[en] Peltigera hydrophila, a new species from Chile tentatively distinguished based on phylogenetic evidence but not yet named, is formally described here. Morphological differences (e.g., non-tomentose thallus) and habitat preferences (semi-aquatic) corroborate molecular and phylogenetic distinctiveness of this early diverging lineage in section Peltigera. Due to overlapping ecological ranges, P. hydrophila shares some morphological traits with aquatic species from the phylogenetically unrelated section Hydrothyriae.
Aiello-Lammens, M. E., Boria, R. A., Radosavljevic, A., Vilela, B. & Anderson, R. P. 2015. spThin: an R package for spatial thinning of species occurrence records for use in ecological niche models. Ecography 38: 541-545.
Chagnon, P. L., Magain, N., Miadlikowska, J. & Lutzoni, F. 2019. Species diversification and phylogenetically constrained symbiont switching generated high modularity in the lichen genus Peltigera. Journal of Ecology 107: 1645-1661.
Culberson, C. F. & Ammann, K. 1979. Standardmethode zur Dünnschichtchromatographie von Flechtensubstanzen. Herzogia 5: 1-24.
Culberson, C. F. & Johnson, A. 1982. Substitution of methyl tert-butyl ether for diethyl ether in the standardized thin-layer chromatographic method for lichen products. Journal of Chromatography 128: 253-259.
De Siqueira, M. F., Durigan, G., de Marco Júnior, P. & Peterson, A. T. 2009. Something from nothing: Using landscape similarity and ecological niche modeling to find rare plant species. Journal for Nature Conservation 17: 25-32.
Elith, J., Graham, C. H., Anderson, R. P., Dudík, M. Ferrier, S., Guisan, A., Hijmans, R. J., Huettmann, F., Leathwick, J. R., Lehmann, A., Li, J., Lohmann, L. G., Loiselle, B. A., Manion, G., Moritz, C., Nakamura, M., Nakazawa, Y., Overton, J. M. M., Peterson, A. T., Phillips, S. J., Richardson, K., Scachetti-Pereira, R., Schapire, R. E., Soberón, J., Wiliams, S., Wisz, M. S. & Zimmermann, N. E. 2006. Novel methods improve prediction of species' distributions from occurrence data. Ecography 29: 129-151.
Fick, S. E. & Hijmans, R. J. 2017. WorldClim 2: new 1 km spatial resolution climate surfaces for global land areas. International Journal of Climatology 37: 4302-4315.
Fryday, A. M., Orange, A., Ahti, T., Øvstedal, D. O. & Crabtree, D. E. 2019. An annotated checklist of lichen-forming and lichenicolous fungi reported from the Falkland Islands (Islas Malvinas). Glalia 8: 1-100.
Hijmans, R. J., Phillips, S., Leathwick, J. & Elith, J. 2017. dismo: Species distribution modeling. R package version 1.1-4. Retrieved from http:// cran.r-project.org/package=dismo
Holtan-Hartwig, J. 1993. The lichen genus Peltigera, exclusive of the P. canina group, in Norway. Sommerfeltia 15: 1-77.
Kass, J. M., Vilela, B., Aiello-Lammens, M. E., Muscarella, R., Merow, C. & Anderson, R. P. 2018. Wallace: A flexible platform for reproducible modeling of species niches and distributions built for community expansion. Methods in Ecology and Evolution 9: 1151-1156.
Luebert, F. & Pliscoff, P. 2017. Sinopsis bioclimática y vegetacional de Chile. Editorial Universitaria, Santiago de Chile, Chile.
Magain, N., Miadlikowska, J., Goffinet, B., Sérusiaux, E. & Lutzoni. F. 2017a. Macroevolution of specificity in cyanolichens of the genus Peltigera section Polydactylon (Lecanoromycetes, Ascomycota). Systematic Biology 66: 74-99.
Magain, N., Miadlikowska, J., Mueller, O., Gajdeczka, M., Salamov, A., Grigoriev, I., Goffinet, B., Sérusiaux, E. & Lutzoni, F. 2017b. Conserved genomic collinearity as a source of broadly applicable, fast evolving, markers to resolve species complexes: a case study using the lichen-forming genus Peltigera section Polydactylon. Molecular Phylogenetics and Evolution 117: 10-29.
Magain, N., Truong, C., Goward, T., Niu, D., Goffinet, B., Sérusiaux, E., Vitikainen, O., Lutzoni, F. & Miadlikowska, J. 2018. Global species delimitation of Peltigera section Peltigera (lichenized Ascomycota, Lecanoromycetes) reveals high species richness with complex biogeographical history and patterns of associations. Taxon 67: 836-870.
Martínez, I., Burgaz, A. R., Vitikainen, O. & Escudero, A. 2003. Distribution patterns in the genus Peltigera Willd. Lichenologist 35: 301-323.
Miadlikowska, J. & Lutzoni, F. 2000. Phylogenetic revision of the genus Peltigera (lichen-forming ascomycetes) based on morphological, chemical and large subunit nuclear ribosomal DNA data. International Journal of Plant Sciences 161: 925-958.
Miadlikowska, J., Lutzoni, F., Goward, T., Zoller, S. & Posada, D. 2003. New approach to an old problem: Incorporating signal from gap-rich regions of ITS and nrDNA large subunit into phylogenetic analyses to resolve the Peltigera canina species complex. Mycologia 95: 1181-1203.
Miadlikowska, J., Kauff, F., Högnabba, F., Oliver, J. C., Molnár, K., Fraker, E., Gaya, E., Hafellner, J., Hofstetter, V., Gueidan, C., Kukwa, M., Lucking, M., Björk, C., Sipman, H. J. M., Burgaz, A. R., Thell, A., Passo, A., Myllys, L., Goward, T., Fernández-Brime, S., Hestmark, G., Lendemer, J., Lumbsch, H. T., Schmull, M., Schoch, C., Sérusiaux, E., Maddison, D. R., Arnold, A. E., Stenroos, S. & Lutzoni, F. 2014. Multigene phylogenetic synthesis for the class Lecanoromycetes (Ascomycota): 1307 fungi representing 1139 infrageneric taxa, 312 genera and 66 families. Molecular Phylogenetics and Evolution 79: 132-168.
Miadlikowska, J., Richardson, D., Magain, N., Ball, B., Anderson, F., Cameron, R., Lendemer, J., Truong, C. & Lutzoni, F. 2014. Phylogenetic placement, species delimitation, and cyanobiont identity of endangered aquatic Peltigera species (lichen-forming Ascomycota, Lecanoromycetes). American Journal of Botany 101: 1141-1156.
Miadlikowska, J., Magain, N., Pardo-De la Hoz, C., Niu, D., Goward, T., Sérusiaux, E. & Lutzoni, F. 2018. Species in section Peltidea (aphthosa group) of the genus Peltigera remain cryptic after molecular phylogenetic revision. Plant and Fungal Systematics 63: 45-64.
Muscarella, R., Galante, P. J., Soley-Guardia, M., Boria, R. A., Kass, J. M., Uriarte, M. & Anderson, R. P. 2014. ENMeval: An R package for conducting spatially independent evaluations and estimating optimal model complexity for Maxent ecological niche models. Methods in Ecology and Evolution 5: 1198-1205.
Nelson, P. R. & Wheeler, T. B. 2016. Persistence of epiphytic lichens along a tephra-depth gradient produced by the 2011Puyehue-Cordón Caulle eruption in Parque Nacional Puyehue, Chile. Bosque 37: 97-105.
Pardo-De la Hoz, C. J., Magain, N., Goward, T. Lutzoni, F., Restrepo, S. & Miadlikowska, J. 2018. Contrasting symbiotic patterns in two sister lineages of trimembered lichens in the genus Peltigera. Frontiers in Microbiology 9: 2770.
Pearson, R. G., Raxworthy, C. J, Nakamura, M. & Peterson, A. T. 2006. Predicting species distributions from small numbers of occurrence records: a test case using cryptic geckos in Madagascar. Journal of Biogeography 34: 102-117.
Peterson, A. T., Soberón, J., Pearson, R. G., Anderson, R. P., Martinez-Meyer, E., Nakamura, M. & Araújo, M. B. 2011. Evaluating Model Performance and Significance. In: Ecological Niches and Geographic Distributions. Princeton, New Jersey: Monographs in Population Biology, 49. Princeton University Press.
Phillips, S. J. & Dudik, M. 2008. Modeling of species distributions with Maxent: new extensions and a comprehensive evaluation. Ecography 31: 161-175.
Phillips, S. J., Dudík, M. & Schapire, R. E. 2020. Maxent software for modeling species niches and distributions (Version 3.4.1). Available from url: http://biodiversityinformatics.amnh.org/open_source/maxent/. Accessed on 2020-3-26.
Phillips, S. J., Anderson, R. P., Dudík, M., Schapire, R. E. & Blair, M. E. 2017. Opening the black box: an open-source release of Maxent. Ecography 40: 887-893.
Phillips, S. J., Dudík, M., Elith, J., Graham, C. H., Lehmann, A., Leathwick, J. & Ferrier, S. 2009. Sample selection bias and presence-only distribution models: implications for background and pseudo-absence data. Ecological Applications 19: 181-197.
Quilhot, W., Cuellar, M., Diaz, R., Riquelme, F. & Rubio, C. 2012. Lichens of Aisen, Southern Chile. Gayana Botanica 69: 57-87.
Rambaut, A. 2012. FigTree v.1.4.3. Computer program distributed by the author, website: http://tree.bio.ed.ac.uk/software/figtree
Vitikainen, O. 1994. Taxonomic revision of Peltigera (lichenized Ascomycotina) in Europe. Acta Botanica Fennica 152: 1-96.
Vitikainen, O. 2002. Notes on Peltigera (Peltigeraceae) in southern South America and Antarctic region. Mitteilungen aus dem Insitut für Allgemeine Botanik in Hamburg 30-32: 297-303.
