1	"Shrubs (sometimes prostrate) to small trees; stamens 4"	2
1	"Herbs or, if shrubby then stamens 2"	7
2	"Corolla white or violet, tube <6 mm long"	3
2	"Corolla variously coloured, rarely white, tube >8 mm long"	6
3	"Corolla slightly to strongly zygomorphic, caducous or more rarely persistent, lobes equally or unequally cut into tube; fruit glabrous, variously hairy or lepidote dry or very rarely succulent"	4
3	"Corolla rotate, caducous, lobes more or less equally cut into tube, fruit glabrous, succulent, white or coloured or more rarely dry, laterally compressed or conical"	5
4	"Corolla tube narrow cylindrical ca 1.5 mm broad, lobes forming a flattened limb oblique to or at right angles to the tube; vegetative parts extremely viscid, sickly sweetly smelling, corolla caducous; pollen sexine, reticulate"	"Glycocystis: Glycocystis beckeri"
4	"Corolla tube dilating distally at least 3 mm broad, lobes spreading not forming a limb, upper lip pair fused for most of length, anthers exserted; corolla persistent pollen sexine punctitegate"	Diocirea
5	"Dehisced anthers reniform"	Myoporum
5	"Dehisced anthers sagittate, the two portions not fully coalescing but joined by a narrow connective at apex"	Eremophila
6	"Corolla urceolate, persistent and dropping with enclosed fruit; filaments twisted, sickle-shaped; dehisced anthers prominently lobed on lower side"	"Calamphoreus: Calamphoreus inflatus"
6	"Corolla variable, rarely more or less urceolate, caducous; filaments straight or curved but not twisted; open anthers not lobed on lower side"	Eremophila
7	"Calyx not surrounding the flower; bracteoles absent; corolla with 4-lobed upper lip, the lower lip lacking"	Dischisma
7	"Calyx surrounding the flower, even when divided to base; bracteoles present or absent; corolla always lobed on lower side"	8
8	"Sepals free for more than half their length"	Verbascum
8	"Sepals fused for more than half their length"	"Zaluzianskya: Zaluzianskya divaricata"