Oxandra, Richard, 1845

Lopes, Jenifer De Carvalho, Junikka, Leo & Mello-Silva, Renato, 2013, Oxandra unibracteata (Annonaceae), a new species from the Atlantic Forest and a new synonym of O. nitida, Phytotaxa 84 (1), pp. 25-30 : 28-29

Key to species of the genus Oxandra in the Brazilian Atlantic Forest

1. Leaves with tertiary veins distinctly reticulate ........................................................................................................... 2

- Leaves with tertiary veins not reticulate or only slightly reticulate.............................................................................. 3

2. Leaves elliptic to narrowly ovate with a cordate base; pedicels 3–6 mm long, bracts 2–10; stipe of monocarps 1–4 mm long .................................................................................................................................................... O. reticulata

- Leaves narrowly elliptic with an acute to slightly attenuate base; pedicels 12–15 mm long, bract 1; stipe of monocarps 7–8 mm long ................................................................................................................................ O. unibracteata

3. Androdioecious; outer petals lanceolate; stipe of monocarps 7 mm long ................................................. O. martiana Hermaphrodite , perfect flowers; outer petals orbiculate; stipe of monocarps 1 mm long ................................ O. nitida