Generic boundaries of Leucochrysum and Waitzia (Asteraceae: Gnaphalieae)

Weber, Xénia A.; Schmidt‐Lebuhn, Alexander N.

doi:10.1071/sb15017

Cited by 9 publications

(5 citation statements)

References 21 publications

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“…; Figure 4), but the affinities of the Coronidium scorpioides group are still unclear. One species of Leucochr ysum was found to be sister to Waitzia, which was not recognized previously because Watzia had been defined by the beak of the cypsela (Weber & Schmidt-Lebuhn, 2015). It is to be expected that similar results will be obtained from phylogenetic analyses of other genera.…”

Section: Gnaphalieaementioning

confidence: 57%

Daisies Down Under: Review of the state of taxonomy and phylogenetics of native Australian Asteraceae

Schmidt‐Lebuhn¹

2022

TICA

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Section: Gnaphalieaementioning

confidence: 57%

Daisies Down Under: Review of the state of taxonomy and phylogenetics of native Australian Asteraceae

Schmidt‐Lebuhn¹

2022

TICA

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“…Paul G.Wilson, which differs from members of Waitzia J.C.Wendl. only in the plesiomorphy of lacking a beak on the cypsela (Weber and Schmidt-Lebuhn 2015).…”

Section: Resultsmentioning

confidence: 99%

Transfer of Cotula alpina to the genus Leptinella (Asteraceae: Anthemideae)

Schmidt-Lebuhn,

Grealy

2024

Aust. Syst. Bot.

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Tribe Anthemideae (Asteraceae) is represented in Australia by only nine indigenous species of Cotula and Leptinella. The generic placement of Cotula alpina (Hook.f.) Hook.f. is considered problematic, because it shares the stoloniferous and scapose habit of Leptinella, but lacks corollas in female florets, a trait traditionally considered defining of Cotula. A previous phylogenetic analysis of Leptinella using ITS and chloroplast data showed that the species nested in that genus, but some uncertainty remained because of incomplete sequence data and missing cytological information, and no taxonomic change was made. Here, we use target-capture data from three different sequencing initiatives to reconstruct a phylogeny of Australian native and introduced Anthemideae to resolve this outstanding question. We confirm previous results with a high degree of support and formally transfer Cotula alpina to the genus Leptinella. A lectotype is selected for the basionym, Ctenosperma alpinum Hook.f.

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“…ex DC.) Paul G.Wilson and Waitzia J.C.Wendl., albeit with reduced sampling of Xerochrysum and Coronidium (Weber & Schmidt‐Lebuhn, 2015).…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic relationships of Xerochrysum, Coronidium and Helichrysum leucopsideum reveal a new genus, Leucozoma (Asteraceae: Gnaphalieae)

Collins

Bruhl

Andrew

et al. 2022

TAXON

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We gathered morphological data and genome‐wide single nucleotide polymorphisms to infer the evolutionary relationships of Xerochrysum, Coronidium, and Helichrysum leucopsideum, and to test the circumscription of the genera. SVDquartets species tree topology resolved relationships between the genera and within subsets of the Xerochrysum data. Results corroborated previous conclusions that Coronidium is non‐monophyletic as presently circumscribed and forms, in addition to the more distantly related Coronidium scorpioides group, three morphologically distinct clades. SVDquartets returned two clades in Xerochrysum, though species‐level relationships were unclear. Bayesian coalescent analysis using SNAPP produced tree topologies for the three clades of Coronidium with most species‐level relationships well resolved. The new genus Leucozoma is described for seven taxa previously included in Coronidium. A revised description of Coronidium and images of phyllary and fruit diagnostic morphological characters are provided.

show abstract

Generic boundaries of Leucochrysum and Waitzia (Asteraceae: Gnaphalieae)

Cited by 9 publications

References 21 publications

Daisies Down Under: Review of the state of taxonomy and phylogenetics of native Australian Asteraceae

Daisies Down Under: Review of the state of taxonomy and phylogenetics of native Australian Asteraceae

Transfer of Cotula alpina to the genus Leptinella (Asteraceae: Anthemideae)

Phylogenetic relationships of Xerochrysum, Coronidium and Helichrysum leucopsideum reveal a new genus, Leucozoma (Asteraceae: Gnaphalieae)

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