Tres tàxons endèmics del gènere Spergula (Caryophyllaceae) del nord d’Àfrica, dos d’ells llargament ignorats

Abstract

Es proposen dues noves combinacions nomenclaturals dins el gènere Spergula (Caryophyllaceae): Spergula tibestica (Quézel et Monnier) Lebrun ex Romo et Pyke, un taxon endèmic del massís de Tibesti (Txad), i Spergula oreophila (Litard. et Maire) Romo et Pyke, endèmic de la serralada de l’Alt Atles (Marroc). Es comparen aquest dos tàxons amb el tàxon proper Spergula fontenellei Maire, endemisme dels massissos del Hoggar, Teffedest i Tassili-n-Ajjer (Algèria).

Combinations in the genus Spergula (Caryophyllaceae): three taxa endemic to northern Africa, two of them largely overlooked. Taking into account their morphology and chorology, two new combinations in the genus Spergula (Caryophyllaceae) are proposed. Spergula tibestica (Quézel et Monnier) Lebrun ex Romo et Pyke, for a taxon endemic to the Tibesti massif (Chad) and Spergula oreophila (Litard. et Maire) Romo et Pyke, endemic to the High Atlas range (Morocco). A comparison between them with the close relative Spergula fontenellei Maire, endemic to Hoggar, Teffedest and Tassili-n-Ajjer massifs (Algeria) is provided.