A synopsis of the genus Crotalaria (Leguminosae) in Brazil Author Flores, Andréia Silva Instituto de Amparo à Ciência, Tecnologia e Inovação de Roraima, Herbário do Museu Integrado de Roraima, Av. Brigadeiro Eduardo Gomes s. n., Parque Anauá, 69305 - 010 Boa Vista, RR, Brazil Author Tozzi, Ana Maria Goulart De Azevedo Universidade Estadual de Campinas, Instituto de Biologia, Departamento de Botânica, CP 6109, CEP 13083 - 970, Campinas, São Paulo, Brazil. text Phytotaxa 2018 2018-03-29 346 1 31 58 http://dx.doi.org/10.11646/phytotaxa.346.1.2 journal article 10.11646/phytotaxa.346.1.2 1179-3163 13708620 35. Crotalaria trichotoma Bojer (1835:265) . Neotype (designated by Polhill 1990 ): — “ Cult. in Hort. Mauritius e Madagascaria ”, undated, H.M. Bojer s.n. (K 000227294 digital image!) Crotalaria zanzibarica Bentham (1843: 548) Type: — TANZANIA , Zanzibar , I., undated, H.M. Bojer s.n. ( holotype K 000412617 digital image!). Shrub or subshrub, 1–2 m high; branches finely pubescent; internodal stem wings absent. Leaves 3– foliolate, digitate, petioles 2.5–5 cm long; leaflets oblong- elliptic or elliptic, 4–8.5 × 1.5–2.5 cm , puberulous above, glabrous beneath; stipules 1–2 mm long, linear. Inflorescence a raceme, 2–9 cm long, terminal; peduncles 2.2–5 cm long. Flowers 25–50, pedicels 5–8 mm long; bracts 1–2 mm long, linear, persistent; bracteoles 1 mm long, linear, persistent; calyx 4–5 mm long, lobes same length or smaller than the tube, puberulous; corolla yellow, veined reddish brown; the standard petal 1.2–1.5 × 0.9–1.1 cm ; wing petals 1.3–1.5 cm long; keel petals 1.2–1.5 cm long, untwisted; ovary 5–7 mm long, stipitate; style curved. Legumes 3–4 × 0.8–1 cm , cylindrical, glabrous, black or brown at maturity, ca. 20-seeded, shortly stipitate; seeds 2–3 × 2–3 mm , seed coat orange or yellow. Distribution and Ecology: — Crotolaria trichotoma is an African species found only in the states of Minas Gerais and São Paulo in Brazil , cultivated or in disturbed vegetation. Selected material examined: — BRAZIL . Minas Gerais : Juiz de Fora , November 1969 , Krieger 7922 ( IAC ). Paraíba :Areia, 30 October 1944 , Vasconcellos 341 ( RB ). Rio de Janeiro : Itaguaí, 06 May 1982 , Döbereiner & Tokarnia 1692 ( UB ). Rio Grande do Sul : Pelotas, 23 January 1955 , Sacco 343 (F, PACA, HBR, PEL ). São Paulo : Campinas, March 2001 , Flores & Rodrigues 593 ( UEC ) ; Piracicaba , 08 April 2001 , Flores & Schütz - Rodrigues 505 ( UEC ) .