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  • 1.
    Julia, Ferm
    et al.
    Naturhistoriska riksmuseet, Enheten för botanik.
    Sylvain, Razafimandimbison
    Naturhistoriska riksmuseet, Enheten för botanik.
    Paracarphalea, a new genus of the coffee family segregated from the Malagasy endemic genus Carphalea (Rubiaceae, Rubioideae, Knoxieae)2016Ingår i: Phytotaxa, Vol. 263, nr 2, s. 98-112Artikel i tidskrift (Refereegranskat)
  • 2.
    Kainulainen, Kent
    et al.
    1University of Michigan Herbarium and EEB Department, 3600 Varsity Drive, Ann Arbor, Michigan, 48108, USA.
    Razafimandimbison, Sylvain
    Naturhistoriska riksmuseet, Enheten för botanik.
    New taxonomic combinations in West Indian Ocean Vanguerieae (Rubiaceae)2016Ingår i: Phytotaxa, ISSN ISSN 1179-3155, Vol. 282, nr 4, s. 267-272Artikel i tidskrift (Refereegranskat)
  • 3.
    Nylinder, Stephan
    et al.
    Naturhistoriska riksmuseet, Enheten för botanik.
    Razafimandimbison, Sylvain
    Naturhistoriska riksmuseet, Enheten för botanik.
    Anderberg, Arne Alfred
    Naturhistoriska riksmuseet, Enheten för botanik.
    From Namib around the world: biogeography of the Inuleae-Plucheinae (Asteraceae)2016Ingår i: Journal of Biogeography, ISSN 0305-0270, E-ISSN 1365-2699, Vol. 43, s. 1705-1716Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We investigated the historical biogeography of the Inuleae–Plucheinae (Asteraceae), a group of arid-adapted plants with partly unresolved generic circumscriptions, in order to understand its origin and spatiotemporal evolutionary history in relation to the Cenozoic climate shifts. Location Global, with highest species diversity in the Southern Hemisphere. The spatiotemporal biogeography of the Plucheinae was estimated by both a discrete method using a set of general distribution areas, and a relaxed random walk based on extant species distributions. The topology was time calibrated using a combination of secondary node ages and secondary derived rates for included loci. Our results indicate the median age of the Plucheinae to be approximately 15.4 Ma. The biogeographical analyses infer an ancestral origin in southern Africa, with the relaxed random walk analysis narrowing the uncertainty down to an area reaching from coastal Namibia to the western Kalahari. Africa was colonized in a (south)western–(north)eastern direction following the spread of arid habitats. Ancestral representatives of the Plucheinae colonized South America on at least three separate occasions (13.0–4.0, 4.3–3.1 and 4.1–3.7 Ma), with one subsequent spread to North America. Australia was colonized three times between 3.6 and 0.4 Ma. Madagascar and the Mascarenes were colonized at least seven times. The origin of the Plucheinae is estimated to the Namib region, with early speciations and radiations concurring with the timing of aridification of southern Africa, following the increase in strength of the Antarctic Circumpolar Current and subsequent formation of the Benguela Upwelling at c. 11.8 Ma. The current biogeographical distribution of the Plucheinae is best explained by several Neogene long-distance dispersal events from tropical Africa.

  • 4.
    Thulin, Mats
    et al.
    Systematic Biology, Department of Organismal Biology, EBC, Uppsala University, Norbyvägen 18D, SE-752 36 Uppsala, Sweden.
    Razafimandimbison, Sylvain
    Naturhistoriska riksmuseet, Enheten för botanik.
    Ormocarpopsis anosyana Thulin & Razafim. (Fabaceae), a new species from southern Madagascar and its phylogenetic position2016Ingår i: Candollea, ISSN 0373-2967, Vol. 71, nr 2, s. 281-286Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Ormocarpopsis anosyana Thulin & Razafim. (Fabaceae), a new species from the Anosy Region of south-eastern Madagascar, is described and illustrated. According to phylogenetic analyses based on nuclear ribosomal ITS sequences, the new species is, with strong support, sister to Ormocarpopsis mandrarensis Dumaz-le-Grand, another species confined to southeastern Madagascar. Ormocarpopsis anosyana differs markedly from Ormocarpopsis mandrarensis by its generally smaller leaflets with the secondary and tertiary venation drying more or less blackish beneath, by its shorter hypanthium, by its smaller calyx with the lowest tooth about as long as the others, by its wing-petals that are much longer than the keel, by its glabrous ovary, and by its slightly articulated fruits. Ormocarpopsis anosyana is known only from two collections from a single patch of spiny dry forest east of Imonty. It is assigned a preliminary conservation status as “Endangered”.

  • 5.
    Xu, Dong-Xian
    et al.
    College of Life Sciences, Beijing Normal University, Beijing 100875, People’s Republic of China.
    Razafimandimbison, Sylvain
    Naturhistoriska riksmuseet, Enheten för botanik.
    Mycetia griffithii, a new name for Mycetia angustifolia (Hook.f.) Razafim. & B.Bremer (Rubiaceae)2016Ingår i: Phytotaxa, ISSN 1179-3155, Vol. 252, nr 3, s. 231-232Artikel i tidskrift (Refereegranskat)
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