New Zealand Journal of Botany abstract

Received 18 June 1997; accepted 10 October 1997

New Zealand Journal of Botany, 1998, Vol. 36: 41-51

0028-825X/98/3601-041 $7.00 (c) The Royal Society of New Zealand 1998

Montigena (Fabaceae), a new genus endemic to New Zealand

P. B. HEENAN

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

Abstract Montigena, a new monotypic genus, is distinguished from Swainsona by a strongly rhizomatous habit, terminal innovation shoots, stems with persistent pith, vessel elements with helical thickenings, well developed ray parenchyma, and slender and flexuose phloem fibres . A new combination Montigena novae-zelandiae replaces Swainsona novae-zelandiae as the name for this legume that is endemic to the dry eastern mountains of the South Island of New Zealand, where it grows on partially stable screes .

A botanical description is presented, followed by detailed notes on growth habit, rhizome anatomy,leaf anatomy, distribution, and habitats, with an assessment of conservation status .

Keywords Fabaceae ; Galegeae; Montigena; Montigena novae-zelandiae; Swainsona ; new genus; taxonomy ; New Zealand flora

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