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Registros recuperados: 12
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A new section in Nepenthes (Nepenthaceae) and a new species from Sulawesi Naturalis
Cheek, M.; Jebb, M..
Nepenthes section Tentaculatae of Borneo and Sulawesi is described and delimited, with a key to the nine species, including N. maryae of Central Sulawesi, Indonesia, which is here assessed as Vulnerable under criterion D2 using the 2001 IUCN standard. It is hypothesised that this species might trap insects using a ‘flick of the lid’ mechanism.
Tipo: Article / Letter to the editor Palavras-chave: Carnivorous plants; Conservation; ‘flick of the lid’; Nepenthes; Sulawesi.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/607403
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A synoptic revision of Inversodicraea (Podostemaceae) Naturalis
Cheek, M.; Feika, A.; Lebbie, A.; Goyder, D.; Tchiengue, B.; Sene, O.; Tchouto, P.; Burgt, X. van der.
Six new species of Inversodicraea (I. feika from Sierra Leone, I. liberia from Liberia, and I. ebo, I. eladii, I. tchoutoi, and I. xanderi from Cameroon) are described as new to science in the context of a synoptic revision of this African genus, now comprising 30 species, including I. cussetiana comb. nov., newly transferred from Macropodiella. Inversodicraea is now equal in number of species to Ledermanniella (as redefined), as the largest genus of the family in Africa. Terete or slightly dorsiventrally flattened leaf petioles (not sheathing and/or stipulate) are newly discovered to distinguish the genus from Ledermanniella, in addition to the presence of scale-leaves. Inversodicraea boumiensis, I. annithomae, and I. bosii are redelimited in this paper....
Tipo: Article / Letter to the editor Palavras-chave: Conservation; Extinction risk; Hybridisation; Hydroelectric dam projects; Rheophytes; Stage-dependent heteromorphy.
Ano: 2017 URL: http://www.repository.naturalis.nl/record/636690
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Expansion of the Nepenthes alata group (Nepenthaceae), Philippines, and descriptions of three new species Naturalis
Cheek, M.; Jebb, M..
Three new species in the Nepenthes alata group from the Philippines, Nepenthes armin, N. tboli and N. zygon, are described and assessed as threatened using the IUCN 2012 standard. The group is expanded by the inclusion of N. truncata and N. robcantleyi, previously included in the N. regiae group. A key to the nineteen species of the group is presented.
Tipo: Article / Letter to the editor Palavras-chave: Conservation; IUCN; Mining; Nepenthes; Philippines; Taxonomy; Ultramafic.
Ano: 2014 URL: http://www.repository.naturalis.nl/record/525882
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Nepenthes minima (Nepenthaceae), a new pyrophytic grassland species from Sulawesi, Indonesia Naturalis
Cheek, M.; Jebb, M.H.P..
Nepenthes minima is the first known pyrophytic grassland Nepenthes species from outside Indochina and the Philippines. A member of the sect. Regiae (Borneo, Wallacea, New Guinea) it is restricted to the highland grasslands of Central Sulawesi (Celebes) and has close affinities with Nepenthes maxima. The existence of Nepenthes minima, unique to these grasslands, suggests that they may be natural and predate the human influences that expanded them beginning 2000–3000 BP.
Tipo: Article / Letter to the editor Palavras-chave: Carnivorous plants; Fire; Nepenthes; Pyrophyte; Regiae; Sulawesi grasslands.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/617907
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Nepenthes (Nepenthaceae) of Halmahera, Indonesia Naturalis
Cheek, M..
Two new paniculate species of Nepenthes, N. halmahera and N. weda, both allied to N. danseri Jebb & Cheek, are described respectively from lowland and lower montane forest on ultramafic substrate. Nepenthes weda appears to be unique in the genus due to the adaxial tepal surfaces which in the distal portion are hairy and lack nectar glands. This species is also unique among paniculate members of the genus in its forward-facing, concave subapical lid appendage. Both species are currently only known from the Weda Bay Nickel Project concession area in Halmahera, Indonesia, and are assessed as Critically Endangered using the 2012 IUCN standard. Two character states are formally described and named for the first time in Nepenthes: nanophyll rosettes and...
Tipo: Article / Letter to the editor Palavras-chave: Character state; Critically endangered; Mining; Ultramafic; Weda Bay Nickel Project.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/578430
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Nepenthes samar (Nepenthaceae), a new species from Samar, Philippines Naturalis
Cheek, M.; Jebb, M..
Nepenthes samar is described from the island of Samar in the Visayas of the Philippines. Similar to N. merrilliana of Mindanao, it is distinguished on foliar and floral characteristics and assessed as Critically Endangered using the IUCN 2001 standard.
Tipo: Article / Letter to the editor Palavras-chave: Conservation; Nepenthes; Philippines; Samar; Visayas.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/526205
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Nepenthes section Insignes in Indonesia, with two new species Naturalis
Cheek, M.; Jebb, M.; Murphy, B.; Mambor, F..
A review of new data relating to Nepenthes insignis in Indonesia indicates that three taxa in section Insignes, not one, are present in New Guinea. One of these, endemic to the limestone of the island of Biak, is formally named as Nepenthes biak and assessed as Critically Endangered; the other, from limestone of the Raja Ampat islands is provisionally distinguished as Nepenthes sp. Raja Ampat, since only images are available.
Tipo: Article / Letter to the editor Palavras-chave: Biak; Critically Endangered; Endemic; Limestone; Papua Barat; Raja Ampat.
Ano: 2018 URL: http://www.repository.naturalis.nl/record/642610
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Nepenthes ultra (Nepenthaceae), a new species from Luzon, Philippines Naturalis
Cheek, M.; Jebb, M..
Nepenthes ultra is described from low altitude, ultramafic coastal scrub in Luzon, Philippines. It is placed in the Nepenthes alata group and is assessed as Endangered using the IUCN 2001 standard. Open cast mining and touristic development are threats to this species.
Tipo: Article / Letter to the editor Palavras-chave: Conservation; Luzon; Nepenthes; Philippines; Ultramafic.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/524739
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Notes on the plant endemics of the quartzitic slopes of Mt Chimanimani (Mozambique & Zimbabwe), and a new, Critically Endangered species, Empogona jenniferae (Rubiaceae-Coffeeae) Naturalis
Cheek, M.; Chipanga, H.; Darbyshire, I..
Empogona jenniferae is described from the upper quartzitic slopes of Mt Chimanimani on both sides of the Zimbabwe-Mozambique border, a prospective Tropical Important Plant Area. Its conservation status is assessed as Critically Endangered under the 2012 IUCN criteria. A figure and notes on the endemic plant species of Chimanimani are provided. Two additional names in Empogona, E. congesta and E. congesta subsp. chasei are published.
Tipo: Article / Letter to the editor Palavras-chave: Conservation; New combinations; TIPA; Tricalysia; Tropical Important Plant Area.
Ano: 2018 URL: http://www.repository.naturalis.nl/record/655270
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Seringia (Byttneriaceae / Malvaceae-Byttnerioideae) new to Southeast Asia and S. botak endangered in Indonesian New Guinea grassland and savannah Naturalis
Cheek, M.; Wanma, J.; Jitmau, M.; Jebb, M..
Seringia botak Cheek sp. nov., based on a collection made by the authors in 2017, is described from metalliferous grassland and savannah habitats in Indonesian New Guinea. Initially this appeared to be the first verified record of Seringia from SE Asia and to extend the range of the genus c. 1500 km further north than the previously recorded northern limit in Northern Territory, Australia. Further research, however, showed two previous specimens of the taxon from New Guinea, which had been overlooked. The extinction risk of Seringia botak is assessed as Endangered using the IUCN 2016 standard.
Tipo: Article / Letter to the editor Palavras-chave: Bomberai; Gunung Botak; Nickeliferous; Seedbank; Tangguh LNG Project.
Ano: 2018 URL: http://www.repository.naturalis.nl/record/666350
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Ternstroemia cameroonensis (Ternstroemiaceae), a new medicinally important species of montane tree, nearly extinct in the Highlands of Cameroon Naturalis
Cheek, M.; Tchiengue, B.; Tacham, W.N..
Ternstroemia cameroonensis sp. nov. (Ternstroemiaceae) is formally described from the Highlands of Cameroon and its conservation status is assessed as Critically Endangered using the IUCN 2012 standard. This is the third species of Ternstroemia known from Africa. The species is unusual in its genus in being monoecious, having Terminalia-branching (Aubreville’s model), phyllotaxy of 1/3 (not pseudo-verticillate), flowers with a uniseriate androecium and a distinct intra-staminal disc, and in the stamens lacking a distinct apicular connective. The species is used locally for extensive medicinal purposes.
Tipo: Article / Letter to the editor Palavras-chave: Cloud Forest; Critically Endangered; Medicinal plant; Pentaphylacaceae; Theaceae.
Ano: 2017 URL: http://www.repository.naturalis.nl/record/626072
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Two new African species of Salacia (Salacioideae, Celastraceae) Naturalis
Gosline, G.; Cheek, M..
Two new African species of Salacia (Salacioideae, Celastraceae) are described. Salacia arenicola is a scandent shrub endemic to a restricted white sand habitat in coastal Republic of Congo. It is assessed as IUCN 2012 category Vulnerable (VU). Salacia nigra is an erect shrub or small tree with dark purple flowers and large leaves found in the wet coastal forests of Cameroon and Nigeria and is also assessed as Vulnerable. A key to nonlianescent tropical African Salacias is given.
Tipo: Article / Letter to the editor Palavras-chave: Africa; Cameroon; Celastraceae; Congo (Brazzaville); Conservation; Primate-dispersed; Salacia; White sand.
Ano: 2014 URL: http://www.repository.naturalis.nl/record/525198
Registros recuperados: 12
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