Multiple origin of the tropical forest tree family Icacinaceae.
- J. Kårehed
- BiologyAmerican-Eurasian journal of botany
- 1 December 2001
Analyses of DNA sequences from four genes and morphological data show that the members of the tropical forest tree family Icacinaceae do not have a common origin.
The phylogenetic utility of chloroplast and nuclear DNA markers and the phylogeny of the Rubiaceae tribe Spermacoceae.
- J. Kårehed, I. Groeninckx, S. Dessein, T. Motley, B. Bremer
- BiologyMolecular Phylogenetics and Evolution
- 1 December 2008
Phylogeny of the Herbaceous Tribe Spermacoceae (Rubiaceae) Based on Plastid DNA Data1
- I. Groeninckx, S. Dessein, E. Smets
- 28 April 2009
This study is the first to address phylogenetic relationships within Spermacoceae from a tribal perspective and provides a phylogenetic hypothesis with broad sampling across the major lineages of Spermcoceae that can be used to guide future species-level and generic studies.
The wood anatomy of the polyphyletic Icacinaceae s.l., and their relationships within asterids
- F. Lens, J. Kårehed, E. Smets
Maximum parsimony and Bayesian analyses using molecular data and combined anatomical-molecular data show that Icacinaceae s.str.
The family Pennantiaceae and its relationships to Apiales
- J. Kårehed
This thesis deals with evolutionary relationships within the asterids, a group of plants comprising about one-third of all flowering plants, and identifies two new families: Pennantiaceae and Stemonuraceae, which were formerly included in Icacinaceae.
Phylogeny of Hedyotis L. (Rubiaceae Spermacoceae) : Redefining a complex Asian-Pacific assemblage
- N. Wikström, S. Neupane, J. Kårehed, T. Motley, B. Bremer
- 1 April 2013
Bayesian phylogenetic analyses of Hedyotis are presented using plastid and nuclear sequence data to resolve monophyletic lineages, to test former taxonomic hypotheses, and to revise the taxa within a well-supported evolutionary framework.
An ethnobotanical study among the Maasai of the Loita Hills, Kenya
- J. Kårehed, Elisabet Odhult
Phyllopentas flava (Rubiaceae), a New Morphologically Heterodistylous and Functionally Dioecious Species from Madagascar
- Tefy H. Andriamihajarivo, S. Razafimandimbison, J. Kårehed
- Environmental Science, Biology
- 21 November 2011
This plant is restricted to the Itremo region in southeastern Madagascar and is distinct morphologically from the other species of the genus by its pubescent, narrowly ovate to narrowly elliptic leaves, grey-whitish and thickly hairy midribs and secondary veins on the lower surfaces of leaves, and functionally dioecious and heterodistylous flowers.
The systematics of Knoxieae (Rubiaceae)—molecular data and their taxonomic consequences
- J. Kårehed, B. Bremer
- 1 November 2007
A molecular phylogeny of the Knoxieae group is presented and the morphological support for the resulting groups and the taxonomic consequences of the phylogeny are discussed.
Evolution of the Australasian families Alseuosmiaceae, Argophyllaceae, and Phellinaceae
- J. Kårehed, J. Lundberg, B. Bremer, K. Bremer
- 1 October 1999
Based on results from cladistic analyses of morphology and DNA sequences (the two chlo- roplast genes rbcL and ndhF), the three Australasian families Alseuosmiaceae, Argophyllaceae, and Phelli-…