Threatened and uncommon plants of New Zealand

Evidence is provided for the first demonstrated example of allopolyploidy in the New Zealand fern flora. Cytological, morphological, and molecular (AFLP-DNA fingerprinting) analyses indicate that the fern previously known as Polystichum richardii constitutes an allopolyploid complex, in which four separate evolutionary lineages are present. These are here recognised as three taxonomic species, with one of these encompassing two subspecies. The two allooctoploid lineages are accommodated under the reinstated name P. neozelandicum, each as a separate subspecies: P. neozelandicum subsp. neozelandicum and the new combination P. neozelandicum subsp. zerophyllum. The new combination P. wawranum is made for one of the tetraploid lineages, while the name P. oculatum is reinstated for the other. Polystichum richardii is a later synonym of P. neozelandicum, and hence is not a legitimate name for any of the taxa recognised here.

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“…None is likely to merit listing within one of the risk categories of de Lange et al (1999). Polystichum wawranum and P. neozelandicum subsp.…”

Section: Conservationmentioning

confidence: 99%

Evidence for an allopolyploid complex in New ZealandPolystichum(Dryopteridaceae)

Perrie¹,

Brownsey

Lockhart

et al. 2003

New Zealand Journal of Botany

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“…This new list updates and supersedes all previous threatened vascular plant listings (Cameron et al 1993(Cameron et al ,1995de Lange et al 1999;Hitchmough 2002) for New Zealand and remains valid from the date of publication until the next list is published.…”

Section: Introductionmentioning

confidence: 63%

“…not be considered threatened (e.g., Amphibromus fluitans, Sebaea ovata). Initial information for this revision was gathered from the previous three listings of threatened, local, and uncommon plants (Cameron et al 1993(Cameron et al , 1995de Lange et al 1999), and Flora of New Zealand volumes I-V. This information was supplemented by public submissions and expert opinion regarding the conservation status of the New Zealand indigenous flora.…”

Section: Methodsmentioning

confidence: 99%

“…The last listing of New Zealand's threatened and uncommon vascular plants was conducted by the New Zealand Threatened Plant Committee in the late 1990s (de Lange et al 1999). Since that publication, the listing process used has been superseded by the development of a new threat classification system for all New Zealand taxa (Molloy et al 2002).…”

Section: Introductionmentioning

confidence: 99%

“…This panel comprised some members of the former New Zealand Threatened Plant committee (de Lange et al 1999) plus appointed representatives from the Department of Conservation, universities, and crown research institutes (see authorship list for this paper). In accordance with agreements reached between the New Zealand Botanical Society Committee, which was responsible for the functions of the former New Zealand Threatened Plant Committee, and the Department of Conservation (Rogan 2002), this paper continues the process of reporting, through peer-reviewed literature, the results of this assessment.…”

Section: Introductionmentioning

confidence: 99%

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Threatened and uncommon plants of New Zealand

Lange¹,

Norton

Heenan

et al. 2004

New Zealand Journal of Botany

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114

104

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A reappraisal of the conservation status of the indigenous New Zealand vascular plant flora is presented. The list comprises 792 taxa (34% of New Zealand's total indigenous vascular flora) in the following categories: Extinct 4 taxa, Acutely Threatened 122 taxa (comprising 47 taxa Nationally Critical, 54 Nationally Endangered, 21 Nationally Vulnerable), Chronically Threatened 96 taxa (comprising Serious Decline 26 taxa, Gradual Decline 70 taxa), At Risk 499 taxa (comprising Sparse 126 taxa, Range Restricted 373 taxa), Non-resident Native 26 taxa (comprising Vagrant 16 taxa, Colonist 10 taxa), and Data Deficient 45 taxa. A further 208 plants are listed as Taxonomically Indeterminate, being those which might warrant further conservation attention once their taxonomic status is clarified. A further 31 named taxa and 18 rated as Taxonomically Indeterminate, and previously considered to be threatened and/or uncommon, are removed from this updated listing. A concordance of plant names is provided. The lists presented use a new threat classification system developed by the New Zealand Department of Conservation for sole use within this country. This paper represents the first time the entire known indigenous vascular flora has been assessed from a conservation perspective since the mid 1970s. A brief analysis of the patterns of rarity exhibited by the taxa listed is presented.

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Consequences of Alien N2-Fixers on Vegetation Succession in New Zealand

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Threatened and uncommon plants of New Zealand

Cited by 89 publications

References 43 publications

Evidence for an allopolyploid complex in New ZealandPolystichum(Dryopteridaceae)

Evidence for an allopolyploid complex in New ZealandPolystichum(Dryopteridaceae)

Threatened and uncommon plants of New Zealand

Consequences of Alien N2-Fixers on Vegetation Succession in New Zealand

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