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Metacommunity process rather than continental tectonic history better explains geographically structured phylogenies in legumes.
Penalized likelihood estimated ages of both densely sampled intracontinental and sparsely sampled transcontinental crown clades in the legume family show a mostly Quaternary to Neogene age distribution, with young age estimates detected despite methodological approaches that bias results toward older ages. Expand
Phylogenetic relationships and taxonomy of subfamily Zygophylloideae (Zygophyllaceae) based on molecular and morphological data
Phylogenetic analysis of noncoding trnL plastid DNA sequences and morphological data for 43 species of Zygophylloideae, representing most of the morphological and geographical variation in the subfamily, indicates that the currently recognised genera Augea, Tetraena, and Fagonia are embedded inZygophyllum. Expand
Africa, the Odd Man Out: Molecular Biogeography of Dalbergioid Legumes (Fabaceae) Suggests Otherwise
A molecular biogeographic study in the legume family that suggests a vicariant biogeographical relationship between Africa and North America is presented, and is likely to be shown with additional phylogenetic analysis to be prevalent among legume groups and other taxa that diversified during the Tertiary in seasonally dry tropical vegetation. Expand
Leguminosae of Ethiopia
Family relationships of the enigmatic rosid generaBarbeya andDirachma from the Horn of Africa region
Molecular and morphological analyses indicate that Barbeya and Dirachma are closely related inter se as well as toRhamnaceae andElaeagnaceae, and it seems best to retain bothBarbeyaceae andDirachmaceae in their present circumscriptions, but in both cases in completely new positions in the angiosperm system. Expand
Phylogeny of the tribe Antirrhineae (Scrophulariaceae) based on morphological andndhF sequence data
It is concluded that hummingbirdpollination has evolved independently within Antirrhineae at least three times from bee-pollinated ancestors. Expand
Vigna (Leguminosae) sensu lato: the names and identities of the American segregate genera.
A molecular phylogenetic analysis was undertaken in the effort to resolve long-standing taxonomic questions centered on floral morphology and resolved six well-supported clades of American Vigna that are most closely related to other American genera. Expand
Phylogeny and taxonomy of Tribulocarpus (Aizoaceae) : A paraphyletic species and an adaptive shift from zoochorous trample burrs to anemochorous nuts
The phylogenetic position and circumscription of the disjunct African genus Tribulocarpus is investigated with DNA sequences from plastid rps16 and trnL­F, and nuclear ITS, and T. dimorphanthus is retrieved as paraphyletic with regard to T. retusus, endemic in Somalia. Expand
Forests and forest trees of northeast tropical Africa
Nine types of forest are described from this partially arid region of the Horn of Africa about the habitats and distribution of the tree species of these forests, as well as information about their dispersal and diaspore size. Expand
Phylogeny and generic delimitation in Molluginaceae, new pigment data in Caryophyllales, and the new family Corbichoniaceae
The circumscription of Molluginaceae has changed radically in recent years, with Corbichonia being moved to Lophiocarpaceae, Limeum to Limeaceae, Macarthuria to Macarthuriaceae and all species of HExpand