Entada mannii (Oliv.) Tisser., Bull. Soc. Bot. France 99: 257. 1953.

O'Donnell, Shawn A., Ringelberg, Jens J. & Lewis, Gwilym P., 2022, Re-circumscription of the mimosoid genus Entada including new combinations for all species of the phylogenetically nested Elephantorrhiza (Leguminosae, Caesalpinioideae, mimosoid clade), PhytoKeys 205, pp. 99-145 : 99

Entada mannii (Oliv.) Tisser., Bull. Soc. Bot. France 99: 257. 1953.

= Entada bequaertii De Wild., Pl. Bequaert. 3: 79. 1925.

Type.

EQUATORIAL GUINEA. Fernando Pó (Boiko), Mann 414 (holotype: K [K000232169]).

Basionym.

Piptadenia mannii Oliv., Fl. Trop. Afr. [Oliver et al.] 2: 329. 1871.

Description.

Shrub, scandent, sometimes becoming arborescent, to 30 m, stem 15 cm diameter near base, glabrous (Fig. 17A ). Leaves: rachis 5-20 cm long, sparsely pubescent; pinnae 3-6 pairs per leaf, one or more pinnae sometimes modified into a tendril, leaflet-bearing pinnae 4-6 cm long, with 8-13 pairs of leaflets; leaflets 4-16(-21) × 1.5-7 mm, oblong, apex retuse, base rounded, asymmetric, lamina glabrous to puberulous above, pubescent below (Fig. 17B ). Inflorescence: an axillary spiciform raceme, 5.5-10 cm long, in panicles from the upper axils, rachis pubescent (Fig. 17D ). Flowers: white, minutely pedicellate; calyx 0.7-1 mm, shallowly toothed, glabrous to puberulous; petals 2 mm long (Fig. 17D ). Fruit: a torulose, laterally compressed, straight craspedium, 15-45 × 6-10 cm, with transverse septa between seeds dividing the fruit into one-seeded segments which, upon ripening, fall from the persistent replum (Fig. 17E ). Seeds: elliptic, 1.8 × 0.9 cm, pleurogram present.

Distribution.

Tropical West Africa, from Senegal to Angola.

Habitat and ecology.

Riparian forest and on rocky hills in forest.

Figures

Figure 17. Entada mannii habit, vegetative and reproductive structures. A scandent shrub with mature fruits, Mali (photo: P Birnbaum, Dressler et al. (2014 a)) B leaf bearing oblong leaflets, Malawi (photo: C Chisale, Dressler et al. (2014 a)) C young shoot with swollen nodes either side of petiole insertion, Mali (photo: P Birnbaum, Dressler et al. (2014 a)) D spiciform raceme with open, pedicellate flowers and closed flower buds, Congo (photo: D Harris, Dressler et al. (2014 a)) E leaf and nearly mature fruits, Mali (photo: P Birnbaum, Dressler et al. (2014 a)).