Key for Napeanthus Gardner

1Leaves linear to narrow-oblanceolate, > 6 times as long as wide, apex acute to acuminate, below purplish
1'Leaves oblong-spathulate or oblanceolate, < 4 times as long as wide, apex acute to obtuse or rounded, below pale green
2Corolla lobes rounded at apex
2'Corolla lobes emarginate
3Calyx lobes connate for 2 mm at base
3'Calyx lobes free to base