Ascarina lucida var. lanceolata
Kermadec Islands Hutu
Current Conservation Status
2012 - At Risk - Naturally Uncommon
Conservation status of New Zealand indigenous vascular plants, 2012
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2012 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2009 and replaces all previous NZTCS lists for vascular plants. Authors: Peter J. de Lange, Jeremy R. Rolfe, Paul D. Champion, Shannel P. Courtney, Peter B. Heenan, John W. Barkla, Ewen K. Cameron, David A. Norton and Rodney A. Hitchmough. File size: 792KB
Previous Conservation Status
2009 - At Risk - Naturally Uncommon
2004 - Not Threatened
2012 - IE, OL
2009 - IE, OL
Ascarina lucida var. lanceolata (Hook.f.) Allan
Small bushy tree of upland Kermadec Islands. Leaves narrow and tapering to a narrow tip and with coarse black-tipped teeth on margins. Flowers in clusters of spikes. Fruit small, white.
Vascular - Native
The National Vegetation Survey (NVS) Databank
is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
Dicotyledonous Trees & Shrubs
Ascarina lanceolata Hook.f.
Endemic. Kermadec Islands, Raoul Island only.
One of the characteristic trees of the wet forests of Raoul Island which are mostly found above 245m. However, in the ravines this tree may extend down to almost sea level. In the wet forest it is mostly a subcanopy tree which co-associates with Coprosma acutifolia, Pseudopanax kermadecensis, Melicytus aff. ramiflorus and on occasion Boehmeria australis subsp. dealbata. Occasionally, such as on the ridge lines and crater rim it may form part of the forest canopy.
Glabrous gynodioecious tree up to 15 m tall. Trunk up to 500 mm diameter. Bark greyish-white. Branchlets slender, striate, initially pale green maturing dark green to emerald green. Interpetiolar stipules conspicuous, comprising 3 1.2-2.6 mm long pale pink to red, filaments; these connate near base, behind which are 3-6 smaller hyaline filaments. Petioles up to 15-20 mm long, lamina subcoriacous, somewhat fleshy, 50-100 × 10-30 mm, green, emerald green to dark green above, paler beneath, serrations weakly pigmented, pink to pale maroon often fading into pale pink spotting, narrowly lanceolate, lanceolate, lanceolate- oblong to narrowly elliptic, acuminate to acute. Inflorescences spicate comprising female or mixed male and female spikes on separated trees; spikes congested, oppositely arranged, solitary or rather closely branched up to 5 times, branches up to 30 mm long. Flowers alternate, sessile, subtended by 4 green, 0.8-1.0 mm long, entire, deltoid to broadly ovate, acute bracts (apex pink or doted with pink). Male flowers with one anther 2.0-3.0 mm long. Female flower smaller, solitary or 2-3 together located between anther and stem; stigma broad, sessile, ovary sessile. Fruit 3.0-2.0 mm long, broadly ovoid, fleshy, white and maroon-blotched or maroon-striped, subcylindric drupe.
Ascarina lucida var. lucida of the North and South Islands is New Zealand is clearly related. It differs from A. lucida var. lanceolata by the dark purple stems; by the 3 simple, conspicuous, reddish-purple filamentous stipules which lack fused bases; smaller, yellow-green leaves with purple-black or dark maroon pigmented serrations; more openly branched inflorescences with less congested flowers, and white drupes. Ascarina lucida var. lucida seems to be monoecious while A. lucida var. lanceolata appears to be gynodioecious - but this aspect needs further study.
July - December
Green,Red / Pink
January - August
Easy from cuttings and fresh seed but rather cold sensitive. In ideal conditions, and given time this variety can form a very large, spreading tree.
Naturally Uncommon. A locally abundant tree of the wetter forest and ravine vegetaton on Raoul. It is listed only because of its natural geographic restriction to a single island.
2n = 26
Fact Sheet prepared for NZPCN by P.J. de Lange 1 January 2010. Description by P.J. de Lange based on cultivated plants, herbarium and fresh specimens.
This page last updated on 6 Dec 2014