New Zealand Journal of Botany abstracts

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A new, dodecaploid species of Uncinia (Cyperaceae) from ultramafic rocks, Surville Cliffs, Northland, New Zealand

P. B. HEENAN

Landcare Research
P.O. Box 69
Lincoln, New Zealand

P. J. DE LANGE

Science and Research Unit
Department of Conservation
Private Bag 68908
Newton
Auckland, New Zealand

Abstract  A new species, Uncinia perplexa, is described from the Surville Cliffs, Northland, New Zealand. Uncinia perplexa has leaves 2-5 mm wide, 15-24 female florets per spike, the utricles are glabrous, ovate, and have a conspicuous beak, and the female glumes are membranous and deciduous. Uncinia perplexa occurs naturally only on ultramafic soils where it grows under Metrosideros excelsus forest. The chromosome number is 2n = 12x = 132, and this is a new number for Uncinia. Information is provided on the species habitat, distribution, abundance, and conservation status.

Keywords  Cyperaceae; Uncinia; Uncinia perplexa; ultramafic endemic; cytology; Northland; New Zealand flora

B00049
Received 20 November 2000; accepted 11 April 2001

New Zealand Journal of Botany, 2001, Vol. 39: 373-380

0028-825X/01/3903-0373 $7.00 (c) The Royal Society of New Zealand 2001

PDF file of entire paper: medium quality (3511K); (scanned from paper original: notes about this process)

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