Novitates neocaledonicae I: An additionnal new species of Planchonella (Sapotaceae) endemic to the Roches de la Ouaième

Munzinger, Jérôme

doi:10.11646/phytotaxa.201.1.5

Cited by 7 publications

(2 citation statements)

References 25 publications

(15 reference statements)

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“…The flora of New Caledonia remains incompletely known, and since 2000, one new species is described per month (Gâteblé et al 2018). Six years ago, the second author started the Novitates neocaledonicae series (Munzinger 2015), which aims to describe new species from the territory in a standardised way, including an illustration, a distribution map and a preliminary assessment according to IUCN criteria.…”

Section: Introductionmentioning

confidence: 99%

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2021

Phytotaxa

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Three endemic species of Xyris (Xyridaceae, Poales) are currently recognized in New Caledonia. A recent multivariate analysis of 18 morphological characters based on 129 specimens of Xyris from New Caledonia, supported by 10 anatomical and micromorphological observations, suggested that three species should be recognized in the New Caledonian archipelago. However, the three published names did not correspond to the three entities identified via the multivariate analyses. The results showed that Xyris neocaledonia Rendle was morphologically distinct but requires lectotypification, Xyris guillauminii Conert was indistinct from X. pancheri Rendle, and that a new morphologically distinct species required description. We therefore propose to clarify the taxonomy of the genus for New Caledonia, by designating a lectotype, making this synonymy and describing the new species. The new species, Xyris desquamatus J.R.Morel & Munzinger, sp. nov., has the remarkable feature of leaves that are shed as the plant senesces, and is reflected in the specific epithet for this new species. Line drawings are provided for the new species, along with colour photos for the three New Caledonian Xyris species and a distribution map. Three identification keys are provided, the first based on vegetative characters, the second on reproductive characters and the third on anatomical features of the leaf. Xyris desquamatus is preliminarily assigned an IUCN risk of extinction assessment of vulnerable.

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Section: Introductionmentioning

confidence: 99%

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2021

Phytotaxa

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“…Dubard (1912: 58) from Gatope, Leptostylis micrantha Beauvisage (1901: 88) from Art Island, and L. longiflora Bentham in Bentham & Hooker (1876: 659), also from Gatope (Bouchet et al 1995). Revision of the family for New Caledonia was clearly needed, a work we embarked on more than a decade ago, resulting in a new generic classification (Bartish et al 2005;Swenson et al 2007aSwenson et al , 2008Swenson et al , 2013Swenson et al , 2015 as well as 42 new species endemic for New Caledonia (Swenson et al 2007b(Swenson et al , 2010a(Swenson et al , 2010b(Swenson et al , 2010c(Swenson et al , 2012(Swenson et al , 2016, 2015Munzinger 2015).…”

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Pycnandra longiflora (Sapotaceae) a species believed to be extinct, rediscovered in New Caledonia

Munzinger¹,

Swenson

2016

Phytotaxa

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Pycnandra longiflora (Sapotaceae) belongs to the largest endemic genus in New Caledonia. It is only known from the type collection made in 1861-67 at the obscure locality "Gatope". Relocation of this species has been of high priority for more than a decade, but without success. Pycnandra longiflora was therefore recently declared extinct. However, a population was recently discovered near a mining site at Onajiele, in the Ouazangou-Taom massif, and it is revealed that P. longiflora has the most spectacular flowers in the entire genus, being large and bicoloured in red and yellow. A thorough description is here outlined and we propose a preliminary IUCN status as Critically Endangered.

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Five new species and a systematic synopsis of Pycnandra (Sapotaceae), the largest endemic genus in New Caledonia

Swenson

Munzinger

2016

Aust. Systematic Bot.

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Pycnandra Benth. (Sapotaceae) is the largest endemic genus in New Caledonia and is subdivided into six subgenera. An addition of five species are here described in four subgenera, viz. P. comptonioides Swenson & Munzinger, P. kouakouensis Swenson & Munzinger, P. montana Swenson & Munzinger, P. poindimiensis Swenson & Munzinger and P. versicolor Swenson & Munzinger. Another seven to nine taxa are discussed but remain undescribed owing to the lack of adequate collections (and may remain undescribed pending the interpretation of the Nagoya Protocol). Pycnandra is characterised by a non-areolate higher leaf venation, sepals glabrous on the inner surface, no staminodes, and a single-seeded fruit. The members occur in a wide range of habitats and most species have very specific substrate requirements, growing on ultramafic, non-ultramafic or calcareous substrates. Almost 40 species are restricted to ultramafic substrates and many are now at risk of extinction because of deforestation, deliberately set fires and mining. We provide a systematic synopsis with keys to subgenera and species, phenology, substrate preferences, altitudinal ranges and preliminary IUCN Red List assessments for all described taxa. Four of the five new species are assessed as Critically Endangered. Pycnandra versicolor is in urgent need of conservation management beacuse its entire distribution is inside an active mine on the Koniambo massif.

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Novitates neocaledonicae I: An additionnal new species of Planchonella (Sapotaceae) endemic to the Roches de la Ouaième

Cited by 7 publications

References 25 publications

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Pycnandra longiflora (Sapotaceae) a species believed to be extinct, rediscovered in New Caledonia

Five new species and a systematic synopsis of Pycnandra (Sapotaceae), the largest endemic genus in New Caledonia

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