BASSO, Daniela, Annalisa CARAGNANO, Line LE GALL & Graziella RODONDI 2015 (online May 21) The genus Lithophyllum in the north-western Indian Ocean, with description of L. yemenense sp. nov., L. socotraense sp. nov., L. subplicatum comb. et stat. nov., and the resumed L. affine, L. kaiseri, and L. subreduncum (Rhodophyta, Corallinales) Phytotaxa 208(3): 183-200, 13 figs. 3 tables