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- Title
Analysis of the cosmopolitan buckthorn genera Frangula and Rhamnus s.l. supports the description of a new genus, Ventia.
- Authors
Hauenschild, Frank; Favre, Adrien; Salazar, Gerardo A.; Muellner-Riehl, Alexandra N.
- Abstract
The taxonomy of the species-rich and widespread Rhamnus s.l. is partially unresolved. While Frangula is morphologically similar to Rhamnus but separate according to previous molecular studies, the delimitation of sections within Rhamnus s.str., including the large Rhamnus sect. Rhamnus, remains unclear. In order to clarify the taxonomy of Rhamnus, we present the largest molecular dataset available to date, including ITS and trnL-trnF sequences of 103 species, fasttree-like searches, maximum likelihood estimates and Bayesian analyses were performed and compared. Our results are congruent across all analyses and show that the current subdivision of Rhamnus s.l. should be extended from two (Frangula, Rhamnus) tofour distinct genera. First, we exclude six species from Rhamnus and attribute them to the new genus Ventia. Second, we raise the entire Rhamnus sect. Oreoherzogia to generic level. Finally, we confirm the monophyly of Rhamnus sect. Alaternus and R. sect. Rhamnus within Rhamnus s.str.
- Subjects
FRANGULA; LAXATIVES; PLANT extracts; RHAMNUS cathartica; BUCKTHORNS
- Publication
Taxon, 2016, Vol 65, Issue 1, p65
- ISSN
0040-0262
- Publication type
Article
- DOI
10.12705/651.5