Figure 1From: Evolution of the intercontinental disjunctions in six continents in the Ampelopsis clade of the grape family (Vitaceae)Delimitation of the six areas for taxa in the Ampelopsis clade and the schematic models used in the Lagrange analyses. N = North America; A = eastern Asia; E = Europe to central Asia; F = Africa; S = South America; and U = Australia.Back to article page