Zornia curvata Mohlenbr., Webbia

Zeferino, Laís Couto, Lewis, Gwilym Peter, Pezzini, Flávia Fonseca & Fortuna-Perez, Ana Paula, 2025, A taxonomic synopsis of the genus Zornia J. F. Gmel. (Leguminosae: Papilionoideae) for the Neotropics, Acta Botanica Brasilica (e 20240197) 39, pp. 1-37 : 14

Zornia curvata Mohlenbr., Webbia 16(1): 132, figs. 62, 91. 1961.

Fig. S5

Type: VENEZUELA. Cotiza: near Caracas, 8 July 1917, H. F. Pittier 7241 (holotype US–00001997 !) .

Zornia gavilanesii Brandão & Sousa Costa, Daphne 1(1): 5. 1990. Type: BRAZIL. Minas Gerais: Pouso Alegre , 5 November 1984, M. Brand ã o10923 (holotype RB–312785!; isotype PAMG–55121!).

Zornia amaralaensis Brandão, Daphne 4(3): 5. 1994. Type: BRAZIL. Minas Gerais: Carneirinhos , 7 May 1975, M. Brandão 906 (holotype PAMG–10275!).

Shrub to ca. 60 cm tall. Stems prostrate, branched, glabrous. Leaves with 2 leaflets, petiolate. Leaflets 7–35 × 7–15 mm, ovate to lanceolate, glabrous. Stipules ovate to lanceolate, 5–7 veined. Inflorescences spiciform, axillary, 30 cm long. Bracteoles 6–9 × 2–5 mm, elliptic, 5–7 veined, punctate, glabrous, green. Loment with 4–8 articles; articles 1.5–2 × 2 mm, reticulate-veined, bristle-like trichomes 1 mm long.

Distribution and habitat: Argentina, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guatemala, Guyana, Martinique, Mexico, Nicaragua, Panama, Paraguay, Porto Rico, Peru, Suriname, Uruguay, United States, Venezuela. Zornia curvata is typically found thriving in grassy fields and rocky or stony soils. This species can be found within Tropical Dry Forest, Savannas, and Tropical Moist Forest.

Conservation Status: Least Concern (LC). The species has a large geographical range (22,087,307.508 km ²) and has a considerable AOO of 816.000 km ².

Notes: Zornia curvata is readily identified by its ovate to obovate leaflets and elliptic bracteoles. The fruits are reticulate-veined, with articles up to 2 mm long and bristle-like trichomes 1 mm long.

Representative specimens examined: ARGENTINA. Corrientes: Estância Santa Teresa, Beron de Estrada , 7 December 1945, T. Subarrola 3840 (NY). BOLIVIA. s.loc., 5 February 1928, C. Troll 1159 (M). BRAZIL. Bahia: Icatu, 12 March 2007, A.P.Fortuna-Perez et al. 138 (UEC); Distrito Federal: Sobradinho , 8 November 1965, H.S. Irwin et al. 10080 (NY); Espírito Santo: Vila Velha , 29 August 1987, L. Coradin 8346 (UEC); Goiás: Alto Paraíso de Goiás, 10 October 1979, E.P. Heringer et al. 2359 (K); Minas Gerais: Joaquim Felicio , 2 November 2022, L.C. Zeferino et al. 100 (BOTU); Mato Grosso do Sul: Dourados, 12 November 1982, G. Hatschbach 45937 (K); Pará: Ilha do Mosqueiro , 5 August 1974, A. Lasseigne 4375 (US); Paraíba: Areia , 10 July 1953, J.C. Moraes 743 (NY); Paraná: Guarapuava , 15 December 1965, Reitz & Klein 17719 (NY); Pernambuco: Arcoverde , 22 July 1987, L. Coradin et al.7699 (CEN); Rio Grande do Sul: s.loc., s.d, Riedel 595 (K); Rio de Janeiro: Rio de Janeiro, 1910, Lützelburg 19 (K, M); São Paulo: Campinas , September 2007, A.P. Fortuna-Perez et al. 323 (UEC). COLOMBIA. Cundinamarca: Fusagasugá , 2 December 1965, E. Forero & J. Garzón 225 (NY). COSTA RICA. Turrialba : 1 January 1964, McKee 11124 (P). UNITED STATES. Texas: October 1849, M. Trécul 1208 (P). ECUADOR. Cumbaya : s.loc., 27 May 1930, M.R. Benoist 2575 (P). GUYANA. s.loc, 1841, Schumburgk 362 (F). FRENCH GUIANA. Rupununi Distr.: Shea Rock. , 24 August 1995, M.J. Jansen – Jacobs et al. 4812 (K). MEXICO: Ovzaba : s.loc., 1856, Botteri 682 (P). PANAMA. Aguadulce: Coclé, 3 December 1911, H. Pittier 4846 (US). PARAGUAY. Assunção: s.loc., 8 December 2007, A.P. Fortuna-Perez & M.J. Silva 325 (UEC). PERU. s.loc., 11 October 1976, D.C. Wasshausen & F. Encarnación 755 (NY). PORTO RICO. Orizaba : 1866, F. Müller 272 (P). SURINAME. Edo. Miranda : entre Urb. El Cafetal y Urb. El Hatillo, 24 July 1964, G. Agostini & M. Farinas 158 (K).

Figures

Figure 5. Zornia brasiliensis A. Inflorescence spiciform B. Shrub habit C. Flower detail; Zornia bracteata D.Detail of ovate bracteole, loment with 2–6 articles, and presence of bristle-like trichomes E. Leaves with 4 leaflets F. Flower. (Photos A, B, C: R.T. Queiroz; D, E, F: N. Frade).