New Zealand Journal of Botany abstracts

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Morphological evidence for the tribal position of Haastia (Asteraceae)

Ilse Breitwieser

Allan Herbarium
Landcare Research
P.O. Box 69
Lincoln 8152, New Zealand

Josephine M. Ward

School of Biological Sciences
University of Canterbury
Private Bag 4800
Christchurch, New Zealand

Abstract  Haastia, an alpine genus of three species endemic to New Zealand, has been of uncertain tribal affiliation within the Asteraceae subfamily Asteroideae. On the basis of morphological evidence it has been variously assigned to Gnaphalieae and Astereae, split between tribes, and unassigned to a tribe. Here morphological characters that have been used to delimit tribes of Asteroideae are reviewed. These characters are described for Haastia and evidence for its tribal position is assessed. The weight of the evidence favours inclusion in Senecioneae and suggests affiliation to Brachyglottis. This is in accordance with recent phylogenetic analyses of ITS and 5′ trnK/matK intron sequences that place Haastia in a Senecioneae clade with Brachyglottis and allied genera.

Keywords  Haastia; Asteraceae; Compositae; Senecioneae; tribe; New Zealand; morphology

B05001; Received 5 January 2005; accepted 11 July 2005; Online publication date 16 September 2005
New Zealand Journal of Botany, 2005, Vol. 43: 767–777
0028–825X/05/4304–0767 © The Royal Society of New Zealand 2005

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