Key for Chorisepalum Gleason & Wodehouse

1Leaves somewhat shining and smooth above with inconspicuous venation, secondary veins not impressed above
1'Leaves dull above with conspicuous venation, secondary veins impressed above
2Leaves subsucculent, broadly elliptic to broadly ovate, margin revolute; outer calyx lobes not winged
2'Leaves coriaceous, narrowly elliptic to ovate, margin flat; outer calyx lobes with 2 wings
3Petioles 1-2 cm long; leaves ovate-elliptic, 4-13 cm long, apex acuminate; pedicels 1.5-3 cm long; calyx lobes 2.5-3.3 cm long
3'Petioles 0.4-1 cm long; leaves suborbicular to elliptic, 2-7 cm long, apex rounded and sometimes mucronate; pedicels 0.8-1.1 cm long; calyx lobes 1.5-2.2 cm long