Browsing by Author "Manning, John C."

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    Felicia douglasii (Asteraceae-Astereae), a distinctive new species from the Cape Floristic Region, South Africa
    (Elsevier, 2017) Manning, John C.; Magee, Anthony R.; Boatwright, James S.
    Felicia Cass. (Asteraceae) is the largest of the African members of tribe Astereae, and comprises ±90 species from southern and tropical Africa to Arabia. As currently circumscribed, it is rather weakly diagnosed by the herbaceous or shrubby habit, mostly radiate capitula with epaleate receptacle, ± concolorous rays, mostly bisexual disc florets, and eglandular cypselas with several scabrid or barbellate pappus bristles (Grau, 1973; Herman et al., 2000; Manning and Goldblatt, 2012).
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    Lasiosiphon rigidus, a new species from the Tankwa Karoo and two new combinations in the genus for South Africa
    (MDPI, 2013) Manning, John C.; Boatwright, James S.
    Thymelaeaceae are well represented in southern Africa, with ± 190 species in nine genera (Bredenkamp & Beyers 2000; Beaumont et al. 2009). Preliminary phylogenetic analyses of nuclear and plastid DNA sequences (Van der Bank et al. 2002; Beaumont et al. 2009) indicate the need for substantial revision in the generic circumscriptions in subfamily Thymelaeoideae.
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    Molecular and morphological analysis of subfamily Alooideae (Asphodelaceae) and the inclusion of Chortolirion in Aloe
    (Botanischer Garten und Botanisches Museum, 2013) Daru, Barnabas H.; Manning, John C.; Boatwright, James S.; Maurin, Olivier; Maclean, Norman; Schaefer, Hanno; Kuzmina, Maria; van der Bank, Michelle
    Asphodelaceae subfam. Alooideae (Asparagales) currently comprises five genera, four of which are endemic to southern Africa. Despite their importance in commercial horticulture the evolutionary relationships among the genera are still incompletely understood. This study examines phylogenetic relationships in the subfamily using an expanded molecular sequence dataset from three plastid regions (matK, rbcLa, trnH-psbA) and the first subunit of the nuclear ribosomal internal transcribed spacer (ITS1). Sequence data were analysed using maximum parsimony and Bayesian statistics, and selected morphological traits were mapped onto the molecular phylogeny. Haworthia is confirmed as being polyphyletic, comprising three main clades that largely correlate with current subgeneric circumscriptions. Astroloba and Gasteria are evidently each monophyletic and sister respectively to Astroloba and H. subg. Robustipedunculares. Chortolirion is shown to be deeply nested within Aloe and is formally included in that genus. Aloe itself is clearly polyphyletic, with the dwarf species A. aristata allied to Haworthia subg. Robustipedunculares. The taxonomic implications of these findings are examined but branch support at critical lower nodes is insufficient at this stage to justify implementing major taxonomic changes.
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    Othonna koos-bekkeri Van Jaarsv. is a synonym of Othonna cerarioides Magoswana & J.C.Manning (Asteraceae: Othonninae)
    (AOSIS (pty) Ltd, 2021-10-18) Magoswani, Simon L.; Boatright, Steven J.; Magee, Anthony R.; Manning, John C.
    Othonna koos-bekkeri Van Jaarsv. is recognised as a synonym of O. cerarioides Magoswana & J.C.Manning. Copyright: © 2021. The Authors
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    Two new species of Trachyandra sect. Liriothamnus (Xanthorrhoeaceae, Asphodeloideae) from the Western and Eastern Cape Provinces of South Africa
    (2013) Boatwright, James S.; Manning, John C.
    Trachyandra eriocarpa and T. bulbosa are two new species from Northern and Eastern Cape Provinces of South Africa. They are placed in T. sect. Liriothamnus based on their wiry roots, the cataphylls not forming membranous collars, and the remains of the outer leaves forming a fibrous collar. Trachyandra eriocarpa from the Great Winterberg in Eastern Cape is recognised by its unusual, villous ovary and capsules; and T. bulbosa from north of Springbok in Northern Cape by the irregular, bulbous rhizome, microscopically puberulous leaves and maculate tepals.