The Taxonomic Significance of ducts in the corolla lobes of Vernonia (Vernonieae: Asteraceae)

The Taxonomic Significance of ducts in the corolla lobes of Vernonia (Vernonieae: Asteraceae)

The multiple longitudinal ducts in the corolla lobes found in the closely related genera Vernonia, Vernonanthura and Trepadonia are microscopically studied and illustrated. The lack of such ducts in the two South American species that have until now been retained in Vernonia indicates that they shou...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:PhytoKeys 2016-01, Vol.58 (58), p.1-7
Hauptverfasser: Robinson, Harold, Yankowski, Stanley
Format: Artikel
Sprache:eng
Schlagworte:
Asteraceae
corolla lobes
Ducts
Flowers
Genera
Identification and classification
Physiological aspects
Taxonomic significance
Trepadonia
Vernonanthura
Vernonia
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The multiple longitudinal ducts in the corolla lobes found in the closely related genera Vernonia, Vernonanthura and Trepadonia are microscopically studied and illustrated. The lack of such ducts in the two South American species that have until now been retained in Vernonia indicates that they should probably be excluded from the genus.
ISSN:1314-2011
1314-2003
DOI:10.3897/phytokeys.58.7009