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- Title
Intercontinental distribution ofPlagiochila corrugata(Plagiochilaceae, Hepaticae) inferred from nrDNA ITS sequences and morphology.
- Authors
Heinrichs, Jochen; Groth, Henk; Lindner, Melanie; Renker, Carsten; Pócs, Tamás; Thomas Pröschold
- Abstract
Plagiochilasect.Vagaeis a large pantropical clade that is characterized morphologically by frequent terminal branching, vegetative distribution by propagules on the ventral surface of the leaves and a capsule wall with thickenings in all layers.Plagiochila corrugatafrom Brazil is characterized by strongly undulate, toothed leaf margins and represents the only known neotropical species of sect.Vagaewith unispiral elaters.Plagiochila cambuenafrom Madagascar is distinguished by the same features. Maximum likelihood and parsimony analyses of 38 nrDNA ITS sequences ofPlagiochilarevealP. corrugataandP. cambuenain a weakly (ML) to well (MP) supported monophyletic lineage withinP. sect. Vagae. As an outcome of the morphological and molecular investigation,P. cambuenais relegated to the synonymy ofP. corrugata. Plagiochila corrugatais placed in aVagae-subclade with 11 further American species. The range ofP. corrugatacan be ascribed to long-range dispersal from the Neotropics rather than a Gondwanan distribution. Species from tropical Asia and Africa are placed at the base of theVagaeclade. Branch length withinP. sect. Vagaepoints to a sudden radiation. © 2004 The Linnean Society of London,Botanical Journal of the Linnean Society, 2004,146, 469–481.
- Subjects
PLAGIOCHILACEAE; NUCLEOTIDE sequence; PLANT morphology; PLANT species; PHYTOGEOGRAPHY
- Publication
Botanical Journal of the Linnean Society, 2004, Vol 146, Issue 4, p469
- ISSN
0024-4074
- Publication type
Article
- DOI
10.1111/j.1095-8339.2004.00340.x