Chamaecrista latistipula (Benth.) 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 : 193

3. Chamaecrista latistipula (Benth.) Rando , comb. nov.

Basionym:— Cassia latistipula Bentham (1870: 156) . Type: — BRAZIL. “ Ceara in locis humidis graminosis prope Riacho Fundo” [in reality the Riacho Fundo between Caetés (Serra da Piedade), Capanema e a Serra do Caraça, Minas Gerais], L. Riedel 570 (lectotype, designated by Irwin [1964]: LE00002339!; isolectotypes: K000642199!, MO). Figs 3C–D .

Chamaecrista desvauxii var. latistipula ( Bentham 1870: 156) G.P. Lewis (1987: 77)

Chamaecrista desvauxii var. glauca ( Hassler 1910: 129) H.S. Irwin & Barneby (1982: 867)

Cassia latistipula var. glauca Hassler (1910: 129)

Cassia arlindo-andradei Hoehne (1944: 16)

Chamaecrista latistipula ( Bentham 1870: 156) Afr. Fern. & E.P. Nunes (2005: 48) , nom. inval.

Notes:— In the taxonomic studies of C. sect. Xerocalyx ( sensu Irwin & Barneby 1982 ), Fernandes & Nunes (2005) propose that some varieties within the Chamaecrista desvauxii complex should be recognized at species level. Among these is Chamaecrista desvauxii var. latistipula , which represents the most widely distributed taxon in the group. Chamaecrista latistipula exhibits distinctive features, such as broad leaflets (20–46 mm long × 10–23 mm wide) and the largest stipules within the complex (15–26 mm long × 10–20 mm wide) ( Irwin & Barneby 1982). Both leaves and leaflets are usually glabrous, displaying bright green, blue-green, or glaucescent hues ( Irwin & Barneby 1982) ( Fig. 3C–D ). However, when Fernandes & Nunes (2005) made the species combination they failed to cite the page of the basionym in their reference, contrary to Article 41.5 of the International Code of Nomenclature ( Turland et al. 2018). Therefore, we propose here a new combination in compliance with the Botanical Nomenclature Code, following the species concept adopted by Bentham (1870) and Fernandes & Nunes (2005). The type material locality was verified using Urban’s itineraries ( Martius 1840). It was confirmed that Riedel never visited the state of Ceará, and based on Urban’s records, the locality mentioned in the type material corresponds to a specific region within the state of Minas Gerais. 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.