Agardh D. muelleri M.E. Ramírez et A.F. Peters D. gayana Montagne subsp. patagonica (Asensi) comb. nov. A.F. Peters, E.C. Yang, F.C. Küpper & Prud’Homme van Reine subsp. tabacoides (Okamura) comb. nov. A.F. Peters, E.C. Yang, F.C. Küpper & Prud’Homme van Reine subsp. foliacea (V.A. Pease) comb. nov. A.F. Peters, E.C. Yang, F.C. Küpper & Prud’Homme van Reine subsp. sivertsenii (Baardseth) comb. nov. A.F. Peters, E.C. Yang, F.C. Küpper & Prud’Homme van Reine D. patagonica Asensi D. tabacoides Okamura D. foliacea V.A. Pease D. sivertsenii Baardseth subsp. firma (C. Agardh) comb. nov. A.F. Peters, E.C. Yang,

F.C. Küpper & Prud’Homme van Reine subsp. peruviana (Montagne) comb. nov. A.F. Peters, E.C. Yang, F.C. Küpper & Prud’Homme van Reine synonyms in subsp. herbacea: D. latissima Setchell & Gardner D. munda Setchell et N.L. Gardner D. mexicana E.Y. Dawson D. firma (C. Agardh) Skottsberg D. peruviana Alpelisib price Montagne Our isolates of D. ligulata from Brittany (France) and from Galicia (Spain) clustered together showing that European samples of this species are slightly genetically different from individuals from Argentina, Chile, New Zealand, and western Canada. Nevertheless, all together they form a highly supported clade, which represents

D. ligulata sensu stricto. However, samples belonging to three other taxa fell within the same clade: D. distans (C. Agardh) J. Agardh, D. muelleri M.E. Ramírez et A.F. Peters and D. gayana Montagne. The latter was not formally MG-132 ic50 included in our analysis because of

incomplete data; rbcL sequences place it close to D. muelleri, as did the previous analysis of ITS data (Peters et al. 1997). To accommodate these three taxa we propose to regard D. distans, which showed no genetic difference from a D. ligulata sample from Argentina, as a narrow growth form of D. ligulata. This classification would agree with the original treatment of this form (Sporochnus ligulatus var. distans; Agardh 1824). For D. muelleri and D. gayana, which show more significant morphological differences from D. ligulata (and from each other), we propose reduction to subspecific rank (see Table 4 and New Combinations section). Desmarestia ligulata [subsp. ligulata] f. distans (C. Agardh) comb. nov. A.F. Peters, E.C. Yang, F.C. Küpper, & Prud’Homme van Reine Basionym and early description: Sporochnus ligulatus medchemexpress var. distans C. Agardh (1824) in Systema Algarum p. 261. Desmarestia ligulata subsp. muelleri (M.E. Ramírez et A.F. Peters) comb. nov. A.F. Peters, E.C. Yang, F.C. Küpper, & Prud’Homme van Reine Basionym and early description: Desmarestia muelleri M.E. Ramírez et A.F. Peters (1993) in Canadian Journal of Botany 70: p. 2442, figs. 12, 15, 34, 42, 43. Desmarestia ligulata subsp. gayana (Montagne) comb. nov. A.F. Peters, E.C. Yang, F.C. Küpper, & Prud’Homme van Reine Basionym and early description: Desmarestia gayana Montagne (1852) in Flora Chileana, Plantas cellulares 2, Algas in Gay, C. (ed.) Historia fisica y politica de Chile 8: p. 243, pl. 14, fig.