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

Titelangaben

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. Bd. 102 (2017) Heft 3 . - S. 520-541.
ISSN 0026-6493
DOI: https://doi.org/10.3417/D-17-00002A

Abstract

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.

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Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER144005
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Pflanzensystematik
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Pflanzensystematik > Lehrstuhl Pflanzensystematik - Univ.-Prof. Dr. Sigrid Liede-Schumann
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
Eingestellt am: 09 Jan 2018 14:05
Letzte Änderung: 13 Apr 2018 10:00
URI: https://eref.uni-bayreuth.de/id/eprint/41233