Leopoldinia Martius

Henderson, Andrew, 2011, A revision of Leopoldinia (Arecaceae), Phytotaxa 32, pp. 1-17 : 8

Leopoldinia Martius (1823–1837: 58).

Lectotype (designated by Moore 1963):— Leopoldinia pulchra Martius

Stems solitary or stems clustered. Leaf sheath fibers from apices of sheaths short, joined into a solid, woody tip, or fibers from apices of sheaths short, loose, separating, not joined, or fibers from apices of sheaths elongate, pendulous; pinnae spreading horizontally, or pinnae pendulous; pinnae bases narrowed with abaxial, distal and proximal swellings adjacent to rachis, or pinnae bases broad, not narrowed, without swellings; midveins prominent and raised in cross-section adaxially, or midveins scarcely raised in cross-section adaxially. Inflorescences dimorphic, the staminate with 0.6–2.0 cm long rachillae, the pistillate with 9.5–18.0 cm long rachillae, or inflorescences monomorphic, the rachillae 2.5–8.0 cm long (rarely predominantly staminate and then 0.6–2.0 cm long); fruits flattened, globose to obovoid in side view, the surfaces with raised, reticulate ridges from mesocarp fibers, giving a wrinkled appearance, or fruits flattened, obovoid in side view, the surfaces smooth or with obscure, non-reticulate ridges from mesocarp fibers, or fruits not flattened, globose to ellipsoid, the surfaces with raised, reticulate ridges from mesocarp fibers, giving a wrinkled appearance.