1	"Flowers single or in pairs without a common peduncle; pedicels distinctly winged; fruit globose"	"Lysiana murrayi"
1	"Flowers in pairs on a common peduncle (sometimes very short); pedicels not distinctly winged; fruit ellipsoidal to ovoid"	2
2	"Leaves flat (rarely compressed when very narrow)"	3
2	"Leaves terete"	6
3	"Leaves linear to narrowly oblong or oblanceolate, usually less than 10 mm wide"	4
3	"Leaves oblanceolate to spathulate, usually more than 10 mm wide"	5
4	"Leaves linear to narrowly oblong, with obscure venation; fruit deeply coloured; calyx usually short, entire"	"Lysiana exocarpi"
4	"Leaves oblanceolate, with distinct venation; fruit more or less translucent; calyx usually lobed or toothed"	"Lysiana subfalcata"
5	"Calyx forming a collar below apex of fruit; anthers septate"	"Lysiana spathulata"
5	"Calyx forming a collar at apex of fruit; anthers not septate"	"Lysiana maritima"
6	"Peduncle more than 5 mm long, 0.5–1 mm thick"	"Lysiana linearifolia"
6	"Peduncle less than 4 mm long, c. 1.5 mm thick"	7
7	"Leaves 4.5–9 cm long; corolla 35–50 mm long"	"Lysiana casuarinae"
7	"Leaves 10–20 cm long; corolla c. 30 mm long"	"Lysiana filifolia"