Class
Order
Family
Classification
Nomenclature
Scientific Name:
Argyrotegium mackayi (Buchanan) J.M.Ward & Breitw. in Ward et al., New Zealand J. Bot. 41: 609 (2003)
Synonymy:
- ≡ Raoulia mackayi Buchanan, Trans. & Proc. New Zealand Inst. 14: 354, t. 34, f. 2 (1881 [1882]) – as Raoulia m'kayi
- ≡ Gnaphalium traversii var. mackayi (Buchanan) Kirk, Stud. Fl. New Zealand 299 (1899)
- ≡ Gnaphalium mackayi (Buchanan) Cockayne, Veg. N.Z. 439 (1928)
- ≡ Euchiton mackayi (Buchanan) Anderb., Opera Bot. 104: 167 (1991)
Description
Perennial with much-branched stems terminating in leafy rosettes and usually forming mats, 1–7 cm tall. Lvs mostly in basal rosettes; basal lvs cuneate to short petiole, densely white-tomentose on both surfaces including mid-vein but usually excluding petiole on upper, plane, elliptic to broad-elliptic or spathulate, usually obtuse, sometimes acute, mucronate, (3)–6–12–(20) × (2)–3–6 mm; cauline lvs 1-few, apetiolate, reduced upwards and becoming ovate-triangular to linear, amplexicaul and finally scalelike. Capitula c. 2–4 mm diam., usually solitary, very rarely 2 together; subtending lvs < capitula; scape terminal, simple, erect, amongst lvs at flowering, usually elongating somewhat at fruiting. Involucral bracts elliptic-oblong, obtuse to subacute, 4.5–6 mm long; stereome green or tinged reddish purple at apex; lamina pale brown, with darker band at base; gap and margins clear or tinged reddish purple. Achenes glabrous, c. 1.2 mm long.
[From: Webb et al. (1985) Flora of New Zealand. Volume 4 as Gnaphalium mackayi (Buchanan) Cockayne]
Biostatus
Indigenous (Non-endemic)
Bibliography
Anderberg, A. A. 1991: Taxonomy and phylogeny of the tribe Gnaphalieae (Asteraceae). Opera Botanica 104: 1–195.
Buchanan, J. 1882: On the alpine flora of New Zealand. Transactions and Proceedings of the New Zealand Institute 14: 342–356.
Cockayne, L. 1928: The Vegetation of New Zealand - Die Vegetation der Erde XIV. Edition 2. Engelmann Press, Leipzig.
Connor, H.E.; Edgar, E. 1987: Name changes in the indigenous New Zealand flora, 1960–1986 and Nomina Nova IV, 1983–1986. New Zealand Journal of Botany 25: 115–170. [as Gnaphalium mackayi (Buchanan) Cockayne]
de Lange, P.J.; Rolfe, J.R.; Barkla J.W.; Courtney, S.P.; Champion, P.D.; Perrie, L.R.; Beadel, S.N.; Ford, K.A.; Breitwieser, I.; Schönberger, I.; Hindmarsh-Walls, R.; Heenan, P.B.; Ladley, K. 2018: Conservation status of New Zealand indigenous vascular plants, 2017. New Zealand Threat Classification Series. No. 22. [Not Threatened]
de Lange, P.J.; Rolfe, J.R.; Champion, P.D.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Norton, D.A.; Hitchmough, R.A. 2013: Conservation status of New Zealand indigenous vascular plants, 2012. New Zealand Threat Classification Series 3. Department of Conservation, Wellington. [Not Threatened]
Drury, D. G. 1972: The Cluster and Solitary-headed Cudweeds Native to New Zealand: (Gnaphalium Section Euchiton-Compositae). New Zealand Journal of Botany 10: 112–179. [as Gnaphalium mackayi (Buchanan) Cockayne; Gnaphalium traversii var. mackayi (Buchanan) Kirk]
Kirk,T. 1899: The Students' Flora of New Zealand and the Outlying Islands. Government Printer, Wellington, N.Z.
Ward, J.M.; Breitwieser, I. 1998: New combinations in Euchiton (Compositae - Gnaphalieae) from New Zealand. New Zealand Journal of Botany 36(2): 303–304.
Ward, J.M.; Breitwieser, I.; Flann, C. 2003: Argyrotegium, a new genus of Gnaphalieae (Compositae). New Zealand Journal of Botany 41(4): 603–611.
