1	"Flowers radially symmetric; petals fused into a tube; stamens 6, all fertile, alike; filaments with long hairs; seeds with a terminal embryotega"	"Cyanotis {Cyanotis somaliensis}"
1	"Flowers radially to strongly bilaterally symmetric; petals free; stamens 2-3; staminodes 2-4; filaments glabrous or hairy; seeds with a lateral to dorsal embryotega"	2
2	"Leaves all or mainly in a basal rosette; flowers radially symmetric; stamens 3, alternating with 3 stamnodes; cells of capsules with 8-12 seeds"	"Anthericopsis {Anthericopsis sepalosa}"
2	"Leaves usually all or mostly cauline, rarely in a rosette; flowers slightly to strongly bilaterally symmetric; stamens and staminodes not as above; cells of capsules with 1-2(-4) seeds"	3
3	"Inflorescences enclosed in spathers, often becoming leaf-opposed; staminodes with 4-6 antherodes (occasionally reduced("	Commelina
3	"Inflorescences never enclosed in spathers, not becoming leaf-opposed; staminodes with 2- or 3-lobed antherodes"	4
4	"Bracteoles soon falling; petals equal, not clawed; stamens 2; staminodes 4; antherodes 3-lobed; capsules 3-celled, 3-valved"	"Murdannia {Murdannia simplex}"
4	"Bracteoles persistent; 1 petal differentiated from the other 2, the 2 clawed; stamens 3; staminodes 2-3; antherodes 2-lobes; capsules 2-3-celled, 2 valved"	Aneilema