2.9. 12. Schwannia Endl., Gen. Plan.: 1058. 1840

Figs 3 P, 8 W, 9 G, M

≡ Fimbriaria A. Juss., Fl. Bras. Merid. (quarto ed.) 3 (22): 63. 1833, nom. illeg., non Stackh. (1809), nec Nees ex Steud. (1824).

Type species.

Fimbriaria elegans A. Juss. [= Schwannia mediterranea (Vell.) R. F. Almeida & M. Pell.].

Notes.

Despite being the oldest available name for this genus, Fimbriaria A. Juss. is illegitimate for being a later homonym to Fimbriaria Stackh. ( Rhodomelaceae, Rhodophyta). This is unaffected by the posterior rejection of Fimbriaria Stackh. against Odonthalia Lyngbye . Furthermore, even if this rejection made “ Fimbriaria ” available as a generic name, Fimbriaria Nees ex Steud. ( Aytoniaceae, Marchantiophyta) still has priority over the Malpighiaceae name. Therefore, Schwannia is the earliest available name for this genus.

Schwannia comprises 14 currently accepted species (seven threatened species; Suppl. material 1) of shrubs or lianas endemic to rainforests, savannas, and seasonally dry tropical forests of Bolivia, Brazil, and Paraguay, South America (POWO 2024). For an identification key for all species of Schwannia, see Sebastiani (2010) and Sebastiani and Mamede (2014), both under Janusia .