Zornia guanipensis Pittier, Bol. Soc. Venez. Cienc. Nat.

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 : 19

Zornia guanipensis Pittier, Bol. Soc. Venez. Cienc. Nat. 6: 194. 1940.

Figs 8 , S 3

Type: VENEZUELA. Anzoategui: Near El Tigre , Pittier 14315 (holotype US–00001990 !)

Zornia marajoara Huber, Bol. Mus. Goeldi Hist. Nat. Ethnogr. 5: 150. 1908. Type: BRAZIL. Pará: Ilha de Marajó , de Miranda 3147 (holotype P– 02142436!; isotypes BM– 000931677!, G–00370147!, US –00001990!).

Zornia tenuifolia var. latifolia Benth., C.F.P.von Martius & auct. suc. eds., Fl. Bras. 15(1ª): 81. 1859. Type: BRAZIL. Bahia: Serra do Açuruá , Blanchet 2842 (holotype K–000205336!; isotype BM–000931678!).

Shrub to ca. 1 m tall. Stems erect, branched, glabrous to tomentose. Leaves with 4 leaflets, petiolate. Leaflets 2–35 × 1–16 mm, obovate to elliptic, villous. Stipules ovate, 4–5 veined. Inflorescences spiciform, axillary, 15 cm long. Bracteoles 3–6 × 1.5–3 mm, elliptic, 5–7 veined, punctate, glabrous, green. Loment with 3–5 articles; articles 2 × 2.5 mm, not reticulate-veined, bristle-like trichomes 0.5 mm long.

Distribution and habitat: Brazil, Colombia, Venezuela. It occurs in Savanna and Tropical Dry Forest.

Conservation Status: Near Threatened (NT). Zornia guanipensis has a fragmented distribution (EOO= 3,737,926.026 km ² and AOO= 144.000 km ²).

Notes: Zornia guanipensis morphologically resembles Z. tenuifolia . But it differs mainly by the obovate to elliptic leaflets (vs. filiform in Z. tenuifolia ).

Representative specimens examined: BRAZIL. Bahia: Gentio do Ouro, Serra do Açuruá, s.d., Blanchet 2842 (K); Maranhão: s.loc., July 1914, A. Lisboa 4757 (P); Pará: Marajó, Belterra et al. 105 (RB); Pernambuco: Olinda , 20 June 1925, F.C.Hoehne 737 (SP); Piauí: s.loc., s.d., Allemão & Cysneiros 341 (P). FRENCH GUIANA. Kourou–Sinnamary , 35 September 1963, McKee 10719 (P). VENEZUELA. Esdo. Monagas: Jusepin , 8 October 1963, McKee 10776 (K, P).

Figures

Figure 3. Main preferred vegetation types of Zornia species.A. Campo rupestre vegetation, sandy soil, Savanna B. Cerrado vegetation, Savanna C. Roadsides D. Caatinga vegetation, Tropical Dry Forest E. Campo rupestre vegetation, Savanna F. Cerrado vegetation, Savanna G. Cattle pastures H. Caatinga vegetation, Tropical Dry Forest. (Photos A, B, C, E, F, G: L.C. Zeferino; D, H: F.F. Pezzini).

Figure 8. Zornia guanipensis. A. Flower detail B. Inflorescence spiciform axillary; Zornia grandiflora C. Flower detail D.Shrub in habit, stems erect E. Details of fruit and inflorescence. (Photos: R.T. Queiroz).