Figure 5.

Parallel adaptive radiations in mean elevation and flower-tube length in Cyanea on the four major Hawaiian Islands. Width of the box reflects elevation of island up to the maximum (approx. 2000 m) invaded by most Cyanea species. Dots are colour coded to reflect phylogeny and species membership in the six major clades (inset at right) recognized by Givnish et al. (1995) using plastid restriction site variation; grey dots indicate species (many extinct) not included in that analysis. The six species groups are the Acuminata clade (green); the Hirtella clade (blue); the Solanaceae clade (gold); the Aculeatiflora clade (gold); the Hardyi clade (purple); and the Leptostegia clade (slate blue). The first four clades bear orange fruits and the latter two, purple fruits.