Senegalia polyphylla (De Candolle 1822: 1813 ) Britton & Rose (1936:142)

Gomes, Aureliana Santos, Rodrigues, Erimágna De Morais, Moura, Débora Coelho, Melo, José Iranildo Miranda De, Ribeiro, Rayane De Tasso Moreira & Queiroz, Rubens Teixeira De, 2022, Fabaceae Lindl. in a Conservation Unit in the Semi-Arid Region of Paraíba, Brazil, Phytotaxa 555 (1), pp. 17-41 : 34

29. Senegalia polyphylla (De Candolle 1822: 1813) Britton & Rose (1936:142)

Trees, branches glabrescent, aculeate. Nectary petiolar, sessile. Stipules lateral, narrow-triangular. Leaves bipinnate, paripinnate, 8–16–foliolate, leaflets opposite, oblong, venation actinodromous, translucid punctuation absent. Inflorescence glomerule, axillary. Flowers sessile, actinomorphic, polistemonous; calyx gamosepalous, sepals 5, corolla gamopetalous, tubular, whitish, petals 5; androecium dialystaminous, homodinamous, anthers longitudinal; ovary superior, stipitate, pluriovulate. Fruit legume, sessile, linear, plane–corrugate, margin straight, epicarp glabrous, brown. Seeds oblong, plane, coat brown, hilum basal.

Examined material:— BRAZIL. Paraíba: Maturéia, Pico do Jabre , 1.197 m elev., 12 April 2019, fl., Aureliana Gomes 2030 ( HACAM) .

Distribution and ecology:— The species is distributed in all regions of Brazil associated with the phytogeographic domains of the Amazon, Caatinga, Cerrado, Atlantic Rainforest and Pantanal in areas of seasonal forest, swamps of altitude and restinga ( Barros 2011).

Phenology:— Registered with flowers in April.

Taxonomic discussion:— Senegalia polyphylla can be recognized, mainly, by the arboreous habit, branches armed with aculeous, petiolar nectaries, bipinnate leaves, and by the inflorescences in axillary glomerule. Among the species of the Mimosoideae clade, we find species with monadelphous androecium and dialystaminous. The representatives of monadelphous androecium belong to the Ingeae tribe, while those with dialystaminous androecium may belong to the Mimoseae or Acacieae tribes. The androceu-related characteristic used to separate species is the number of stamens; the species of Mimoseae are isosstaminous or diplostaminous whereas those belonging to Acacieae have polistaminous flowers. This species is popularly known as angico branco.