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- Title
Cryptic speciation inHerbertus(Herbertaceae, Jungermanniopsida): Range and morphology ofHerbertus sendtneriinferred from nrITS sequences.
- Authors
Feldberg, K.; Groth, H.; Wilson, R.; Schäfer-Verwimp, A.; Heinrichs, J.
- Abstract
Maximum likelihood and parsimony analyses of nrITS1-5.8S-ITS2 sequences place AustrianHerbertus sendtneriin a well bootstrap supported clade withHerbertus azoricusand Neotropical accessions which were alternatively assigned toHerbertus subdentatusorHerbertus dicranus. Asian and AfricanHerbertus dicranusform a separate lineage which is placed sister to several EuropeanHerbertustaxa.Herbertus borealisfrom the British Isles is placed sister toH.stramineusin a robust sister relationship, indicating that the species does not belong in the synonymy ofH. dicranus. As a result of the molecular investigation, the range ofHerbertus sendtneriis extended to the Neotropics andH. azoricusis placed into the synonymy ofH. sendtneri. Without much doubt,Herbertusdicranusdoes not occur in tropical America. Morphologically,H. sendtneriandH. dicranuscan at most be separated by weak tendencies.Herbertus sendtneriis characterized by the frequent occurrence of coarse appendages at the leaf margins and often completely papillose leaves.H. dicranusoften has small appendages and a nearly smooth basal leaf half.Herbertus borealis, which is nonmonophyletic withH. dicranusin the molecular trees, cannot be separated morphologically from forms ofH. dicranuswith small appendages.Herbertus subdentatusis not identical withH. sendtneri. Morphological homoplasy and cryptic speciation are obviously common inHerbertus.
- Subjects
HOMOPLASY; COMPARATIVE anatomy; BIOLOGICAL evolution; MORPHOLOGY; SPECIES; BIOLOGICAL classification
- Publication
Plant Systematics & Evolution, 2004, Vol 249, Issue 3/4, p247
- ISSN
0378-2697
- Publication type
Article
- DOI
10.1007/s00606-004-0221-4