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Registros recuperados: 10
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Monograph of African Costaceae Naturalis
Maas-van de Kamer, H.; Maas, P.J.M.; Wieringa, J.J.; Specht, C.D..
A taxonomic revision of the African genera of Costaceae (Costus and Paracostus) is given. Within the genus Costus 24 species are recognized, 8 of which are here described as new and one is given a new name. Included are chapters on the history of the taxonomy of the family, morphology, flower biology, pollination, dispersal, distribution, ecology, phylogeny and molecular studies and conservation. The species treatments include descriptions, full synonymy, geographical and ecological notes and taxonomic notes. For all species distribution maps are provided. A complete identification list with all exsiccatae studied and an index to scientific names is included at the end.
Tipo: Article / Letter to the editor Palavras-chave: Africa; Costus; History; Morphology; Paracostus; Phylogeny; Taxonomy.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/621671
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Revision of the Neotropical genus Sapranthus (Annonaceae) Naturalis
Schatz,, G.E.; Maas, P.J.M.; Maas-van de Kamer, H.; Westra, L.Y.T.; Wieringa, J.J..
A taxonomic revision of the genus Sapranthus is presented. Within the genus Sapranthus 8 species are recognized, 2 of which are new. Distinguishing morphological characteristics are discussed, and a dichotomous key to all species is given. The species treatments include descriptions, full synonymy, geographical and ecological notes, vernacular names, and taxonomic notes. Distribution maps are presented of all species, and a complete identification list of exsiccatae examined is included.
Tipo: Article / Letter to the editor Palavras-chave: Annonaceae; Descriptions; Morphology; Neotropics; Phylogeny; Sapranthus; Taxonomy; Vernacular names.
Ano: 2018 URL: http://www.repository.naturalis.nl/record/652490
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Taxonomic novelties in the genus Campylospermum (Ochnaceae) Naturalis
Bissiengou, P.; Chatrou, L.W.; Wieringa, J.J.; Sosef, M.S.M..
Four new species, one with two subspecies, of the genus Campylospermum are described, all endemic or sub-endemic to Gabon. These are C. auriculatum, C. gabonensis, C. gabonensis subsp. australis, C. glaucifolium and C. occidentalis. Distribution maps and scans of the holotypes are provided as well as preliminary IUCN Red List assessments. New combinations for nine species formerly assigned to the genus Ouratea and/or Gomphia are proposed: C. andongensis, C. glomeratum, C. longestipulatum, C. lunzuensis, C. lutambensis, C. nutans, C. plicatum and C. warneckei. Finally, one taxon is raised from the variety to species level, leading to the new combination C. costatum.
Tipo: Article / Letter to the editor Palavras-chave: Africa; Campylospermum; Conservation; Gabon; Gomphia; IUCN Red List; Ochnaceae; Ouratea; Taxonomy.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/525772
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Novitates Gabonenses 63. Illigera Cava (Hernandiaceae), a new species from Gabon and Congo (Brazzaville) Naturalis
Breteler, F.J.; Wieringa, J.J..
Illigera cava, endemic to Lower Guinea, is described, illustrated, and mapped. The new taxon brings the number of African Illigera species to four. Maps, and a key to the four species of Africa are presented.
Tipo: Article / Letter to the editor Palavras-chave: Hernandiaceae; Illigera; New species; Africa; Lower Guinea.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/526227
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Hymenostegia viridiflora (Detarieae, Caesalpinioideae, Leguminosae), a new tree species from Cameroon Naturalis
Mackinder, B.A.; Wieringa, J.J..
A new species of Hymenostegia (Detarieae, Caesalpinioideae, Leguminosae) is described from Cameroon. Hymenostegia viridiflora has previously been confused with the type species of the genus, H. floribunda, but differs from it in having pale green to greenish yellow instead of lemon yellow petals, a broader upper part of the stipule, more numerous reddish veins on the white bracteoles and generally more numerous and narrower leaflets. As a consequence, the geographic range of true H. floribunda no longer includes Cameroon. Hymenostegia viridiflora is assessed as Vulnerable according to the criteria of IUCN.
Tipo: Article / Letter to the editor Palavras-chave: Caesalpiniaceae; Conservation; Fabaceae; Taxonomy; Threatened species; Tropical Africa.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/524787
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The correct name for Pentas schimperiana is Pentas schimperi (Rubiaceae) Naturalis
Wieringa, J.J..
As so far nobody considered the name Mussaenda schimperi Hochst. to be validly published, combinations of the superfluous name Vignaldia schimperiana A.Rich. became in use. The correct combination for this species in Pentas and that for one subspecies is presented here.
Tipo: Article / Letter to the editor Palavras-chave: Rubiaceae; Pentas; Schimper; Africa; Ethiopia; Nomenclature.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/526008
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Revision of the Neotropical genus Desmopsis (Annonaceae) Naturalis
Schatz, G.E.; Maas, P.J.M.; Maas-van de Kamer, H.; Westra, L.Y.T.; Wieringa, J.J..
A taxonomic revision of the genus Desmopsis is presented. Within the genus Desmopsis 25 species are recognized, 9 of which are new, with one new combination. Distinguishing morphological characteristics are discussed, and a dichotomous key to all species is given. The species treatments include descriptions, full synonymy, geographical and ecological notes, vernacular names, and taxonomic notes. Distribution maps are presented of all species, and a complete identification list of exsiccatae examined is included.
Tipo: Article / Letter to the editor Palavras-chave: Annonaceae; Descriptions; Desmopsis; Morphology; Neotropics; Phylogeny; Taxonomy; Vernacular names.
Ano: 2018 URL: http://www.repository.naturalis.nl/record/671950
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A synopsis of Mendoncia (Acanthaceae) in continental Africa including the description of two new species from western Central Africa and a new subspecies from West Africa Naturalis
Breteler, F.J.; Wieringa, J.J..
The amphi-atlantic genus Mendoncia of the Acanthaceae counts c. 80 species. In tropical Africa it is represented by 14 species, eight in continental Africa and six in Madagascar. The remaining species occur in tropical America. The new species Mendoncia camerounensis and M. rabiensis are described and illustrated. Mendoncia floribunda is resurrected, fully described, and illustrated as well. Mendoncia iodioides, reduced to a variety of M. phytocrenoides in the Flore du Gabon, is restored as a distinct species. The isolated western population of Mendoncia gilgiana is recognised as a new subspecies. The conservation status of all species is assessed. Only a few of them are classified as Least Concern, the others as ranging from Critically Endangered to...
Tipo: Article / Letter to the editor Palavras-chave: Cameroon; Gabon; Key; Mendoncia; New species; New subspecies; Taxonomy.
Ano: 2018 URL: http://www.repository.naturalis.nl/record/655988
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Novitates Gabonenses 70. The advantages of a specimen database: Alafia velutina is a synonym of Farquharia elliptica (Apocynaceae) Naturalis
Wieringa, J.J..
The type of Alafia velutina Leeuwenb. proves to be conspecific with Farquharia elliptica Stapf and hence becomes a new synonym of the latter name. Maintaining a specimen database may help in avoiding mistakes like this.
Tipo: Article / Letter to the editor Palavras-chave: Africa; Alafia; Apocynaceae; Farquharia; Specimen database.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/525556
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Eriosema arenicola stat. nov. and some notes on Eriosema glomeratum (Leguminosae-Papilionoideae) in West Africa Naturalis
Maesen, L.J.G. van der; Wieringa, J.J..
Eriosema arenicola deserves species status. Its nearest relatives are discussed and a key to distinguish the taxa is provided. Three maps depict the occurrence of the taxa.
Tipo: Article / Letter to the editor Palavras-chave: Eriosema; Leguminosae-Papilionoideae; West Africa.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/525905
Registros recuperados: 10
Primeira ... 1 ... Última
 

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