Translator Disclaimer
5 February 2019 Chryselium, a New South American Genus Segregated from Helichrysum (Asteraceae, Gnaphalieae)*
Susana E. Freire, Estrella Urtubey
Author Affiliations +
Abstract

Chryselium Urtubey & S. E. Freire, a new monotypic genus, is here described and illustrated to accomodate one species that was initially placed in Helichrysum, H. gnaphalioides, as Chryselium gnaphalioides. The new genus, Chryselium, is a monoecious herb with single stems and terminal capitulescences that are densely glomerulate from the Tropical Andes of Venezuela, Colombia, Ecuador, Bolivia, and Peru. This genus differs fundamentally from Helichrysum by having a stoloniferous habit and corollas with purple apices. Amolecular analysis using DNA sequences from nuclear (ITS and ETS) markers placed this genus in a clade with Chevreulia, Cuatrecasasiella, Antennaria, and Diaperia in the FLAG group. Affinities of the new genus with genera previously assigned to Chryselium are also discussed.

© Copyright 2019 by the American Society of Plant Taxonomists
Susana E. Freire and Estrella Urtubey "Chryselium, a New South American Genus Segregated from Helichrysum (Asteraceae, Gnaphalieae)*," Systematic Botany 44(1), 233-242, (5 February 2019). https://doi.org/10.1600/036364419X698056
Published: 5 February 2019
JOURNAL ARTICLE
10 PAGES


Share
SHARE
KEYWORDS
Antennaria
Compositae
ETS
Gnaphalium
ITS
Leontopodium
Pseudognaphalium
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top