Zornia harmsiana Standl., Publ. Field Mus. Nat. Hist. Chic., Bot. Ser

Zornia harmsiana Standl., Publ. Field Mus. Nat. Hist. Chic., Bot.Ser,. 11(5): 161. 1936. Figs 9A, S 3 Type: BRAZIL. Bahia: Remanso, December 1906, Ule 7374 (holotype F–BN002252!; isotypes F–0093430F!, HBG–518947!, K–000205323!). Zornia gracilis Harms, Eng. Bot. Jahrb. 42: 212. 1909, nom. nud., non DC. 1825. Zornia harmsii Herter, Rev. Sudamer. Bot. 6: 154.1940, nom. nud. Shrub to ca. 30 cm tall. Stems prostrate, branched, pubescent. Leaves with 4 leaflets, petiolate. Leaflets 5–40 × 1–3 mm, linear, pubescent. Stipules ovate, 4–5 veined. Inflorescences spiciform, axillary, 20 cm long. Bracteoles 5–9 × 2.5–4 mm, oblong, 8–10 veined, punctate, glabrous, green. Loment with 3–4 articles; articles 1.5–2 × 1–1.5, not reticulate-veined, bristle-like trichomes absent. Distribution and habitat: Brazil, endemic. It occurs in sandy soils of the Caatinga vegetation in Tropical Dry Forest. Conservation Status: Endangered (EN). Zornia harmsiana is considered endangered due to its limited distribution range within the Caatinga in Brazil (EOO= 300,080.950 km ²; AOO= 120.000 km ²). Notes: This species is easily recognizable by its typically prostrate branches, linear leaflets and oblong bracteoles. Representative specimens examined: BRAZIL. Bahia: Bom Jesus da Lapa, 18 April 1980, R.M. Harley 21512 (K); Pernambuco: Caboclo, entre Caboclo e Dormentes, 22 April 1971, E.P. Heringer 274 (RB); Piauí: São Raimundo Nonato, 22 July 1983, L. Coradin et al.5925 (K); Rio Grande do Norte: s.loc., 1877–78, Jobert 1178 (P).