Tidskrift: Plant Systematics and Evolution
Volym: 207
Sidor: 225-254

Abstrakt: (på engelska)

The rbcL gene of 15 taxa was sequenced and analyzed cladistically together with a large sample of genera representing all main clades of the subclass Asteridae in order to determine more precisely the delimitation of the order Dipsacales and to elucidate the phylogeny of the families within the order. The cladistic analyses show that the Dipsacales comprise the families Caprifoliaceae, Morinaceae, Dipsacaceae, and VaIerianaceae including Triplostegia. The results also provide a basis for the exclusion of a number of taxa previously placed in the Dipsacales, such as Desfontainia, Columellia and Adoxaceae s. 1. (including Sambucus and Viburnum). Ever since the order Dipsacales was first suggested by Dumortier (1829) and the similar Caprifoliales by Lindley (1833, 1836), there has been confusion concerning the circumscription of the order, the relations between the included families, their circumscriptions, and the position of the order in a larger context.