Stryphnodendron pulcherrimum

Trees (5 –) 8 – 23 (– 25) m tall, trunk usually straight. Leaves with (9 –) 11 – 16 (– 18) pairs of pinnae; (8 –) 15 – 28 (– 32) pairs of leaflets; petiolar nectary 1, verruciform to verruciform with an elongated base; leaflets 3 – 9 × 1 – 3 mm, usually narrowly oblong, sometimes narrowly elliptic to lanceolate, distal leaflets usually obovate, proximal usually elliptic, chartaceous, subconcolor to discolor, upper surface usually sparsely puberule, sometimes puberule to sparsely pubescent, very rarely glabrous, lower surface usually puberule to pubescent, sometimes villous, rarely glabrous and then the midrib puberule, unilateral tuft of trichomes on the lower surface usually inconspicuous, sometimes absent. Inflorescences of simple thyrsi, yellowish, greenish yellow to whitish yellow; cymulae of geminate to 4 - ternate spikes; spikes 9.5 – 14 cm long. Flowers usually monoclinous, rarely diclinous, corolla tube sparsely pubescent, lobes yellowpubescent, yellowish to light-yellow, rarely white. Fruit a nucoid legume, straight, subturgid, seeds slightly prominent, valves subcoriaceous, inconspicuously nerved (Fig. 1 A). Vernacular names: — Baginha, Baguinha, Baginha-de-São-João (Brazil, Acre), Favinha (Brazil, Alagoas, Paraíba, Pernambuco), Paricá (Brazil, Amapá), Cobi, Caubi, Juerana, Juerana-branca, Muanza, Munzê, Tamba-empé, Taimbapé, Tambaipé, Tamanqueira (Brazil, Bahia), Barbatimão (Brazil, Bahia, Pará), Camuzé, Fava, Timbaúba, Timbó-da-mata (Brazil, Amazonas), Timborana (Brazil, Pará), Paricarana (Brazil, Amazonas, Pará), Fava-Brabatimão (Brazil, Mato Grosso); Hediodillo (Bolivia); Pashaco (Peru); Kwattakamma, Pikin-misiki (Suriname); Arekuna, Abarkayakán, Brusquillo, Uramayudek (Venezuela). Nomenclatural notes: — A lectotype was selected among the three syntypes indicated by Bentham (1841) for S. floribundum. This same author (1875) published S. angustum citing on the protologue only the collection site (“ near Barra do rio Negro ”), and in Flora brasiliensis, published in the following year, he referred Martius as the collector of the sample. The type corresponds to Martius 2578 (2758?), for which we found four duplicates in M, requiring the lectotypification performed here. Our searches found several duplicates of the type referred by Sagot (1882) to Stryphnodendron melinolis, the specimen in P that was indicated as lectotype is here formally indicated as such.