Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 716 No. 1: 26 Aug. 2025
Type: Article
Published: 2025-08-26
DOI: 10.11646/phytotaxa.716.1.7
Page range: 65-70
Abstract views: 1118
PDF downloaded: 7

Pyxine janakiae (Caliciaceae): A new lichen species from the Southern Western Ghats, India

Lichenology Lab, Post Graduate and Research Department of Botany, Maharaja’s College, Ernakulam - 682 011, Kerala, India
Lichenology Lab, Post Graduate and Research Department of Botany, Maharaja’s College, Ernakulam - 682 011, Kerala, India
Lichenology Lab, Post Graduate and Research Department of Botany, Maharaja’s College, Ernakulam - 682 011, Kerala, India
Lichenized Ascomycota Western Ghats Kerala Idukki Mathikettan Shola National Park Fungi

Abstract

A new saxicolous lichen species, Pyxine janakiae, belonging to the family Caliciaceae is described from Mathikettan Shola National Park, Kerala, India. The new species is morphologically similar to Pyxine himalayensis but differs by the absence of pseudocyphellae on the thallus, an internal stipe that is brown to brownish orange with a white colouration in the lower region, and different TLC components.

References

  1. Aptroot, A., Jungbluth, P. & Cáceres, M. (2014) A world key to the species of Pyxine with lichexanthone, with a new species from Brazil. Lichenologist 46 (5): 1–4. https://doi.org/10.1017/S0024282914000231
  2. Awasthi, D.D. (1980) Pyxine in India. Phytomorphology 30: 359–379.
  3. Awasthi, D.D. (1982) Pyxine in India. Phytomorphology 30 (4): 359–379.
  4. Awasthi, D.D., Srivastava, P. (1993) New species of Pertusaria (lichenized fungi) from India. The Bryologist 96 (2): 210–215. https://doi.org/10.2307/3243803
  5. Awasthi, D.D. (2007) A Compendium of the Macrolichens from India, Nepal and Sri Lanka. Bishen Singh Mahendra Pal Singh, Dehra Dun, India, 580 pp.
  6. Elix, J.A. (2009) Pyxine. Flora of Australia 57: 517–533.
  7. Elix, J.A. (2014) A Catalogue of Standardized Chromatographic Data and Biosynthetic Relationships for Lichen Substances. 3rd ed. Research School of Chemistry, Australian National University, Canberra, A.C.T. 0200, Australia, 323 pp.
  8. Fries, E.M. (1825) Systema Orbis Vegetabilis. e Typographia academica, 369 pp.
  9. Hale, M.E. (1974) New combinations in the lichen genus Parmotrema Massalongo. Phytologia 28 (4): 334–339.
  10. Haridas, B., Aliyarukunju, S. & Sugathan, S. (2023) Lichen flora in Western Ghats of Kerala, India: A Source of Innovation. In: Microbial Biodiversity, Biotechnology and Ecosystem Sustainability, Springer Nature, Singapore, pp. 109–135. https://doi.org/10.1007/978-981-19-4336-2_7
  11. Hu, G.R. & Chen, J.B. (2003) The lichen family Physciaceae (Ascomycota) in China VI. The genus Pyxine. Mycotaxon 86: 445–454.
  12. Imshaug, H.A. (1957) The lichen genus Pyxine in North and Middle America. Transactions of the American Microscopical Society 76 (3): 246–269. https://doi.org/10.2307/3223889
  13. Jungbluth, P. & Marcelli, M.P. (2011) The Pyxine pungens complex in Sao Paulo state, Brazil. The Bryologist 114 (1): 166–177. https://doi.org/10.1639/0007-2745-114.1.166
  14. Kalb, K. (1987) Brasilianische Flechten 1. Die Gattung Pyxine. Bibliotheca Lichenologica 24: 1–89.
  15. Kalb, K. (1994) Pyxine species from Australia. Herzogia 10: 61–69. https://doi.org/10.1127/herzogia/10/1994/61
  16. Kashiwadani, H. (1977) The genus Pyxine (lichens) in Papua New Guinea. Bulletin of the National Science Museum Tokyo 3: 63–70.
  17. Lynge, B. (1937) Lichenes africanici novi ab E.A. Vainio recogniti. Revue Bryologique et Liche´nologique 10: 78–91.
  18. Malme, G.O.A. (1897) Die Flechten der ersten Regnellschen Expedition. I. Die Gattung Pyxine (Fr.) Nyl. Bihang til Kongliga Svenska Vetenskaps-Akademiens Handlingar 23 (13): 1–52.
  19. Moberg, R. (1983) Studies on Physciaceae (Lichen) II. The genus Pyxine in Europe. Lichenologist 15 (2): 161–167. https://doi.org/10.1017/S0024282983000250
  20. Mongkolsuk, P., Meesim, S., Poengsungnoen, V. & Kalb, K. (2012) The lichen family Physciaceae in Thailand—I. The genus Pyxine. Phytotaxa 59: 32–54. https://doi.org/10.11646/phytotaxa.59.1.2
  21. Montagne, C. (1842) Histoire physique, politique et naturelle de l’Ile de Cuba. Botanique, Plantes cellulaires 9: 124.
  22. Nayaka, S. & Haridas, B. (2023) Lichen-Forming and Lichenicolous Fungi of the Western Ghats, India. In: Biodiversity Hotspot of the Western Ghats and Sri Lanka, Apple Academic Press, New York, pp. 89–107. https://doi.org/10.1201/9781003408758-6
  23. Nayaka, S., Upreti, D.K., Ponmurugan, P. & Ayyappadasan, G. (2013) Two new species of saxicolous Pyxine with yellow medulla from southern India. Lichenologist 45 (1): 3–8. https://doi.org/10.1017/S0024282912000618
  24. Nylander, W. (1873) Lichenes insularum Andaman. Bulletin de la Société Linnéenne de Normandie 7: 162–182.
  25. Nylander, W. (1890) Lichenes Japoniae. Accedunt Observationibus Lichenes Insulae Labuan. 1–122.
  26. Obermayer, W. & Kalb, K. (2010) Notes on three species of Pyxine (Lichenized Ascomycetes) from Tibet and adjacent regions. Bibliotheca Licheologica 104: 247–267.
  27. Orange, A., James, P.W. & White, F.J. (2001) Microchemical Methods for the Identification of Lichen. 2nd ed. British Lichen Society, London.
  28. Prieto, M. & Wedin, M. (2016) Phylogeny, taxonomy and diversification events in the Caliciaceae. Fungal Diversity 82 (1): 221–238. https://doi.org/10.1007/s13225-016-0372-y
  29. Rambold, G. (1989) A monograph of the saxicolous lecideoid lichens of Australia (excl. Tasmania). Bibliotheca Lichenologica 34: 1–345.
  30. Rogers, R.W. (1986) The genus Pyxine (Physciaceae, lichenized ascomycetes) in Australia. Australian Journal of Botany 34: 131–154. https://doi.org/10.1071/BT9860131
  31. Sequeira, S. (2022) Diversity, distribution and conservation of lichens in Kerala. In: Seethalakshmi, K.K., Haridasan, K., Nair, M.C. & Rekha, V.A. (Eds.) Conspectus on realms of biodiversity, Victoria Botany Alumni Association (VIBA), Dept. of Botany, Govt. Victoria College, Palakkad, Kerala, India, pp. 368–386.
  32. Singh, S.R. & Awasthi, D.D. (1981) The lichen genus Buellia in India. Biological Memoirs 6: 169–196.
  33. Singh, K.P. & Sinha, G.P. (2010) Indian Lichens: An Annotated Checklist. Botanical Survey of India, Kolkata, India, 571 pp.
  34. Stirton, J. (1879) New and rare lichens from India and the Himalayas. Proceedings of the Philosophical Society of Glasgow 11: 306–322.
  35. Wijayawardene, N.N., Hyde, K.D., Al-Ani, L.K.T., Tedersoo, L., Haelewaters, D., Rajeshkumar, K.C., Zhao, R.L., Aptroot, A., Leontyev, D.V., Saxena, R.K., Tokarev, Y.S., Dai, D.Q., Letcher, P.M., Stephenson, S.L., Ertz, D., Lumbsch, H.T., Kukwa, M., Issi, I.V., Madrid, H., Phillips, A.J.L., Selbmann, L., Pfliegler, W.P., Horváth, E., Bensch, K., Kirk, P.M., Kolaříková, K., Raja, H.A., Radek, R., Papp, V., Dima, B., Ma, J., Malosso, E., Takamatsu, S., Rambold, G., Gannibal, P.B., Triebel, D., Gautam, A.K., Avasthi, S., Suetrong, S., Timdal, E., Fryar, S.C., Delgado, G., Réblová, M., Doilom, M., Dolatabadi, S., Pawłowska, J.Z., Humber, R.A., Kodsueb, R., Sánchez-Castro, I., Goto, B.T., Silva, D.K.A., de Souza, F.A., Oehl, F., da Silva, G.A., Silva, I.R., Błaszkowski, J., Jobim, K., Maia, L.C., Barbosa, F.R., Fiuza, P.O., Divakar, P.K., Shenoy, B.D., Castañeda-Ruiz, R.F., Somrithipol, S., Lateef, A.A., Karunarathna, S.C., Tibpromma, S., Mortimer, P.E., Wanasinghe, D.N., Phookamsak, R., Xu, J., Wang, Y., Tian, F., Alvarado, P., Li, D.W., Kušan, I., Matočec, N., Mešić, A., Tkalčec, Z., Maharachchikumbura, S.S.N., Papizadeh, M., Heredia, G., Wartchow, F., Bakhshi, M., Boehm, E., Youssef, N., Hustad, V.P., Lawrey, J.D., Santiago, A.L.C.M.A., Bezerra, J.D.P., Souza-Motta, C.M., Firmino, A.L., Tian, Q., Houbraken, J., Hongsanan, S., Tanaka, K., Dissanayake, A.J., Monteiro, J.S., Grossart, H.P., Suija, A., Weerakoon, G., Etayo, J., Tsurykau, A., Vázquez, V., Mungai, P., Damm, U., Li, Q.R., Zhang, H., Boonmee, S., Lu, Y.Z., Becerra, A.G., Kendrick, B., Brearley, F.Q., Motiejūnaitė, J., Sharma, B., Khare, R., Gaikwad, S., Wijesundara, D.S.A., Tang, L.Z., He, M.Q., Flakus, A., Rodriguez-Flakus, P., Zhurbenko, M.P., McKenzie, E.H.C., Stadler, M., Bhat, D.J., Liu, J.K., Raza, M., Jeewon, R., Nassonova, E.S., Prieto, M., Jayalal, R.G.U., Erdoğdu, M., Yurkov, A., Schnittler, M., Shchepin, O.N., Novozhilov, Y.K., Silva-Filho, A.G.S., Gentekaki, E., Liu, P., Cavender, J.C., Kang, Y., Mohammad, S., Zhang, L.F., Xu, R.F., Li, Y.M., Dayarathne, M.C., Ekanayaka, A.H., Wen, T.C., Deng, C.Y., Pereira, O.L., Navathe, S., Hawksworth, D.L., Fan, X.L., Dissanayake, L.S., Kuhnert, E., Grossart, H.P. & Thines, M. (2017) Notes for genera: Ascomycota. Fungal Diversity 86: 1–594. https://doi.org/10.5943/mycosphere/11/1/8
  36. Xin, L.W. & Hur, J.S. (2007) Foliose genera of Physciaceae (lichenized Ascomycota) of South Korea. Mycotaxon 102: 127–137.
  37. Yang, M.X., Wang, X.Y., Liu, D., Zhang, Y.Y., Li, L.J., Yin, A.C., Scheidegger, C. & Wang, L.S. (2018) New species and records of Pyxine (Caliciaceae) in China. MycoKeys 45: 93–109. https://doi.org/10.3897/mycokeys.45.29374
  38. Zachariah, S.A., Nayaka, S., Gupta, P. & Varghese, S.K. (2019) The lichen genus Pyxine (Caliciaceae) in Kerala state with P. dactyloschmidtii as new to India. Hattoria 10: 109–117.
  39. Zahlbruckner, A. (1928) Neue und ungenügend beschriebene javanische Flechten. Annales de Cryptogamie Exotique 1: 109–212.

How to Cite

Anilkumar, A., Christy, A. & Sequeira, S. (2025) Pyxine janakiae (Caliciaceae): A new lichen species from the Southern Western Ghats, India. Phytotaxa 716 (1): 65–70. https://doi.org/10.11646/phytotaxa.716.1.7