Jovibarba globifera (L.) J. Parn. (Crassulaceae, Sempervivoideae) in Bratislava (Slovakia): notes on taxonomy, nomenclature, distribution, ecology and conservation status
1997
Letz, R. (Slovak Academy of Sciences, Bratislava (Slovakia). Inst. of Botany)
Evaluation of the name Jovibarba hirta subsp. glabrescens (Sabr.) Holub, which has usually been applied to the majority of the populations of the genus Jovibarba from Slovakia, shows that its basionym is based on plants from granite localities in Bratislava. The only recent locality of Jovibarba in Bratislava is on the rock slopes of the Bratislava Castle Hill, which represents an important refuge for the native flora just in the centre of the city. The population from this locality belongs to the variant intermediate between J. globifera subsp. globifera and J. globifera subsp. hirta, which also occurs on other localities in the lower altitudes of Slovakia (e.g. Maly Karpaty mountains), the Czech Republic (Pavlovske Vrchy hills) and NE Austria. The occurrence of such intermediate variants supports a wide species concept within the genus Jovibarba, where J. hirta and J. globifera (syn. J. sobolifera) are treated as two subspecies within J. globifera. These intermediate populations are provisionally classified as J. globifera, without indication of subspecific name. J. globifera belongs to the category V (vulnerable) on the Red List of Bratislava
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