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| Registros recuperados: 99 | |
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| Welzen, P.C. van; Slik, J.W.F.. |
| Distribution patterns or the recognition of phytogeographical areas is usually based on the presence and absence of species. The taxa on which the analyses are based remain virtually anonymous. Here we want to determine which Malesian plant families (within the sample) are responsible for species richness and composition patterns. The other aim is to determine whether the different islands groups in Southeast Asia can be grouped into separate phytogeographical areas. A Principal Coordinates Analysis (PCO) showed the presence of three phytogeographical areas within Malesia: The Sunda Shelf (Malay Peninsula, Sumatra, Borneo) in the west, the Sahul Shelf (New Guinea) in the east, and all remaining central areas forming Wallacea. The latter can be divided into... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Floristic patterns; Malay Archipelago; Malesia; PCO; Plant families; Species richness. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/525639 |
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| Sierra, S.E.C.; Kulju, K.K.M.; Veldkamp, J.F.; Welzen, P.C. van. |
| Based on phylogenetic studies with DNA sequence data, the formerly monotypic genus Cordemoya was recently expanded with 16 additional species previously assigned to Mallotus. However, the earliest legitimate generic name available is Hancea, and, therefore, Cordemoya is here reduced to Hancea (20 new combinations are proposed). Subsequently, the subgenus and section Diplochlamys from Asia are renamed to Hancea. Additionally, the genus Adisca is lectotypified with Adisca floribundus (= Mallotus floribundus). |
| Tipo: Article / Letter to the editor |
Palavras-chave: Euphorbiaceae; Adisca; Cordemoya; Diplochlamys; Hancea; Mallotus; Madagascar; Malesia; Mascarenes. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/525717 |
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| Welzen, P.C. van. |
| Malesia harbours one, possibly two species of Blachia. In the Philippines B. philippinensis is found and this species is not synonymous with B. andamanica. In literature B. andamanica has been recorded for west Malesia, but no specimens were seen. Based on its presence in Peninsular Thailand and the Andamans it is likely to be present in Peninsular Malaysia. The most distinct difference between both species is in the indumentum of the ovary, sparsely hairy in the lower half versus densely and completely sericeous, respectively. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Blachia; Euphorbiaceae; Malesia. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/578354 |
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| Bramley, G.L.C.. |
| Section Dissimiles C.B. Clarke is reviewed. Eleven species are known, one of which is newly described here (C. fulvisericea), and one species is reduced to synonymy (C. producta = C. trisepala). The section is centred on Borneo, with two outlying species in Sumatra and one in Peninsular Malaysia. Section Dissimiles is defined by a unique combination of characters, the most distinctive of these are: a zygomorphic calyx (the upper three lobes are fused to form one but the tips remain free, and the lower two lobes are completely separated to the base); anisophyllous leaf pairs, and a small (generally less than 2 cm long), predominantly white, somewhat translucent corolla. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Cyrtandra; Section Dissimiles; Malesia; Taxonomy. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/525921 |
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| Kloet, S.P. vander. |
| Vaccinium section Rigiolepis (Hook.f.) Sleumer is revised for the Flora Malesiana region. In the introduction a short history of the genus (section) and its defining characters are presented followed by comments about Sleumer’s classification for this section. Numerical techniques using features suggested by Sleumer on ‘indet’ specimens at Leiden counsel a more conservative approach to species delimitation and the resultant revision for this section recognizes thirteen species including three new taxa, viz., V. crinigrum, V. suberosum, and V. linearifolium. Lectotypes for V. borneense W.W. Sm. and V. leptanthum Miq. are also proposed. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Vaccinium; Rigiolepis; Malesia; New species. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/525327 |
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| Poulsen, A.D.; Gideon, O.G.; Ardiyani, M.. |
| Four species of Tapeinochilos have been described from material collected in Wallacea. We designate the lectotype of the genus, T. pungens, which was synonymized with T. ananassae in 1917 and add here T. teysmannianus as another synonym. The type of T. koordersianus from Sulawesi has been rediscovered at Herbarium Bogoriense and is identified as Etlingera heliconiifolia (Zingiberaceae), the combination of which is published here. After establishing that T. koordersianus applies to a species of Etlingera, there is no evidence that any species of Tapeinochilos occurs in the island of Sulawesi; the westernmost presence of the genus being in the Sula Islands represented by T. ananassae, the only species thus presently occurring in Wallacea. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Biogeography; Cheilocostus; Etlingera; Gingers; Malesia; Ridley; Typification. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/524500 |
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| Stuppy, W.; Welzen, P.C. van; Klinratana, P.; Posa, M.C.T.. |
| The three closely related genera Aleurites J. R. Forst. & G. Forst., Reutealis Airy Shaw and Vernicia Lour., together constituting the subtribe Aleuritinae of the tribe Aleuritideae (Euphorbiaceae subfamily Crotonoideae), are revised. Originally included in Aleurites, Reutealis and Vernicia are considered generically distinct on account of differences in the indumentum, leaf base, inflorescences, number of stamens and fruit type. This distinction has also been confirmed by a recent phylogenetic analysis. Aleurites (2 species) differs from Reutealis and Vernicia by the more numerous stamens arranged in 4 rather than in 2 whorls, and the indehiscent fruits. The monotypic genus Reutealis can easily be distinguished from Aleurites and Vernicia by its... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Aleurites; Reutealis; Vernicia; Malesia; Systematics; Taxonomy. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/524645 |
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| Berg, C.C.. |
| The sections of Ficus subg. Sycomorus are described and their Malesian species listed and keyed out. Six new species are described in the subgenus: Ficus albomaculata, F. biakensis, F. boanensis, F. limosa, F. manuselensis, F. morobensis, F. remifolia, F. rubrosyce, F. scopulifera; and one new subspecies: F. botryocarpa Miq. subsp. hirtella C.C. Berg. The new combinations F. botryocarpa Miq. subsp. subalbidoramea (Elmer) C.C. Berg, F. porrecta (Corner) C.C. Berg, F. trichocerasa Diels subsp. pleioclada (Diels) C.C. Berg are also made. The following new sections and subsection are proposed: Subg. Sycomorus sect. Bosscheria (Teijsm. & de Vriese) C.C. Berg, sect. Dammaropsis (Warb.) C.C. Berg, sect. Papuasyce (Corner) C.C. Berg, and subsect. Neomorphe... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Moraceae; Ficus subg. Sycomorus; Malesia. |
| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/525769 |
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| Wilde, W.J.J.O. de; Duyfjes, B.E.E.. |
| Alangium Lam. sect. Conostigma Bloemb. is largely confined to the Malesian area and contains 19 species. By using the characters as found in the original species-descriptions, and with emphasizing the nature of the indument of the leaf bud, the confusingly variable Alangium javanicum s.l.-complex could be dismantled for a great part. Four new species: A. ledermannii, A. pallens, A. plumbeum, and A. subcordatum, and two new varieties: A. meyeri var. macilentum and A. ebenaceum var. insignis are recognised. Two taxa are raised to specific status: A. nobile subsp. denudatum to A. denudatum and A. javanicum var. minahassicum to A. minahassicum. A key to the species is presented, and the concerned taxa are enumerated, referenced, described and some are figured. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Alangiaceae; Alangium sect. Conostigma; Malesia; New species; Taxonomy. |
| Ano: 2017 |
URL: http://www.repository.naturalis.nl/record/624255 |
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| Welzen, P.C. van; Sweet, F.S.T.; Fernández-Casas, F.J.. |
| Jatropha, a widespread, species rich genus, ranges from the Americas and Caribbean to Africa and India. In Malesia five species occur, all of which were introduced and originated in Central and South America. The five species are revised and an identification key, nomenclature, descriptions, distributions, ecology, vernacular names, uses and notes are provided. Special attention is given to the uses of J. curcas, because it is steadily gaining popularity as a potential biofuel plant and, because of that, is being cultivated more often. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Euphorbiaceae; Introduced species; Invasive species; Jatropha; Malesia; Revision. |
| Ano: 2017 |
URL: http://www.repository.naturalis.nl/record/627810 |
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| Coritico, F.P.; Fleischmann, A.. |
| Drosera rotundifolia, a species of the temperate Northern Hemisphere with a disjunct occurrence in high montane West Papua, has been discovered in a highland peat bog on Mt Limbawon, Pantaron Range, Bukidnon on the island of Mindanao, Philippines, which mediates to the only other known tropical, Southern Hemisphere location in New Guinea and the closest known northern populations in southern Japan and south-eastern China. A dichotomous key to the seven Drosera species of the Philippines is given, and distribution maps are provided. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Carnivorous plants; Drosera; Droseraceae; Malesia; Mindanao; Northern Hemisphere; Tropics; Disjunction; Philippines; 42.58; 42.48. |
| Ano: 2016 |
URL: http://www.repository.naturalis.nl/record/606354 |
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| Parris, B.S.. |
| Traditionally most species of Grammitidaceae have been placed in three genera, Ctenopteris, Grammitis and Xiphopteris, defined by frond dissection. Grammitis has simple fronds, usually with one row of sori on each side of the midrib. Xiphopteris has lobed to pinnate fronds, and one row of sori on each side of the midrib or rachis. Ctenopteris has fronds deeply lobed to tripinnate, with more than one row of sori on each side of the midrib or rachis. There are problems with the usage of these three names: Grammitis is now defined to include only those species with a dark sclerotic frond border, the type species of Xiphopteris has been transferred to Cochlidium, and the type species of Ctenopteris belongs to Prosaptia. In both the Old World and the New World,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Grammitidaceae; Malesia; Monilophyta; New genera. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/525758 |
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| Registros recuperados: 99 | |
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