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Many bryophytes grow in the Tropics in periodically inundated habitats such as river beds, marshes and waterfalls, but permanently submerged bryophytes are rare and are mainly found in high-altitude lakes. Their identification can be difficult due to modification of morphological traits induced by the aquatic environment. Here we deal with a submerged population of the liverwort genus Herbertus from a glacial lake at 4120 m the Sierra Nevada del Cocuy, Colombia. The aquatic plants, which stand out by dwarf statue and obtuse leaf tips, had been identified as H. oblongifolius, a rare taxon described from Brazil and recently placed in synonymy of the widespread and variable H. sendtneri based on morphology. Molecular analysis confirmed that the aquatic plants belong to H. sendtneri. The resemblance of the aquatic plants to small branches of H. sendtneri suggests that they might represent a juvenile phenotype. The aquatic plants probably originated from a rock-inhabiting population, which dispersed into the lake by means of vegetative reproduction via caducous branches or became washed into the lake. The dispersal event should have occurred during the last 12.000-21.000 years when the lake was ice-free. © 2018. Acad. Colomb. Cienc. Ex. Fis. Nat.References
Bartlett, J.K. & Vitt, D.H. (1986). A survey of the species in the genus Blindia (Bryopsida, Seligeriaceae). New Zealand Journal of Botany, 24: 203-246.
Brönmark, C. & Hansson, L.A. (2017). The Biology of Lakes and Ponds, 2nd ed. Oxford: Oxford University Press.
Churchill, S.P. (2016). Bryophyta. In: Bernal, R., Gradstein, S.R. & Celis, M. (eds.). Catálogo de plantas y líquenes de Colombia (pp. 353-442). Bogotá: Universidad Nacional de Colombia. Churchill, S.P. (2018). Andean Bryophytes. www.tropicos.org/Project/ANBRY
Cleef, A.M. (1981). The vegetation of the páramos of the Colombian Cordillera Oriental. Dissertationes Botanicae, 61: 1-320.
Crandall-Stotler, B.J. & Gradstein, S.R. (2017). A new riverine species of the genus Fossombronia (Pelliales, Fossombroniaceae) from Ecuador. Bryophyte Diversity and Evolution, 39: 94-101.
Darriba, D., Taboada, G.L., Doallo, R., Posada, D. (2012). jModelTest 2: more models, new heuristics and parallel computing. Nature Methods, 9: 772.
de Winton, M.D. & Beever, J.E. (2004). Deep-water bryophyte records from New Zealand lakes. New Zealand Journal of Marine and Freshwater Research, 38: 329-340.
Feldberg, K., Groth, H., Wilson, R., Schäfer-Verwimp, A., Heinrichs, J. (2004). Cryptic speciation in Herbertus (Herbertaceae, Jungermanniopsida): Range and morphology of Herbertus sendtneri inferred from nrITS sequences. Plant Systematics and Evolution, 249: 247-261.
Feldberg, K. & Heinrichs, J. (2005). Some new synonyms of Herbertus sendtneri (Nees) Lindb. from the Neotropics. Cryptogamie, Bryologie, 26: 411-416.
Feldberg, K. & Heinrichs, J. (2006). A taxonomic revision of Herbertus in the Neotropics based on nuclear and chloroplast DNA and morphology. Botanical Journal of the Linnean Society, 151: 309-332.
Glime, J. & Vitt, D.H. (1984). The physiological adaptations of aquatic Musci. Lindbergia, 10: 41-52.
Gouy, M., Guindon, S., Gascuel, O. (2010). SeaView version 4: a multiplatform graphical user interface for sequence alignment and phylogenetic tree building. Molecular Biology and Evolution, 27: 221-224.
Gradstein, S.R. & Costa, D.P. (2003). The liverworts and hornworts of Brazil. Memoirs of the New York Botanical Garden, 87: 1-317.
Gradstein, S.R. & Reiner-Drehwald, M.E. (2007). On the status of Neopotamolejeunea E.Reiner (Lejeuneaceae), with description of a new species. Systematic Botany, 32: 487-492.
Gradstein, S.R. & Váňa, J. (1999). On the taxonomy of Kymatocalyx and Stenorrhipis (Cephaloziellaceae). Haussknechtia Beiheft, 9: 155-170.
Gradstein, S.R., Churchill, S.P., Salazar Allen, N. (2001). Guide to the Bryophytes of Tropical America. Memoirs of the New York Botanical Garden, 86: 1-577.
Gradstein, S.R., Cleef, A.M., Fulford, M.H. (1977). Oil body structure and ecological distribution of selected species of Andean Jungermanniales. Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen C, 80: 377-420.
Gradstein, S.R., Ilkiu-Borges, A.-L., Vanderpoorten, A. (2011). Habitat specialization triggers the evolution of unusual morphologies: the case of Cololejeunea stotleriana sp. nov. from Ecuador. The Bryologist, 114: 9-22.
Gradstein, S.R., Reiner-Drehwald, M.E., Jost, L. (2004). The systematic position and distribution of Myriocolea irrorata (Lejeuneaceae, Hepaticae), an endangered liverwort from the Ecuadorian Andes. Journal of the Hattori Botanical Laboratory, 93: 235-248.
Griffin, D., Gradstein, S.R., Aguirre, J. (1982). On a new antipodal element in the Neotropical paramos: Dendrocryphaea latifolia sp. nov. Acta Botanica Neerlandica, 3l: 175-184.
He, X.L. & Sun, Y. (2017). Rare sporophyte found in Europe for Herbertus sendtneri with a range expansion to Africa and Malaysia. Phytotaxa, 324: 42-50.
Hedenäs, L. (2003). Amblystegiaceae. Flora Neotropica Monograph, 89: 1-107.
Hill, M., Preston, C.D., Smith, A.J.E. (1991). Atlas of the Bryophytes of Britain and Ireland. Vol. 1: Liverworts. Colchester: Harley Books.
Ignatov, M. & Kurbatova, B. (1990). A review of deep-water bryophytes with records from USSR. Hikobia, 10: 393-401.
Mägdefrau, K. (1973). Hydropogon fontinaloides (Hook.) Brid., ein periodisch hydro-aerophytisches Laubmoos des Orinoco und Amazonas. Herzogia, 3: 141-149.
Meinigunger, L. & Köckinger, H. (2002). Herbertus sendtneri (Nees) Lindb. – neue Einzelheiten zum historischen Fund im Thüringer Wald und Bemerkungen zur Variabilität der Art. Limprichtia, 20: 31-46.
Paton, J.A. (1999). The Liverwort Flora of the British Isles. Colchester: Harley Books.
Rankin, A.H., Pressel, S., Duckett, J., Rimington, W.H., Hawes, I., Sumners, D.Y., Mackey, T.J., Castendyke, D., Schneider, H., Jungblut, A.D. (2017). Characterisation of a deep-water moss from the perennially ice-covered Lake Vanda, Antarctica. Polar Biology. DOI 10.1007/s00300-017-2127-y
Reiner-Drehwald. E. (1999). On Potamolejeunea polyantha (Mont.) E.Reiner & Goda comb. nov. (Lejeuneaceae), a poorly known rheophytic liverwort from South America. Haussknechtia Beiheft, 9: 299-306.
Shevock, J., Wen-Shang, M.Z., Akiyama, H. (2017). Diversity of the rheophytic condition in bryophytes: field observations from multiple continents. Bryophyte Diversity and Evolution, 39: 75-93.
van Reenen, G.B.A. (1982). Studies on Colombian Cryptogams XII. High Andean species of Herbertus S. F. Gray (Hepaticae). Lindbergia, 8: 110-120.
van der Hammen, T., Barelds, J., de Jong, H., de Veer, A.A. (1981). Glacial sequence and environmental history in the Sierra Nevada del Cocuy (Colombia). Paleogeography, Paleoclimatology, Paleoecology, 32: 247-340.
Vanderpoorten, A. & Goffinet, B. (2009). Introduction to Bryophytes. Cambridge: Cambridge University Press.
Wagner, D.H., Christy, J.A., Larson, D.W. (2000). Deep-water bryophytes from Waldo Lake, Oregon. Lake and Reservoir Management, 16: 91-99.
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