Open Access Open Access  Restricted Access Subscription or Fee Access


DOI: http://dx.doi.org/10.11646/phytotaxa.181.4.4

On the disintegration of Molluginaceae: a new genus and family (Kewa, Kewaceae) segregated from Hypertelis, and placement of Macarthuria in Macarthuriaceae

Maarten J.M. Christenhusz, Samuel F. Brockington, Pascal-Antoine Christin, Rowan F. Sage

Abstract


Molecular studies have shown that Molluginaceae in the traditional sense is polyphyletic. Several genera have already been separated into various families (e.g. Caryophyllaceae, Limeaceae, Lophiocarpaceae, Microteaceae), but recent studies have shown that Macarthuria and Hypertelis also make Molluginaceae polyphyletic if they remain to be included in this family. Hypertelis is biphyletic, with its type species found to belong to Molluginaceae sensu stricto, but the remainder of the genus is to be placed elsewhere. Therefore a new genus, Kewa, is proposed for the rest of Hypertelis, and two new family names are coined: Kewaceae and Macarthuriaceae, which are here morphologically characterized.


Keywords


Australia, Madagascar, new family, new genus, Saint Helena, South Africa

Full Text:

PDF/A (527.32 KB)

References


Adamson, R.S. (1958) The South African species of Aizoaceae, IV. Mollugo, Pharnaceum, Coelanthum and Hypertelis. Journal of South African Botany 24: 11–66.

Adamson, R.S., Gerstner, J. & Salter, T.M. (1946) Plantae Novae Africanae, series XXV. Journal of South African Botany 12: 35–42.

APG III (2009) An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III. Botanical Journal of the Linnean Society 161: 105–121.

http://dx.doi.org/10.1111/j.1095-8339.2009.00996.x

Arakaki, M., Christin, P.A., Nyffeler, R., Lendel, A., Eggli, U., Ogburn, R.M., Spriggs, E., Moore, M.J. & Edwards, E.J. (2011) Contemporaneous and recent radiations of the world’s major succulent plant lineages. Proceedings of the National Academy of Sciences USA 108: 8379–8384.

http://dx.doi.org/10.1073/pnas.1100628108

Baker, J.G. (1884) Contributions to the flora of Madagascar—part I. Polypetalae. Journal of the Linnean Society, Botany 20: 87–159.

Brockington, S.F., Walker, R.H., Glover, B., Soltis, P.S. & Soltis, D.E. (2011) Complex pigment evolution in the Caryophyllales. New Phytologist 190: 854–864.

http://dx.doi.org/10.1111/j.1469-8137.2011.03687.x

Burchell, W.J. (1822) Travels in the interior of southern Africa vol. 1. Longman, London, 582 pp.

Christin, P.-A., Sage, T.L., Edwards, E.J., Ogburn, R.M., Khoshravesh, R. & Sage, R.F. (2011) Complex evolutionary transitions and the significance of C3-C4 intermediate forms of photosynthesis in Molluginaceae. Evolution 65: 643–660.

http://dx.doi.org/10.1111/j.1558-5646.2010.01168.x

Cuenoud, P., Savolainen, V., Chatrou, L.W., Powell, M., Grayer, R.J. & Chase, M.W. (2002) Molecular phylogenetics of Caryophyllales based on nuclear 18S rDNA and plastid rbcL, atpB, and matK DNA sequences. American Journal of Botany 89: 132–144.

http://dx.doi.org/10.3732/ajb.89.1.132

Ecklon, C.F. & Zeyher, C.L. (1836) Enumeratio Plantarum Africae Australis Extratropicae vol. 2. Hamburg, 145–288 pp.

Endlicher, S.F.L. (1837) Enumeratio plantarum quas in Novae Hollandiae ora austro-occidentali ad fluvium Cygnorum et in sinu Regis Georgii collegit Carolus Liber Baro de Hügel. Beck, Vienna, 83 pp.

Endress, M.E. & Bittrich, V. (1993) Molluginaceae. In: Kubitzki, K. (Ed.) The families and genera of vascular plants vol. 2. Springer-Verlag, Heidelberg, pp. 419–426.

Fenzl, E. (1836) Monographie der Mollugineen und Steudelieen zweier Unterabtheilungen der Familie der Portulaceen (nebst einem Zusätze zur Abhandlung über Acanthophyllum). Annalen des Wiener Museums der Naturgeschichte 1: 337–384.

Fenzl, E. (1839) Monographie der Mollugineen (zweiter Artikel). Annalen des Wiener Museums der Naturgeschichte 2: 243–307.

Friedrich, H.C. (1955) Beiträge zur Kenntnis einiger Familien der Centrospermae. Mitteilungen der Botanischen Staatssammlung München 2(12): 56–66.

Gandoger, M. (1912) Manipulus plantarum novarum præcipue Americæ australioris. Bulletin de la Société Botanique de France 59: 704–810.

Harvey, W.H. & Sonder, O.W. (1860) Flora Capensis, being a systematic description of the plants of the Cape Colony, Caffraria, & Port Natal vol. 1. Hodges, Smith & Co, Dublin, 546 pp.

Hooker, J.D. (1868) Pharnaceum acidum Hook. f. Hooker’s Icones plantarum; or, figures, with brief descriptive characters and remarks, of new or rare plants, selected from the Kew herbarium 11: 26.

Linnaeus, C. (1753) Species plantarum vol. 1. Salvius, Stockholm, 560 pp.

Linnaeus, C. (1759) Systema naturae, ed. 10, vol. 2. Salvius, Stockholm, 825–1384 pp.

Müller, K. (1908) Beiträge zur Systematik der Aizoaceen. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 42(Beiblatt 97, Heft 2–3): 54–94.

Philips, E.P. (1951) The genera of South African flowering plants, ed. 2. Cape Times, Cape Town, 923 pp.

Schäferhoff, B., Müller, K. & Borsch, T. (2009) Caryophyllales phylogenetics: disentangling Phytolaccaceae and Molluginaceae and the description of Microteaceae as a new isolated family. Willdenowia 39: 209–228.

Swartz, O. (1788) Nova genera & species plantarum. Sweder, Stockholm, 152 pp.

Scopoli, J.A. (1777) Introductio ad historiam naturalem. Gerle, Prague, 506 pp.


Refbacks

  • There are currently no refbacks.


ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand