Sempervivum
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FAUCONNETII  Reuter, 1861

Distribution : Jura Mountains.

Said to be a hybrid of Sempervivum arachnoideum x S. tectorum. Interestingly, one of the parents, namely S. arachnoideum, is not (or no longer) present in the area where it occurs. Chromosome counts (2n = 68) suggest that it is an allopolyploid and should therefore be treated nomenclaturally as a species, with no hybrid sign.




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