Molecular phylogeny and historical biogeography of Caltha (Ranunculaceae) based on analyses of multiple nuclear and plastid sequences Towards the natural classification of tectarioid ferns: Confirming the phylogenetic relationships of Pleocnemia and Pteridrys (eupolypods I) Molecular phylogenetic analysis suggests paraphyly and early diversification of Philadelphus (Hydrangeaceae) in western North America: New insights into affinity with Carpenteria Historical biogeography of the Angelica group (Apiaceae tribe Selineae) inferred from analyses of nrDNA and cpDNA sequences Adding time-calibrated branch lengths to the Asteraceae supertree Phylogenetics and biogeography of eastern Asian-North American disjunct genus Pachysandra (Buxaceae) inferred from nucleotide sequences Phylogenetic biogeography and taxonomy of disjunctly distributed bryophytes Tracking character evolution and biogeographic history through time in Cornaceae - Does choice of methods matter? Divergence time estimates for major lineages of Cupressaceae (s. l.)