Anisosperma Silva Manso
Anisosperma Silva Manso, Enum. Subst. Brazil. 38. 1836.
Type: Anisosperma passiflora (Vell.) Silva Manso; basionym: Fevillea passiflora Vell., J.M. Vellozo, Fl. Flumin. Icon. 10: t. 104. 1831(„1827“), Brazil, Rio de Janeiro, lectotype designated by Robinson & Wunderlin, Sida 21: 1993. 2005. 

Perennial liana with several meters long woody shoots and dioecious sex system. The leaves are petiolate, simple, with ovate to broadly lanceolate, membranaceous blade, up to 13 cm long and 7.5 cm wide, with two small auriculate glands near the base and acute apex. The tendrils are simple and glabrous. The flowers are small, male flowers are produced in dense panicles or umbels, female flowers in groups of 2-4. The receptacle tube is shallowly cup-shaped, glandular pubescent, with five tiny, acute sepals. The corolla is rotate with five oblong-hastate, green or yellowish petals. The five anthers are monothecous and inserted on short free filaments. The fruit is fleshy, ovoid-oblong, subtrigonous, with short-apiculate apex, 8-15 cm long and 5-11 cm across, smooth or verrucose. The seeds are compressed, suborbicular, pale brown, 3.5 cm in diameter and 1.5 cm thick.

The single species is found in gallery forests near sea level of coastal Brazil.

Anisosperma is placed in tribe Triceratieae (Fevilleeae) but its exact position is still unclear (Schaefer et al. 2009, Schaefer & Renner 2011).