Peltogyne chrysopis Barneby, Brittonia

Kochanovski, Fabio J., Nogueira, Luan H. P., Rosa, Marcus P. G., Mansano, Vidal F. & Sartori, Ângela L. B., 2025, Taxonomic review of the genus Peltogyne Vogel (Leguminosae, Detarioideae), Phytotaxa 688 (1), pp. 1-68 : 21

6. Peltogyne chrysopis Barneby, Brittonia 46: 270. 1994.

Holotype:— BRAZIL. Bahia: Una, Reserva Biológica do Mico-Leão, próximo a Picada do Príncipe , 15 September 1993, A. M. A. Amorim 1382 (Holotype: CEPEC; Isotypes: K, MBM, MO, NY, R, RB!, SP, US). Fig 11 .

Tree, 10–25 m tall, bark smooth, greyish, branches blackish, stipules early deciduous. Leaflets oblong, not falcate, 7.5– 9 × 3.3–5.6 cm, base rounded, apex rounded, sometimes retuse, glabrous, wax absent on both surfaces, concolorous, petiole 15–21 mm long, petiolule 5–7 mm long, blade decurrent, pulvinus dilated, primary vein conspicuous on both sides, secondary veins conspicuous on both sides, glands absent. Inflorescence a panicle, subterminal, laxiflorous, rachis glabrous, 16–20 cm long, inserted in a non-aphyllous branch. Pedicel 2–4 mm long, bracteoles caducous, hypanthium absent. Bud 5 × 7 mm, sepals subtriangular, outer side pubescent, inner side pubescent, margin glabrous, glands present, petals elliptic to oblanceolate, unguiculate, glabrous, glands present. Stamens of equal size, filaments 5–7 mm long. Stipe glabrous, 1 mm long. Ovary semicircular to subtriangular, pubescent, 3–5 mm long, style with terminal insertion, 5–6 mm long. Fruit a legume, indehiscent, orbicular, without a protuberance, compressed, 2.5–3.1 × 2.5–2.8 cm, sessile, nectary disc not persistent, trichomes sparse, glands absent, veins present, winged.

Phenology —Collected in flower between October and November and in fruit between November and January.

Distribution and habitat— Peltogyne chrysopis has a restricted distribution in the Atlantic Forest of Bahia, mainly in dense forests ( Fig 3 ).

Taxonomic comments— Peltogyne chrysopis has a laxiflorous inflorescence, different from P. angustiflora , with which it is often confused, as the latter has a densiflorous inflorescence. P. chrysopis can also be confused with two other species: P. confertiflora , from which it differs by the absence of hypanthium and presence of elliptic buds, and P. pauciflora , from which it differs by having a pubescent ovary.

Etymology— chrysopis , from the Greek, “golden face”, in reference to the Reserva do Mico-Leão-Dourado in Bahia, where P. chrysopis is common.

Specimens examined — BRAZIL. Bahia: Conde Fazenda Bu , 8 November 1995, M . C . Ferreira 824 ( ALCB!); Jandaíra, Fazenda Areia Branca , 29 November 2011, E . N . Mattos 2251 ( HSTM!); Nilo Peçanha, Comunidade Quilombola Jatimane , na beira do rio, 08 March 2014, L . P . de Queiroz 15840 ( RB!); 11 March 2014, D. M . Neves 1690 ( CEN!).

Digital images — BRAZIL. Bahia: Picada do Pincipe , 14 September 1993, A. M . Amorim 1382a ( NY); Reserva Biológica do Mico-leão ( IBAMA), Estrada que leva a Sede da Reserva , 09 November 1993, A. M . Amorim 1430 ( NY); Entrada no km 46 da Rod. BA-001 Ilhéus / Uma , estrada que leva a Sede da Reserva , 27 July 1993, A. M. V . Carvalho 4306 ( NY); Estrada que leva sede da reserva, 09 November 1993, S. C . Sant’Ana 1430 ( K); 27 July 1993, A. M . Carvalho 4306 ( K); Picada da Bandeira , 27 July 1993, A. M . Carvalho 4306 ( K) .

Vernacular names —Jatobá, Pau-roxo.

Figures

FIGURE 3. Distribution map of species of Peltogyne in the Atlantic Forest.

FIGURE 11. Peltogyne chrysopis Barneby. A, branch with leaflets, and inflorescence (scale: 3 cm). B, flower bud in pre-anthesis (scale: 3 mm). C, flower in anthesis (scale: 3 mm). D, petal (scale: 3 mm). E, stamens with different lengths (scale: 2 mm). F, carpel, with pilose ovary, and straight style (scale: 1 mm). G, fruit (scale: 3 cm). Illustrated by Fábio Júnior Kochanovski.