Vochysiaceae, Aublet, 1775

Ariza-Cortés, William, Cortés-B, Rocio & Fernández-Alonso, José Luis, 2022, Mahechadendron puntecascarillo (Vochysiaceae), a new genus and forest tree species from Colombia, Phytotaxa 541 (2), pp. 89-112 : 108

Key to the genera of Vochysiaceae

1. Trees with unilocular inferior ovary, samaroid fruits .........................................................................................................................2

- Trees, shrubs or subshrubs with trilocular superior ovary, capsular fruits (Neotropics)...................................................................4

2. Flowers with five petals, fruits with five wings (West Africa)...........................................................................................................3

- Flowers with a single petal, fruits with four wings (Neotropics) ............................................................................................. Erisma

3. Calyx with three petaloid sepals and two non-petaloid.............................................................................................. Korupodendron

- Calyx with five non-petaloid sepals ............................................................................................................................. Erismadelphus

4. Petals 5, branches with 5–9 leaves per node ......................................................................................................................... Salvertia

- Petals absent, 1 or 3, branches with 2–5(8) leaves per node ..............................................................................................................5

5. Petals usually 3, less often absent or 1 .................................................................................................................................. Vochysia

- Petals 1................................................................................................................................................................................................6

6. Stipules transformed into glands, fruit without a central column ......................................................................................................7

- Stipules obsolete, not transformed into glands, fruit with a thick and persistent central column ......................................................8

7. Unspurred sepal lobes appressed to the spurred sepal and much shorter than it; anther with unilaterally ciliated theca.................... ........................................................................................................................................................................................... Ruizterania

- Unspurred sepal lobes not appressed to the spurred sepal, generally of similar length; anther glabrous or hairy only on back ......... .................................................................................................................................................................................................. Qualea

8. Inflorescences in cincinnus with 1–5 flowers, unguiculate petal, fruits with brittle exocarp that separates unevenly from the endocarp, circularly winged seeds..................................................................................................................................... Callisthene

- Inflorescences in compound dichasia with more than 16 flowers, sessile petal, fruits with exocarp soft, not brittle, not separated from the endocarp, unilaterally winged seeds .......................................................................................................... Mahechadendron