1	"Rainforest tree with hair-tuft domatia on lower side of leaf; inflorescence a many-flowered fascicle in leaf axils"	Rinorea
1	"Shrubs or herbs, non-rainforest, domatia absent; inflorescence 1- or 2-flowered axillary, or a terminal raceme 10-20 cm long"	2
2	"Flowers symmetric, all petals about same size and shape; branchlets spinose; fruit a berry"	Melicytus
2	"Flowers asymmetric, petals of different sizes and shapes; branchlets not spinose; fruit a capsule"	3
3	"Stoloniferous herbs, petioles much longer than lamina; sepals with basal appendages; largest petal not more than twice length of smallest petal"	Viola
3	"Erect herbs or shrubs, stolons absent, petioles absent or very short; sepals without basal appendages; largest petal far longer than other petals"	Pigea