TY - JOUR A1 - Snijman, Deirdre A. A1 - Kocyan, Alexander T1 - The genus Pauridia (Hypoxidaceae) amplified to include Hypoxis sect. Ianthe, Saniella and Spiloxene, with revised nomenclature and typification JF - Phytotaxa : a rapid international journal for accelerating the publication of botanical taxonomy N2 - Recent phylogenetic analyses show that the species of the southern African genera Pauridia, Saniella and Spiloxene and the Australian, Tasmanian and New Zealand Hypoxis sect. Ianthe form a highly supported, monophyletic clade. In keeping with earlier suggestions that these taxa doubtfully warrant separate status, and to avoid the recognition of Hypoxis and Spiloxene as paraphyletic, we expand the circumscription of Pauridia to include Saniella, Spiloxene and Hypoxis sect. Ianthe. As a result 33 new combinations at specific and infraspecific level are proposed and one epitype, two neotypes and 30 lectotypes are newly designated. Three basionyms, of which Linnaeus, Linnaeus filius and Lamarck are the authors, are also typified (Amaryllis capensis, Hypoxis aquatica, and Hypoxis pumila). KW - Hypoxidaceae KW - Hypoxis KW - new combination KW - Pauridia KW - Saniella KW - Spiloxene KW - taxonomy KW - typification Y1 - 2013 U6 - https://doi.org/10.11646/phytotaxa.116.1.2 SN - 1179-3155 VL - 116 IS - 1 SP - 19 EP - 33 PB - Magnolia Press CY - Auckland ER - TY - JOUR A1 - Kocyan, Alexander A1 - Snijman, Deirdre A. A1 - Forest, Felix A1 - Devey, Dion S. A1 - Freudenstein, John V. A1 - Wiland-Szymanska, Justyna A1 - Chase, Mark W. A1 - Rudall, Paula J. T1 - Molecular phylogenetics of Hypoxidaceae - Evidence from plastid DNA data and inferences on morphology and biogeography JF - Molecular phylogenetics and evolution N2 - Phylogenetic relationships of the monocot family Hypoxidaceae (Asparagales), which occurs mainly in the Southern Hemisphere, were reconstructed using four plastid DNA regions (rbcL, trnL intron, trnL-F intergenic spacer, and trnS-G intergenic spacer) for 56 ingroup taxa including all currently accepted genera and seven species of the closely related families Asteliaceae, Blandfordiaceae, and Lanariaceae. Data were analyzed by applying parsimony, maximum likelihood and Bayesian methods. The intergenic spacer trnS-G - only rarely used in monocot research - contributed a substantial number of potentially parsimony informative characters. Hypoxidaceae consist of three well-supported major clades, but their interrelationships remain unresolved. Our data indicate that in the Pauridia clade one long-distance dispersal event occurred from southern Africa to Australia. Long-distance dispersal scenarios may also be likely for the current distribution of Hypoxis, which occurs on four continents. In the Curculigo clade, the present distribution of Curculigo s.s. on four continents could support a Gondwanan origin, but the level of divergence is too low for this hypothesis to be likely. The main clades correspond well with some floral characters, habit and palynological data, whereas chromosomal data exhibit plasticity and probably result from polyploidization and subsequent dysploidy and/or aneuploidy. Evolutionary flexibility is also suggested by the number of reported pollination syndromes: melittophily, myophily, sapromyophily, and cantharophily. Based on our phylogenetic results, we suggest cautious nomenclatural reorganization to generate monophyly at the generic level. KW - Asparagales KW - Phylogenetics KW - Biogeography KW - Character evolution KW - Pollination syndromes KW - trnS-G spacer Y1 - 2011 U6 - https://doi.org/10.1016/j.ympev.2011.02.021 SN - 1055-7903 VL - 60 IS - 1 SP - 122 EP - 136 PB - Elsevier CY - San Diego ER -