1	"Flowers not in spikelets, culms not striate"	2
1	"Flowers in spikelets; culms striate or not striate"	3
2	"Culm pith cavity circular; stomates scattered on culms; leaf sheaths striate; ovary 3-locular"	Lepyrodia
2	"Culm pith cavity angular; stomates arranged in horizontal bands on culms; leaf sheaths not striate; ovary 1-3-locular"	Sporadanthus
3	"Fruit indehiscent"	4
3	"Fruit dehiscent"	8
4	"Style 1"	Coleocarya
4	"Styles 2 or 3"	5
5	"Leaf lamina reflexed from the sheath; culms not striate, glabrous, branched"	Empodisma
5	"Lamina absent or not reflexed; culms mostly striate, glabrous or hairy, simple or branched"	6
6	"Pericarp of nut woody"	Hypolaena
6	"Pericarp of nut thin-textured"	7
7	"Female flowers in distinct spikelets, spikelets not compound, with no bracts between the flower and subtending glume; flowers dorsiventrally flattened with winged lateral tepals"	Leptocarpus
7	"Female flowers in large clusters without distinct spikelet structure or in compound spikelets with small bracts between the flower and subtending glume; flowers not dorsiventrally flattened (sometimes laterally flattened)"	Dapsilanthus
8	"Chlorenchyma not interrupted by pillar cells, girders or enlarged epidermal cells; culm usually not striate"	9
8	"Chlorenchyma interrupted by pillar cells, girders or enlarged epidermal cells; culm usually striate"	10
9	"Flower attached to glume; capsule falling with glume and perianth attached; female flowers with 4 tepals; seeds smooth"	Baloskion
9	"Flower not attached to glume; capsule not falling at seed dispersal; female flowers with 6 tepals; seeds striate with longitudinal lines of convex cells"	Chordifex
10	"Culms flattened"	Eurychorda
10	"Culms terete"	Chordifex