A., Lim, Y.W., Menolli Jr, N., Mešić, A., Moncalvo, J.M., Mueller, G.M., Nagy, L.G., Nilsson, R.H., Noordeloos, M., Nuytinck, J., Orihara, T., Ratchadawan, C., Rajchenberg, M., Silva Filho, A.G.S., Sulzbacher, M.A., Tkalčec, Z., Valenzuela, R., Verbeken, A., Vizzini, A., Wartchow, F., Wei, T.Z., Weiß, M., Zhao, C.L. & Kirk, P.M. (2019) Notes, outline and divergence times of Basidiomycota. Fungal diversity 99: 105–367. https://doi.org/10.1007/s13225-019-00435-4
- Hosen, M.I., Liang, X., Xu, J. & Li, T.H. (2019) Pluteus squarrosus sp. nov. (Pluteus sect. Celluloderma, Pluteaceae) from northeast China. Nordic Journal of Botany 37 (8): e02427. https://doi.org/10.1111/njb.02427
- 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
- Justo, A., Caballero, A., Muñoz, G., Minnis, A.M. & Malysheva, E. (2011c) Taxonomy of Pluteus eugraptus and morphologically similar taxa. Mycologia 103: 646–655. https://doi.org/10.3852/10-280
- Justo, A., Minnis, A.M., Ghinone, S., Menolli, N. Jr., Capelari, M., Rodríguez, O., Malysheva, E., Contu, M. & Vizzini, A. (2011b) Species recognition in Pluteus and Volvopluteus (Pluteaceae, Agaricales): morphology, geography and phylogeny. Mycological Progress 10: 453–479. https://doi.org/10.1007/s11557-010-0716-z
- Justo, A., Vizzini, A., Minnis, A.M., Menolli, N. Jr., Capelari, M., Rodríguez, O., Malysheva, E., Contu, M., Ghinone, S. & Hibbett, D.S. (2011a) Phylogeny of Pluteaceae (Agaricales, Basidiomycota): taxonomy and character evolution. Fungal Biology 115: 1–20. https://doi.org/10.1016/j.funbio.2010.09.012.
- Justo, A., Malysheva, E., Bulyonkova, T., Vellinga, E.C., Cobian, G., Nguyen, N., Minnis, A.M. & Hibbett, D.S. (2014) Molecular phylogeny and phylogeography of Holarctic species of Pluteus section Pluteus (Agaricales: Pluteaceae), with description of twelve new species. Phytotaxa 180: 1–85. https://doi.org/10.11646/phytotaxa.180.1.1
- Katoh, K., Rozewicki, J. & Yamada, K.D. (2019) MAFFT online service: multiple sequence alignment, interactive sequence choice and visualization. Briefings in Bioinformatics 20 (4): 1160–1166. https://doi.org/10.1093/bib/bbx108
- Kaygusuz, O., Knudsen, H., Menolli, N., Jr. & Türkekul, I. (2021) Pluteus anatolicus (Pluteaceae, Agaricales): a new species of Pluteus sect. Celluloderma from Turkey based on both morphological and molecular evidence. Phytotaxa 482: 240–250. https://doi.org/10.11646/phytotaxa.482.3.2
- Keerthi, V., Justo, A., Ševčíková, H. & Pradeep, C.K. (2024) Pluteus section Celluloderma (Pluteaceae): two new species in the Pluteus podospileus clade. Phytotaxa 635 (2): 113–125. https://doi.org/10.11646/phytotaxa.635.2.1
- Keerthi, V. & Pradeep, C.K. (2023) A new species of Pluteus sect. Celluloderma from Kerala State, India. Nordic Journal of Botany 2023 (6): e03974. https://doi.org/10.1111/njb.03974
- Kornerup, A. & Wanscher, J.H. (1978) Methuen Handbook of Colour. 3 edn. Eyre Methuen, London.
- Kumar, A.M., Vrinda, K.B. & Pradeep, C.K. (2018) Two new species of Crepidotus (Basidiomycota, Agaricales) from peninsular India. Phytotaxa 372 (1): 67–78. https://doi.org/10.11646/phytotaxa.372.1.5
- Kummer, P. (1871) Der Führer in die Pilzkunde. Verlag von E. Luppe’s Buchhandlung, Zerbst, pp. 1–146.
- Largent, D.L., Johnson, D. & Watling, R. (1977) How to identify mushrooms to genus III: microscopic features. 3rd ed. Mad River PressInc., Eureka. California, USA, 148 pp.
- Larsson, A. (2014) AliView: A fast and lightweight alignment viewer and editor for large datasets. Bioinformatics 30: 3276–3278. https://doi.org/10.1093/bioinformatics/btu531
- Menolli, N. Jr., Asai, T. & Capelari, M. (2010) Records and new species of Pluteus from Brazil based on morphological and molecular data. Mycology 1: 130–153.
- Menolli, N. Jr., Justo, A. & Capelari, M. (2015) Phylogeny of Pluteus section Celluloderma including eight new species from Brazil. Mycologia 107 (6): 1205–1220. https://doi.org/10.3852/14-312
- Miller, M.A., Pfeiffer, W. & Schwartz, T. (2010) Creating the CIPRES science gateway for inference of large phylogenetic trees. In: Proceedings of the 2010 Gateway Computing Environments Workshop (GCE). New Orleans, LA, USA, IEEE: Manhattan, NY, USA. https://doi.org/10.1109/GCE.2010.5676129.
- Murrill, W.A. (1917) Pluteus. North American Flora 10 (2): 127–139.
- Pegler, D.N. (1977) A preliminary Agaric Flora of East Africa. Kew Bulletin Additional Series 6: 1–615.
- Pegler, D.N. (1986) Agaric Flora of Sri Lanka. Kew Bulletin Additional Series 12: 1–519
- Pradeep, C.K., Vrinda, K.B. & Abraham, T.K. (2002) Pluteus section Pluteus (Pluteaceae, Agaricales) from Kerala State India. Mycotaxon 83: 59–66.
- Pradeep, C.K. & Vrinda, K.B. (2005a) New records of Pluteus Fr. from Kerala. Mushroom Research 14: 1–4.
- Pradeep, C.K. & Vrinda, K.B. (2005b) New additions to the genus Pluteus Fr. from India. Mushroom Research 14: 46–49.
- Pradeep, C.K. & Vrinda, K.B. (2006) New and noteworthy species of Pluteus (Pluteaceae, Agaricales) from Kerala State, India. Persoonia 19 (1): 95–99.
- Pradeep, C.K. & Vrinda, K.B. (2008) Two new Pluteus (Basidiomycotina, Agaricales) from Kerala, India. Nova Hedwigia 87: 231–236.
- Pradeep, C.K., Justo, A., Vrinda, K.B. & Shibu, P.V. (2012) Two new species of Pluteus (Pluteaceae, Agaricales) from India and additional observations on Pluteus chrysaegis. Mycological Progress 11: 869–878. https://doi.org/10.1007/s11557-011-0801-y.
- Saccardo, P.A. (1887) Sylloge Hymenomycetum, vol. I. Agaricineae. Sylloge Fungorum 5: 1–1146.
- Ševčíková, H., Malysheva, E.F., Antonín, V., Borovička, J., Dovana, F., Ferisin, G., Eyssartier, G., Grootmyers, D., Heilmann-Clausen, J., Kalichman, J., Kaygusuz, O. & Justo, A. (2023) Holarctic species in the Pluteus podospileus clade: description of six new species and reassessment of old names. Journal of Fungi 9 (9): 898. https://doi.org/10.3390/jof9090898
- Ševčíková, H., Moreau, P.A. & Borovicka, J. (2020) Pluteus keselakii (Pluteaceae, Agaricales), a new species in section Celluloderma. Phytotaxa 432 (2): 181–189. https://doi.org/10.11646/phytotaxa.432.2.7
- Singer, R. (1956) Contribution toward a monograph of the genus Pluteus. Transactions of British Mycological Society 39: 145–232.
- Singer, R. (1958) Monograph of South American Basidiomycetes, especially those of the east slope of the Andes and Brazil. Lloydia 21: 195–299.
- Singer, R. (1959) Contributions towards a monograph of the genus Pluteus II. Transactions of the British Mycological Society 42 (2): 223–226.
- Singer, R. (1986) The Agaricales in modern Taxonomy. 4th edn. Koeltz Scientific Books, Koenigstein, pp. 981
- Stamatakis, A. (2014) RAxML version 8: A tool for phylogenetic analysis and post-analysis of large phylogenies. Bioinformatics 30: 1312–1313. https://doi.org/10.1093/bioinformatics/btu033
- White, T.J., Bruns, T., Lee, S.J.W.T. & Taylor, J. (1990) Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics. PCR protocols: a guide to methods and applications 18 (1): 315–322. https://doi.org/10.1016/b978-0-12-372180-8.50042-1