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Systematics of Prestonia (Apocynaceae: Apocynoids: Echiteae) 80 years after Woodson

Title data

Morales, Juan F. ; Endress, Mary E. ; Liede-Schumann, Sigrid:
Systematics of Prestonia (Apocynaceae: Apocynoids: Echiteae) 80 years after Woodson.
In: Annals of the Missouri Botanical Garden. Vol. 102 (2017) Issue 3 . - pp. 520-541.
ISSN 0026-6493
DOI: https://doi.org/10.3417/D-17-00002A

Abstract in another language

Prestonia R. Br. (apocynoids, Echiteae) comprises ca. 58 species, which are lianas with eglandular leaves, axillary or terminal cymose inflorescences, sepals with a single colleter, flowers usually with an annular corona around the mouth and/or free corona lobes, follicular fruits, and truncate seeds that are comose at themicropylar end. Three infrageneric classifications have been proposed in the last 110 years, all of them based only on morphological characters and none of which have been tested with molecular data. In the present study, based on the analyses of 62 nuclear and 258 chloroplast sequences from 65 species, we test the monophyly of Prestonia as well as the infrageneric classifications proposed for the genus. Prestonia was shown to be monophyletic, but the infrageneric sections proposed by Schumann, Woodson, and Pichon are all non-monophyletic. We propose a new infrageneric classification for Prestonia, recognizing six sections: Coalitae Woodson, Denticulatae J. F. Morales, M. E. Endress & Liede, Exsertae J. F. Morales, M. E. Endress & Liede, Haemadictyon (Lindl.) Baill., Mollis J. F. Morales, M. E. Endress & Liede, and Prestonia. A key to the sections is provided. Prestonia pickelii Markgr. is removed from the synonymy of P. quinquangularis (Jacq.) Spreng. and resurrected as an accepted species. We provide a brief overview of the prolific groundbreaking work of Robert E. Woodson and Marcel Pichon in the Apocynaceae and Prestonia, and respectfully pay homage to their invaluable contributions to our knowledge of the family.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER144005
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Systematics
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Systematics > Chair Plant Systematics - Univ.-Prof. Dr. Sigrid Liede-Schumann
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 09 Jan 2018 14:05
Last Modified: 13 Apr 2018 10:00
URI: https://eref.uni-bayreuth.de/id/eprint/41233