Chamaecrista curvifolia (Vogel) Rando, 2025

Bastos, Maria Da Conceição De Carvalho, Marinho, Lucas Cardoso, Fernandes, Rozijane Santos, Zappi, Daniela Cristina, Silva, Tatiane Santana & Rando, Juliana Gastaldello, 2025, Nomenclatural and taxonomic adjustments in Chamaecrista (Leguminosae: Caesalpinioideae) from the Brazilian Cerrado, Phytotaxa 702 (2), pp. 187-196 : 191-192

2. Chamaecrista curvifolia (Vogel) Rando , comb. nov.

Basionym:— Cassia curvifolia Vogel (1837: 55) . Type: — BRAZIL. “ Goyas [Goiás], Cavalcante, Burchell 7690” (neotype, designated by Irwin & Barneby [1982]: K!; isoneotype GH!). Fig. 3A–B .

Chamaecrista ramosa var. curvifolia ( Vogel 1837: 55) G.P. Lewis (1987: 84)

Chamaecrista ramosa var. mollissima ( Bentham 1870: 160) H.S. Irwin & Barneby (1982: 890)

Chamaecrista ramosa var. lucida ( Bentham 1870: 160) H.S. Irwin & Barneby (1982: 888)

Chamaecrista curvifolia ( Vogel 1837: 55) Afr. Fern. & E.P. Nunes (2005: 55) , nom. inval.

Chamaecrista curvifolia var. lucida ( Vogel 1837: 55) Afr. Fer. & E.P. Nunes, (2005: 56) , nom. inval.

Chamaecrista curvifolia var. mollissima (Vogel 1870: 160) Afr. Fer. & E.P. Nunes (2005: 57) , nom. inval.

Notes:— In their taxonomic studies of C. sect. Xerocalyx ( sensu Irwin & Barneby 1982 ), Fernandes & Nunes (2005) proposed that some varieties within the Chamaecrista ramosa complex should be elevated to species rank. Among these is Chamaecrista ramosa var. curvifolia , characterized by its distinctly small leaflets and prominently curved venation. However, when making the species combination, the authors failed to cite in their reference the page number where the basionym is described, contrary to Article 41.5 of the ICN ( Turland et al. 2018). Therefore, we propose here a new combination following the species concept adopted by Fernandes & Nunes (2005). Here we also include C. ramosa var. lucida within the circumscription of C. curvifolia , due to the former having leaflets with curved venation. However, the leaflets of C. ramosa var. lucida are slightly larger than those of C. ramosa var. curvifolia ( C. ramosa var. curvifolia : 2.5–7.5 mm; C. ramosa var. lucida : 9–17 mm) (H.S. Irwin & Barneby 1982). For further information on the species, including its description, morphology, images and distribution, see Fernandes & Nunes (2005) and Rando et al. (2020).

Figures

FIGURE 3. A–B. Chamaecrista curvifolia. A. Habit. B. Branch with leaves and flowers. C–D. Chamaecrista latistipula. C. Habit. D. Branch with leaves and flowers. E–G. Chamaecrista malacophylla. E. Branch with leaves and flower. F. Flower in front view. G. Branch with leaves and flower. Photos A–C by M. Simon & H. Moreira; D by M. Simon; E–G by J.G. Rando.