DOI: http://dx.doi.org/10.11646/phytotaxa.155.1.2
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The genus Dicksonia (Dicksoniaceae) in the western Pacific

Sarah Noben, Marcus Lehnert

Abstract


A revision of Dicksonia (Dicksoniaceae) in the western Pacific led to the recognition of five species. On New Caledonia, we recognize D. munzingeri and D. perriei as new to science, and the previously described D. baudouini and D. thyrsopteroides. Dicksonia baudouini is easily distinguished from the other species on the island by its persistent spreading hairs on petioles and frond axes. Dicksonia thyrsopteroides, D. munzingeri and D. perriei are mainly distinguished by the characteristics of their petioles but also by the extent of hemidimorphism and the persistence of dead fronds at the trunk. Dicksonia brackenridgei from Fiji, Vanuatu and Samoa matches D. thyrsopteroides in most morphological characters (e.g. hemidimorphism, morphology of fertile segments, petiole) but has similarities to D. baudouini (stalked pinnae, scabrous petioles and axes) as well. 


Keywords


Monilophytes; Ferns; Dicksoniaceae; Pacific;

References


Allan, H.H. (1961) Flora of New Zealand. Volume I. Government Printer, Wellington, 1085 pp.

Brownlie, G. (1969) Ptéridophytes, Flore de la Nouvelle-Calédonie et dépendances 3: 1–307 pp.

Brownlie, G. (1977) The pteridophyte flora of Fiji. J.Cramer (Vaduz Liechtenstein), 397 pp.

Christ, H. (1897) Die Farnkräuter der Erde. G. Fischer, Jena, 388 pp.

Cronk, Q.C.B. (2000) The endemic flora of St Helena. Anthony Nelson Ltd, 88 pp.

Fournier, E.P.N. (1873) Filices Novae-Caledoniae. Enumeratio monographica. Annales des Sciences Naturelles, Botanique V, 18: 253–360.

Heads, M. (2008). Panbiogeography of New Caledonia, south‐west Pacific: basal angiosperms on basement terranes, ultramafic endemics inherited from volcanic island arcs and old taxa endemic to young islands. Journal of Biogeography 35: 2153–2175.

http://dx.doi.org/10.1111/j.1365-2699.2008.01977.x

Holttum, R.E. (1963) Cyatheaceae. Flora Malesiana series II: 65–176.

Hooker, W.J. (1844) Species filicum I (2). William Pamplin, London, pp. 65–128.

Hooker, W.J. & Baker, J.G. (1874) Synopsis Filicum, 2 ed. R. Hardwicke, London, 559 pp.

Jones, D.L. (1998) Dicksoniaceae. Flora of Australia Volume 48: 187–191.

Keppel, G., Navuso, J.C., Naikatini, A., Thomas, N.T., Rounds, I.A., Osborne, T.A., Batinamu, E. & Senivasa, E. (2005) Botanical diversity at Savura, a lowland rain forest site along the PABITRA Gateway Transect, Viti Levu, Fiji. Pacific Science 59: 175–191.

Korall, P., Pryer, K.M., Metzgar, J.S., Schneider, H. & Conant, D.S. (2006) Tree ferns: monophyletic groups and their relationships as revealed by four protein-coding plastid loci. Molecular Phylogenetics and Evolution 39: 830–845.

Kramer, K.U.& Green, P.S., vol. eds. (1990) Pteridophytes and Gymnosperms . In: Kubitzki, K. (ed.). The Families and Genera of Vascular Plants, vol. 1. Springer-Verlag, Berlin, 635 pp.

Kunze, G. (1834) Thyrsopteris, eine neue Farngattung. Linnaea 9 : 506–508.

Lellinger, D.B. 1989. The ferns and fern-allies of Costa Rica, Panama, and the Choco. Part 1: Psilotaceae through Dicksoniaceae. Pteridologia 2: p.333–364.

Lellinger, D.B. (2002) A modern multilingual glossary for taxonomic pteridology. Pteridologia 3: 1–263.

Marticorena, C. & Rodríguez. R. (1995) Flora of Chile. Volume 1: Pteridophyta-Gymnospermae. Universidad de Concepción, pp.147–149.

Matsumoto, S., Iwashina, T., Sugimura, K., Hashimoto, T. & Nakamura, T. (1998) A list of pteridophytes herbarium specimens from Vanuatu, collected in 1996 and 1997. Annals of the Tsukuba Botanica Garden 17: 75–100.

Mettenius, G.H. (1861) Filices Novae Caledoniae. Annales des Sciences Naturelles, Botanique 4, 15: 55–91.

Mickel, J.T. & Beitel, J.M. (1988) Pteridophyte flora of Oaxaca, Mexico. Memoirs of the New York Botanical Garden 46: 1–568.

Moran, R.C., Churchill, S.P., Balslev, H., Forero, E. & Luteyn, J.L. (1995) The importance of mountains to pteridophytes, with emphasis on Neotropical montane forests. In Biodiversity and conservation of Neotropical montane forests. Proceedings of a symposium, New York Botanical Garden, 21–26 June 1993, pp. 359–363.

Pintaud, J. C., Jaffré, T. & Puig, H. (2001) Chorology of New Caledonian palms and possible evidence of Pleistocene rain forest refugia. Comptes Rendus de l'Académie des Sciences-Series III-Sciences de la Vie 324: 453–463.

Tryon, A.F. & Lugardon, B. (1991) Spores of the Pteridophyta: surface, wall structure, and diversity based on electron microscope studies. Springer-Verlag, pp. 230–232.

Tryon, R.M., & G.J. Gastony (1975) The biogeography of endemism in the Cyatheaceae. Fern Gazette 11: 73–79.

Whistler, W. A. (1998) A study of the rare plants of American Samoa. Report prepared for the US Fish and Wildlife Service, Honolulu 1, 18: 1–125.


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