Crotalaria micans Link (1822:228)

Flores, Andréia Silva & Tozzi, Ana Maria Goulart De Azevedo, 2018, A synopsis of the genus Crotalaria (Leguminosae) in Brazil, Phytotaxa 346 (1), pp. 31-58 : 45

21. Crotalaria micans Link (1822:228) . ( Fig. 7d ).

Type: —“C. America, undated, A.J.A. Bonpland & F.W.H.A. von Humboldt 2172 (holotype: B 13272010 digital image!; isotype: P 00660093 digital image!).

Shrub or subshrub 3m high; branches puberulous; internodal stem wings absent. Leaves 3-foliolate, digitate, petioles 3–7 cm long; leaflets elliptic or oblong- elliptic, 3.5–8 × 0.9–2.5 cm, pubescent above and glabrous beneath; stipules 2–8 mm long, subulate, caducous. Inflorescence a raceme, 6–27 cm long, terminal, erect; peduncles 0.5–6.5 cm long. Flowers 10–27, pedicels 5–8 mm long; bracts 5–12 mm long, subulate, curled, caducous; bracteoles 5–7 mm long, subulate, caducous; calyx 7–11 mm long, lobes twice as long as the tube, pubescent; corolla yellow, reddish marked with age; the standard petal 1.3–2.1 × 1.6–2.5 cm; wing petals 1.3–2 cm long; keel petals 1–1.6 cm long, lanate on the upper margin, untwisted; ovary 6–8 mm long, stipitate; style curved. Legumes 3–4 × 0.7–1.5 cm, oblong, puberulous, brown at maturity, ca. 30-seeded; seeds 5 × 4 mm, seed coat orange, brown or red.

Distribution and Ecology: —This taxon is native to Mexico, Central and South America and was introduced in Africa and Madagascar ( Polhill, 1982). Crotalaria micans is widespread in Brazil, occurring in rocky fields, open areas of cerrado vegetation, and near the margins of gallery forests.

Selected material examined: — BRAZIL. Acre: Cruzeiro do Sul, 23 February 1976, Monteiro & Damião 604 (MG). Amapá: Macapá, Porto Platon, 12 October1976, Rosa 976 (MG). Amazonas: Benjamin Constant, 07 August 2000, Pohlit s.n. (INPA 204581). Bahia: Mucugê, 17 January 2002, Flores et al. 753 (UEC). Goiás: Alto Paraíso de Goiás, 16 May 2002, Flores & Rodrigues 977 (UEC). Mato Grosso: Alto Araguaia, 13 April 2001, Flores & Rodrigues 549 (UEC). Mato Grosso do Sul: Bandeirantes, 11 April 2001, Flores & Rodrigues 520 (UEC). Minas Gerais: Bocaiúva, 25 January 2002, Flores et al. 803 (UEC). Pará: São Francisco do Pará, 13 December 1978, Bastos et al. 151 (MG). Paraná: Campina Grande do Sul, Serra Capivari Grande, 04 February 1985, Oliveira & Cordeiro 815 (MBM). Rio de Janeiro: Itatiaia, Parque Nacional do Itatiaia, 16 April 1967, Lindeman & Haas 5138 (U). Rio Grande do Sul: Osório, 19 April 2002, Flores & Rodrigues 906 (UEC). Rondônia: Guajará- Mirim- Abunã, 01 February 1983, Carreira et al. 445 (MG). Santa Catarina: Blumenau, Salto Weissbach, 06 February 1960, Reitz & Klein 9524 (HBR). São Paulo: Botucatu, 31 December 1998, Galvani s.n. (ICN 116081).

Figures

FIGURE 7. Habit of (a) Crotalaria martiana subsp. martiana DC., (b) Crotalaria martiana subsp. mohlenbrockii (Windler & S.G. Skinner) Planchuelo, (c) Crotalaria maypurensis Kunth, (d) Crotalaria micans Link, (e) Crotalaria miottoae A.S. Flores & A.M.G. Azevedo, (f) Crotalaria otoptera Benth. Photos by A.S. Flores.