Ancistrotropis peduncularis (Fawcett. & Rendle 1920: 68) A. Delgado (2011: 1704)

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 : 22-23

3. Ancistrotropis peduncularis (Fawcett. & Rendle 1920: 68) A. Delgado (2011: 1704) . ( Fig. 3e )

Climbing, branches scabrous, inermous. Nectary absent. Stipules lateral, narrowly–triangular. Leaves imparipinnate, 3–foliolate, leaflets opposite, ovate, venation actinodromous, translucid punctuation absent. Inflorescence raceme, axillary. Flowers pedicellate, asymmetrical, diplostemonous; calyx gamosepalous, sepals 5, corolla dialypetalous, papilionaceous, lilac, petals 5; androecium diadelphous, heterodinamous, anthers longitudinal; ovary superior, sessile, pluriovulate. Fruit legume, sessile, linear, cylindrical, margin straight, epicarp scabrous. Seeds reniform, cylindrical, coat gray, hilum central.

Examined material:— BRAZIL. Paraíba: Maturéia, Pico do Jabre , 800 m elev., 22 February 2019, fl. & fr., Aureliana Gomes 3014 ( HACAM) .

Distribution and ecology:— It is distributed in the Neotropical region; in Brazil, it can be found in the North (AM, PA, RO), Northeast (BA, PB), Central-West (DF, GP, MS, MT), Southeast (MG, SP) and South (PA, RS) regions, in the domains of the Amazon, Caatinga, Cerrado, Atlantic Rainforest and Pantanal (BFG 2018; Rodrigues et al. 2020).

Phenology:— Registered with flowers and fruits in February.

Taxonomic discussion:— Ancistrotropis peduncularis can be recognized, mainly, by the vine habit, scabrous branches, trifoliolate, opposite leaflets and lilac corolla. It has similarities with the species of Macroptilium due to the shape of the leaflets, but they are distinguished by the colors of the petals being Ancistrotropis lilac and scabrous branches versus red and tomentose branches in Macroptilium .

Figures

FIGURE 3. Species of Fabaceae Lindl. of the study area, Pico do Jabre State Park, Paraíba, Brazil. a Centrosema brasilianum. b Platymiscium floribundum. c Macropsychanthus grandiflorus d Centrosema sagittatum. e Ancistrotropis peduncularis. f Poecilanthe grandiflora. g Erythrina velutina. h Chamaecrista repens. i Canavalia brasiliensis. j Bauhinia cheilantha. k Stylosanthes viscosa. l Crotalaria vitelina. (Source: the authors).