Sagina diffusa (Hook.f.) Timaná, comb. nov. (Caryophyllaceae), a new combination for the flora of île St. Paul (Southern Indian Ocean), with some historical notes

A new combination, Sagina diffusa (Hook.f.) Timaná, comb. nov., Caryophyllaceae, from the Île St. Paul (Terres Australes et Antarctiques Françaises) is proposed to replace Colobanthus diffusus Hook.f. Sagina diffusa, comb. nov. is characterized by an upright pedicel and appressed sepals during and after capsule development. A historical account of putative type specimens is presented.