1	Flower 6-merous; capsule dehiscing from the base	Microlicia macrantha
–	Flower 5-merous; capsule dehiscing from the apex	2
2	Anther polysporangiate	3
–	Anther tetrasporangiate	4
3	Leaf blade with glaucous, villous indumentum; hypanthium campanulate	Microlicia fasciculata
–	Leaf blade with greenish to yellowish, setose indumentum; hypanthium urceolate	Microlicia helvola
4	Petal white to pinkish-white or cream to white with pink vein	5
–	Petal pinkish or magenta	6
5	Leaf discolorous (darker adaxial surface), revolute at the margin; petiole 6–10 mm long; flower with a short pedicel (1–2 mm long)	Microlicia parviflora
–	Leaf concolorous (green), flat at the margin; petiole 2–3 mm long; flower with a long pedicel (6–9 mm long)	Microlicia phlogiformis
6	Main branch with leaf larger than in the lateral branches	7
–	Main and lateral branches with the same size leaf	8
7	Leaf blade cordate; hypanthium campanulate; sepal positioned horizontally on flower and immature fruit	Microlicia cordata
–	Leaf blade oblong to ovate-oblong, sometimes elliptic, rare lanceolate; hypanthium cylindrical; sepal deflexed on flower and immature fruit	Microlicia deflexa
8	Stamen with concolorous anther (yellow), sometimes with vinaceous spots; petal longer than 8.5 mm	Microlicia polystemma
–	Stamen with bicolorous anther (vinaceous and yellow); petal less than 8 mm	9
9	Leafblade with dense indumentum of setose trichomes and spherical glands; hypanthium cylindrical; petal with greenish abaxial surface at the apex	Microlicia johnwurdackiana
–	Leafblade with sparse indumentum of spherical glands; hypanthium campanulate; petal entirely magenta	Microlicia trembleyiformis