Phylogeography of the European rock rose Helianthemum nummularium (Cistaceae): incongruent patterns of differentiation in plastid DNA and morphology
Helianthemum nummularium is a morphologically variable species that has been subdivided into several subspecies based on indumentum characters. We investigated four of these subspecies for variation in plastid DNA and leaf and petal shape in Europe. Three size-variable mononucleotide repeat regions were amplified by means of species-specific primers and 18 combined haplotypes were identified. The