| Autor: |
Schmidt-Lebuhn, Alexander N., Bruhl, Jeremy J., Telford, Ian R.H., Wilson, Paul G. |
| Zdroj: |
Taxon; March 2015, Vol. 64 Issue: 1 p96-109, 14p |
| Abstrakt: |
A molecular phylogeny of selected Australian native Gnaphalieae (Asteraceae) is inferred from nuclear ribosomal ETS and ITS and chloroplast matK‐psbA, psbA‐trnHand ycf6‐psbMsequences to test the reciprocal monophyly of the genera Coronidiumand Xerochrysumand to taxonomically place several species currently treated as part of Helichrysum. Ribosomal and chloroplast phylogenies are topologically incongruent, but the latter are poorly resolved and poorly supported. Ribosomal and total evidence data suggest that the C. scorpioidesgroup makes Coronidiumin its current circumscription polyphyletic. Even without this species group, remaining Coronidiumis inferred to be paraphyletic to Xerochrysum. Helichrysum macranthumand H. milliganiare shown to be part of Xerochrysumand formally transferred to that genus. A lectotype is designated for H. milliganii. Helichrysum leucopsideumis shown to be affiliated with C. adenophorumand C. waddelliaewhile H. rutidolepisis confirmed to be part of the C. scorpioidesgroup. In contrast, the affiliations of H. calvertianum, H. oligochaetumand H. pumilumcannot currently be resolved with confidence. |
| Databáze: |
Supplemental Index |
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