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- Publications
- Influence
Floral diversity and pollen transfer mechanisms in bird-pollinated Salvia species.
- P. Wester, R. Classen-Bockhoff
- Biology, Medicine
- Annals of botany
- 1 August 2007
BACKGROUND AND AIMS
Bird-pollinated (ornithophilous) Salvia species (sages) transfer pollen either by means of a staminal lever mechanism or by immovable stamens. As the distribution of the two modes… Expand
Pollination Syndromes of New World Salvia Species with Special Reference to Bird Pollination1
- Petra Wester, R. Classen-Bockhoff
- Biology
- 20 April 2011
Abstract The genus Salvia L. (Lamiaceae) encompasses about 1000 species, approximately two thirds of which are in the New World. Bees and birds are known as pollinators, but a more detailed analysis… Expand
Stamen Development in Salvia L.: Homology Reinvestigated
- R. Classen-Bockhoff, M. Crone, E. Baikova
- Biology
- International Journal of Plant Sciences
- 1 July 2004
The genus Salvia is characterized by lever‐like modified stamens. The hypothesis of homology is reinvestigated by referring to three different levels of positional homology: (1) the position of the… Expand
The staminal lever mechanism in Salvia L. (Lamiaceae): a key innovation for adaptive radiation?
- R. Classen-Bockhoff, T. Speck, E. Tweraser, P. Wester, S. Thimm, M. Reith
- Biology
- 2 September 2004
Abstract Floral key innovations play a significant role in the discussion of adaptive radiation in plants. The paper brings together a brief review of morphological key innovations in plants,… Expand
Pollination syndromes in African Marantaceae.
- A. Ley, R. Classen-Bockhoff
- Biology, Medicine
- Annals of botany
- 1 July 2009
BACKGROUND AND AIMS
The Marantaceae (550 spp.) is the most derived family in the order Zingiberales and exhibits a complex explosive pollination mechanism. To understand the evolutionary significance… Expand
Towards a new classification of Salvia s.l.: (re)establishing the genus Pleudia Raf.
- Maria Will, Natalie Schmalz, R. Classen-Bockhoff
- Biology
- 23 July 2015
Salvia L. In its traditional circumscription is the largest genus within the mint family. To date, the magnitude of the task has rendered it difficult to provide a genus-wide revision based on… Expand
Bilabiate flowers: the ultimate response to bees?
- C. Westerkamp, R. Classen-Bockhoff
- Biology, Medicine
- Annals of botany
- 1 August 2007
BACKGROUND AND AIMS
Bilabiate flowers have evolved in many lineages of the angiosperms, thus representing a convincing example of parallel evolution. Similar to keel blossoms, they have obviously… Expand
Towards an ontogenetic understanding of inflorescence diversity.
- R. Classen-Bockhoff, Kester Bull-Hereñu
- Medicine, Biology
- Annals of botany
- 1 November 2013
BACKGROUNDS AND AIMS
Conceptual and terminological conflicts in inflorescence morphology indicate a lack of understanding of the phenotypic diversity of inflorescences. In this study, an… Expand
Time to split Salvia s.l. (Lamiaceae) - New insights from Old World Salvia phylogeny.
- Maria Will, R. Classen-Bockhoff
- Biology, Medicine
- Molecular phylogenetics and evolution
- 1 April 2017
AIMS
Salvia L. is widely known as the largest genus in the mint family. A morphological modification of the androecium (lever-like stamens) was used to support this genus. However, molecular data… Expand
Hummingbird pollination in Salvia haenkei (Lamiaceae) lacking the typical lever mechanism
- P. Wester, R. Classen-Bockhoff
- Biology
- Plant Systematics and Evolution
- 30 January 2006
While in most Salvia species pollen is transferred by the `staminal lever mechanism', in some species the `levers' are inactive. This is also found in the bird pollinated S. haenkei from Bolivia. To… Expand