| 15(13) | Leaf margins irregularly lobed or cleft; Mo | 11 Cyanea dunbariae |
| 15 | Leaf margins callose-toothed, erose, entire or minutely serrulate | (15’) |
| 15’(15) | Leaf margins entire or minutely serrulate; calyx lobes lanceolate to linear, apex acute to acuminate; M | Cyanea kauaulaensis |
| 15’ | Leaf margins callose-toothed or erose | (16) |
| 16(15’) | Calyx lobes oblong, apex rounded and apiculate; Mo | 38 Cyanea profuga |
| 16 | Calyx lobes dentiform or triangular, apex acute to acuminate | (17) |