Karyological analysis reveals two new polyploid marguerite taxa (Leucanthemum, Compositae–Anthemideae) in S France and NW Italy

• Robert Vogt ^[3] ; Kamil Konowalik ^[1] ; Christoph Oberprieler ^[2]
  1. [1] Wroclaw University of Environmental and Life Sciences

     Wroclaw University of Environmental and Life Sciences

     Breslavia, Polonia

     
  2. [2] University of Regensburg

     University of Regensburg

     Kreisfreie Stadt Regensburg, Alemania

     
  3. [3] Botanic Garden and Botanical Museum Berlin, Freie Universität Berlin, Germany,

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• Localización: Willdenowia: Annals of the Botanic Garden and Botanical Museum Berlin-Dahlem, ISSN 0511-9618, ISSN-e 1868-6397, Vol. 48, Nº. 2, 2018, págs. 221-226
• Idioma: inglés
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• Resumen

  • New chromosome counts suggest that the former Leucanthemum vulgare var. esterellense Briq. & Cavill. deserves acknowledgement as an independent species. The new combination L. esterellense (Briq. & Cavill) Vogt, Konowalik & Oberpr., proposed here, denotes a marguerite species endemic to the Massif de l'Esterel (S France) with an octoploid chromosome number of 2n = 72. It is also demonstrated that recently formed hybrids between L. glaucophyllum and L. pallens at Mt Bignone (Liguria, NW Italy) exhibit hepta- and octoploid chromosome numbers. These hybrids are described as L. ×marchii Konowalik, Vogt & Oberpr., a nothospecies new to science. Additionally, the names L. subglaucum de Laramb., L. vulgare var. esterellense Briq. & Cavill. and L. vulgare subsp. glaucophyllum Briq. & Cavill. are lectotypified and new chromosome counts for all presently surveyed Leucanthemum taxa are provided.