Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn., Syn. Mitteleur. Fl. 2(1): 325. 1900.

Testoni, Daniel & Linder, H. Peter, 2017, Synoptic taxonomy of Cortaderia Stapf (Danthonioideae, Poaceae), PhytoKeys 76, pp. 39-69 : 46

1. Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn., Syn. Mitteleur. Fl. 2(1): 325. 1900.

Arundo dioeca Spreng., Syst. Veg. (ed. 16) 1: 361. 1825 [1824], nom. illeg. (non Lour. 1790); Cortaderia dioeca (Spreng.) Speg., Anales Mus. Nac. Buenos Aires 7: 194. 1902; Arundo selloana Schult. & Schult. f., Mant. 3(1): 605. 1827; Gynerium argenteum Nees, Agrost. Bras. 462. 1829, nom. illeg.; Moorea argentea (Nees) Lemaire, Ill. Hort. 2: 14. 1855; Cortaderia argentea (Nees) Stapf, Gard. Chron. ser. 3, 22: 396. 1897, nom. illeg. Type. Uruguay. Montevideo, I-1836, F. Sellow 570 (lectotype, designated here: B 10 0185657! (http://ww2.bgbm.org/Herbarium/specimen.cfm?Barcode=B100185657); isolectotypes: BAA frag. ex B!, FR photo!).

Etymology.

selloana: In honour of Friedrich Sellow (1789-1831), German botanist, a major collector of Brazilian flora.

Nomenclatural comments.

Arundo dioeca Spreng. is a later homonym of Arundo dioica Lour. (1790) from Indochina, and is consequently illegitimate. Arundo selloana Schult. & Schult.f. is a new name for Arundo dioica Spreng.; Arundo dioeca Spreng. is cited in the protologue, and the diagnoses are identical. Furthermore, both description cite a Sellow collection, without number, from Montevideo. It is most likely that the type is Sellow 570 from Montevideo, which is in B, and is designated here as lectotype. Curiously, Conert (1961) proposed Sellow 396 from Brasilia as holotype of Arundo dioica , although Sprengel explicitly mentions that the type is from Monte Video. Gynerium argenteum Nees is also based on the same collection as Arundo dioica Spreng., plus some additional material. All three names are based on the same type.