New Zealand Journal of Botany abstract

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Parsonsia praeruptis (Apocynaceae): a new threatened, ultramafic endemic from North Cape, New Zealand

M. J. HEADS

Department of Conservation
P.O. Box 842
Whangarei, New Zealand

Present address: Science Faculty, University of Goroka, P.O. Box 1078, Goroka E.H.P., Papua New Guinea.

P. J. de LANGE

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

Abstract  Parsonsia praeruptis is described from the Surville Cliffs, North Cape. It differs from the widespread New Zealand species P. capsularis by its non-twining, non-climbing habit, shorter, ovate leaves with a subcordate base, smaller inflorescences, and glabrous calyx lobes. P. praeruptis is an ultramafic endemic and has a total range of less than 120 ha. Its conservation status is assessed as "Rare" because of threats from browsing animals and weeds. A key to New Zealand species of Parsonsia is provided.

Keywords  Apocynaceae; Parsonsia; Parsonsia praeruptis; new species; Surville Cliffs, North Cape; ultramafic endemic; New Zealand flora

B98009
Received 4 February 1998; accepted 4 June 1998

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