New Zealand Journal of Botany abstracts
Argyrotegium, a new genus of Gnaphalieae (Compositae)
Josephine M. Ward
School of Biological Sciences
University of Canterbury
Private Bag 4800
Christchurch, New Zealand
Ilse Breitwieser
Allan Herbarium
Landcare Research
P.O. Box 69
Lincoln, New Zealand
Christina Flann
School of Botany
The University of Melbourne
Parkville, Victoria, Australia
Abstract Euchiton mackayi and E. nitidulus
lack the definitive characters of Euchiton, namely stolons and paired
papillae on the cypsela epidermis. A morphological comparison of species
of Euchiton from New Zealand and Australia, supplemented by published
data on other species and genera, demonstrates that E. fordianus,
E. mackayi, E. nitidulus, and E. poliochlorus are morphologically
distinct from the remainder of Euchiton and from all other genera
of Gnaphalieae. This is supported by published evidence from ITS sequences.
Euchiton fordianus, E. mackayi, E. nitidulus, and
E. poliochlorus are transferred to a new genus, Argyrotegium,
and new combinations are made.
Keywords Argyrotegium fordianum; Argyrotegium
mackayi; Argyrotegium nitidulum; Argyrotegium poliochlorum;
new genus; New Zealand; Australia; Compositae; Asteraceae; Gnaphalieae; Euchiton
fordianus; Euchiton mackayi; Euchiton nitidulus; Euchiton
poliochlorus
B02082; Received 16 December 2002; accepted 20 May 2003; online publication
date 26 November 2003
New Zealand Journal of Botany, 2003, Vol. 41: 603-611
0028-825X/03/4104-0603 $7.00 © The Royal Society of New Zealand
2003
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