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Registros recuperados: 99
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A new species of Alphonsea (Annonaceae) from Peninsular Malaysia Naturalis
Turner, I.M.; Utteridge, T.M.A..
Alphonsea rugosa sp. nov. is described from eastern Peninsular Malaysia. It is similar to Alphonsea elliptica but has fruits that are dry wrinkled and glabrous rather than smooth and tomentose. A conservation assessment of Vulnerable based on collections from four locations is made.
Tipo: Article / Letter to the editor Palavras-chave: IUCN; Malay Peninsula; Malesia; South-East Asia; Taxonomy; Tropical forest.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/578384
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A new species of Asplenium section Thamnopteris (Aspleniaceae) from Indonesia Naturalis
Dong, S.Y.; Mujahidin; Wei, L.L.; Chao, Y.S..
A new species, Asplenium riswanii (sect. Thamnopteris), is described from Central Java and West Papua, Indonesia. It is distinct from any known species by having thick and rigid fronds, abaxially keeled midribs, broadly lanceolate scales, and distantly spaced sori. Morphologically, A. riswanii is not similar to any species from Malesia but somewhat close to A. antrophyoides from mainland Southeast Asia. Molecular data reveal it has an isolated position in the phylogeny. The micromorphology of spores and leaf epidermis of A. riswanii is also documented and a key to the species of Asplenium sect. Thamnopteris from Malesia is given.
Tipo: Article / Letter to the editor Palavras-chave: Bird-nest fern; Malesia; Morphology; Taxonomy.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/525143
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A new species of Maesa (Primulaceae-Maesoideae) from New Guinea Naturalis
Utteridge, T.M.A..
A new species of Maesa (Primulaceae-Maesoideae) is described from Indonesian New Guinea. Maesa megistophylla is unique in the genus in the combination of the very long elliptic leaves, and racemes with subsessile flowers. The species is illustrated, taxonomic affinities are discussed, and is assessed as Data Deficient according to the criteria of IUCN.
Tipo: Article / Letter to the editor Palavras-chave: Ericales; Indonesia; Malesia; South-East Asia; Taxonomy.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/578431
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A partial revision of the Hippomaneae (Euphorbiaceae) in Malesia Naturalis
Esser, Hans-Joachim.
The Hippomaneae (Euphorbiaceae) are revised for Malesia. Only Excoecaria and Homalanthus are excluded. A key to all Malesian genera is provided. The generic concepts applied differ markedly from previous treatments for the region with the following genera accepted: Balakata, Falconeria, Gymnanthes, Microstachys, Sapium, Shirakiopsis, Stillingia and Triadica. All of these genera show peculiarities in biogeography and ecology, which are discussed. Among these genera only Stillingia is kept as traditionally used. Balakata (based on Sapium sect. Pleurostachya) and Shirakiopsis (based on Sapium sect. Parasapium but excluding its type) are described as new genera; Falconeria, Microstachys and Triadica are re-established as distinct genera having been treated as...
Tipo: Article / Letter to the editor Palavras-chave: Euphorbiaceae; Hippomaneae; Malesia.
Ano: 1999 URL: http://www.repository.naturalis.nl/record/525910
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A review of the Asian species of the genus Euaspis Gerstäcker (Hymenoptera: Apoidea: Megachilidae) Naturalis
Baker, D.B..
The Asian species of Euaspis are reviewed. Euaspis carbonaria of authors is shown to be composite: a lectotype is designated and the species with which carbonaria has long been confused is described as Euaspis edentata spec. nov. Euaspis lorenzae spec. nov. is described from the Philippines and E. wegneri spec. nov. from Bacan (Moluccas). Two species described by Pasteels from 'Arabia' are shown to be of Bornean origin. Euaspis bakeri (Viereck, 1924) is synonymized with E. strandi Meyer, 1922, for which a lectotype is designated (the type locality Sikhim given by Meyer for this taxon is apparently false), and E. impressa (Viereck, 1924) with E. polynesia Vachal, 1903.
Tipo: Article / Letter to the editor Palavras-chave: Euaspis edentata; Euaspis lorenzae; Euaspis wegneri; Malesia; New synonymy; Keys; 42.75.
Ano: 1995 URL: http://www.repository.naturalis.nl/record/318701
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A revision of Jatropha (Euphorbiaceae) in Malesia Naturalis
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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A revision of Mnesithea (Gramineae – Rottboelliinae) in Malesia and Thailand Naturalis
Veldkamp, J.F.; Boogaart, M.E.B. van den; Heidweiller, J.; Klaauw, M.A.F. van der; Koning, R. de; Kraaijeveld, A.R.; Sosef, M.S.M.; Strucker, R.C.W..
A revision of Mnesithea (Gramineae – Rottboelliinae) in Malesia and Thailand showed that 11 species and 2 varieties occur. The suggestion that there would be a drought plant refuge in SE Borneo near Banjarmasin is supported.
Tipo: Article / Letter to the editor Palavras-chave: Andropogoneae; Borneo; Drought plants; Gramineae; Malesia; Mnesithea; Poaceae; Rottboelliinae; Thailand.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/525930
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A revision of Ostodes (Euphorbiaceae) in Malesia Naturalis
Welzen, P.C. van; Winkel, E..
The variability of Ostodes paniculata var. paniculata, the only representative of the genus in Malesia, is described. The variety and the species have a disjunct distribution as they are found in India to Southern China and the Southeast Asian mainland, Sumatra and Java. The variability in leaf glands, domatia, sepals, and seeds shows geoclines. Depending on one’s view the genus has two more varieties or species, both more hairy and occurring from N Thailand to China or in China only. Their nomenclature is provided, as is the nomenclature of the many excluded species, once part of a larger generic concept of Ostodes, but now mainly part of Dimorphocalyx and Paracroton. Typical for Ostodes are the red latex, the ovate, rather large serrate leaf blades with...
Tipo: Article / Letter to the editor Palavras-chave: Dimorphocalyx; Euphorbiaceae; Malesia; Ostodes; Paracroton; Trigonostemon.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/578359
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A revision of the genus Actephila (Phyllanthaceae) in the Malesian region Naturalis
Heijkoop, M.; Welzen, P.C. van.
The genus Actephila (Phyllanthaceae) is distributed from India in the north-west to Thailand and via Malesia to the Melanesian Islands and Australia in the south-east. Eleven species are recognized of which three are newly described, A. discoidea with long leaf apices and a fleshy nectar discs, A. emarginata with an emarginate leaf base, and A. stipularis with large stipules. Further, A. javanica is synonymized with A. excelsa; and a former synonym or separate variety, A. excelsa var. acuminata, is recognized as distinct species, but had to be synonymized under A. subsessilis. Actephila puberula, not present in Malesia, but often synonymized with A. excelsa, is kept separate because of the hairy ovary and different base of the leaf blades.
Tipo: Article / Letter to the editor Palavras-chave: Actephila; Asia; Malesia; Phyllanthaceae; Revision; Taxonomy.
Ano: 2017 URL: http://www.repository.naturalis.nl/record/623378
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A revision of the Malesian genus Blumeodendron (Euphorbiaceae) Naturalis
Ottens-Treurniet, M.A.D.; Welzen, P.C. van.
The genus Blumeodendron (Euphorbiaceae) comprises nine species and is distributed from the Andaman Islands and Myanmar in the west through Malesia to the Bismarck Archipelago in the east. Two species are newly described, B. gesinus, with ridged fruits, and B. endocarpum, with a thickened endocarp around each seed. Three former synonyms, B. novoguineense (new name for Bennettia papuanum), B. philippinense and B. subrotundifolium, are reinstated as species. Two important characters were newly discovered, the presence of small lepidote hairs in all species and the indehiscent fruit of B. endocarpum
Tipo: Article / Letter to the editor Palavras-chave: Blumeodendron; Euphorbiaceae; Malesia; Revision; Taxonomy.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/607279
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A revision of the Malesian species of Blachia (Euphorbiaceae) Naturalis
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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A study on the taxonomy of some stoloniflorous species of Ficus subsection Sycocarpus (Moraceae) in Thailand and Malesia Naturalis
Berg, C.C.; Chantarasuwan, B..
The taxonomy of several, mainly stoloniflorous, Ficus species from Thailand and Malesia is revised resulting in a new species, F. bukitrayaensis C.C. Berg and two new names, F. malayana C.C. Berg & Chantarasuwan and F. ridleyana C.C. Berg & Chantarasuwan. Ficus megaleia Corner and F. uncinata (King) Becc. are redefined and F. heterostyla Merr. is reinstated. Ficus arfakensis King and F. scortechinii King are reduced to synonyms of F. ribes Blume.
Tipo: Article / Letter to the editor Palavras-chave: Moraceae; Ficus; Stoloniflorous species; Malesia; Thailand.
Ano: 2007 URL: http://www.repository.naturalis.nl/record/525703
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A taxonomic revision of Mallotus section Mallotus (Euphorbiaceae) in Malesia Naturalis
Sierra, S.E.C.; Welzen, P.C. van.
A revision of Mallotus section Mallotus in Malesia is given. Descriptions, distribution maps, habit drawings and a key to all species are provided. The diagnostic characters for the section are briefly discussed. Four species (M. barbatus, M. macrostachyus, M. mollissimus, M. paniculatus) and one variety (M. paniculatus var. formosanus) are recognised.
Tipo: Article / Letter to the editor Palavras-chave: Euphorbiaceae; Rottlerinae; Mallotus; Malesia; Taxonomy.
Ano: 2005 URL: http://www.repository.naturalis.nl/record/525832
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A taxonomic revision of Mallotus section Philippinenses (former section Rottlera – Euphorbiaceae) in Malesia and Thailand Naturalis
Sierra, S.E.C.; Welzen, P.C. van; Slik, J.W.F..
A revision of Mallotus section Philippinenses (former section Rottlera) in Malesia and Thailand is given. Descriptions, distribution maps, habit drawings, and a key to the species are provided. The diagnostic characters for the section are briefly discussed. Five species (M. kongkandae, M. leptostachyus, M. pallidus, M. philippensis, and M. repandus) are recognised. Mallotus chromocarpus is excluded from the section because it has more shared characters with the monospecific genus Octospermum, like the presence of indehiscent fruits, absence of stipules, marginal extrafloral nectaries on the upper side of the leaf blade, broad connectives (shaped umbrella-like), and its occurrence in New Guinea, and is therefore probably closely related to it.
Tipo: Article / Letter to the editor Palavras-chave: Euphorbiaceae; Rottlerinae; Mallotus; Philippinenses; Rottlera; Octospermum; Malesia; Taxonomy.
Ano: 2005 URL: http://www.repository.naturalis.nl/record/525257
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A taxonomic revision of Mallotus section Polyadenii (Euphorbiaceae) Naturalis
Bollendorff, S.M.; Welzen, P.C. van; Slik, J.W.F..
Mallotus sect. Polyadenii comprises eight species. It includes the former genus Coccoceras. Mallotus leucodermis var. puberulus, endemic to the Solomon Islands, is recognised on the species level as M. puber. Mallotus anisopodus, from Indochina, is synonymised with M. plicatus from Myanmar. The identification of species is difficult, especially of M. leucodermis and M. muticus. The two species are partly sympatric and only pistillate flowers or fruits provide reliable characters; specimens with staminate flowers are very difficult to identify.
Tipo: Article / Letter to the editor Palavras-chave: Coccoceras; Mallotus; Malesia; Phylogeny.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/525643
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A taxonomic revision of Mallotus sections Hancea and Stylanthus (Euphorbiaceae) Naturalis
Slik, J.W.F.; Welzen, P.C. van.
Mallotus sections Hancea and Stylanthus from Malesia are revised. Descriptions, distribution ranges, habit drawings and keys to all the species in these two sections are provided. The diagnostic characters for the sections are discussed briefly in the section headings. Mallotus section Hancea is defined more precisely than before, resulting in the exclusion of 4 species from this section (M. brachythyrsus, M. havilandii, M. insularum (new rank) and M. miquelianus). Mallotus beccarii is synonymised with M. brachythyrsus, and M. tenuipes with M. penangensis. This section contains 12 species. In Mallotus section Stylanthus, M. oblongifolius is synonymised with M. peltatus. This section contains 6 species.
Tipo: Article / Letter to the editor Palavras-chave: Mallotus; Section Hancea; Section Stylanthus; Malesia; Taxonomy.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/525368
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A taxonomic revision of the Malesian species of Lasianthus (Rubiaceae) Naturalis
Zhu, H.; Roos, M.C.; Ridsdale, C.E..
Based on herbarium collections, the Malesian species of the genus Lasianthus are revised. A total of 131 species including 5 subspecies and 6 varieties are recognized from the Malesian region, of which 41 species, 3 subspecies and 3 varieties are described as new, and 3 new combinations are made for varieties. 22 species names and 15 variety names are reduced to synonyms. Ten species names and 2 varieties are treated as dubious mainly because their types cannot be traced. Additionally, 11 species are further excluded from Lasianthus. All species are described and a key to Malesian Lasianthus is given.
Tipo: Article / Letter to the editor Palavras-chave: Lasiantheae; Lasianthus; Malesia; Revision; Rubiaceae.
Ano: 2012 URL: http://www.repository.naturalis.nl/record/526201
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A taxonomic revision of Trigonostemon (Euphorbiaceae) in Malesia Naturalis
Yu, R.-Y.; Welzen, P.C. van.
Trigonostemon is taxonomically revised for Malesia based on herbarium collections and field observations. Thirty-eight species are recognized in Malesia, of which four of uncertain status and four newly described. The previous infrageneric classifications are briefly reviewed, but none is accepted. Some useful characters are discussed. An identification key, nomenclature, descriptions, typification, geographic distributions and taxonomic notes are provided.
Tipo: Article / Letter to the editor Palavras-chave: Euphorbiaceae; Malesia; Morphological revision; Taxonomy; Trigonostemon.
Ano: 2018 URL: http://www.repository.naturalis.nl/record/643352
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Alsophila weidenbrueckii (Cyatheaceae), a new scaly tree fern from Papua New Guinea Naturalis
Lehnert, M..
The scaly tree fern Alsophila weidenbrueckii is described and illustrated as new to science. It occurs in the Bismarck range in north-eastern New Guinea at 1200–2100 m in evergreen wet mountain forest. The species reaches maturity at a comparatively old age and large size and regenerates only in intact forests on mineral soil exposed by small landslides or tree falls.
Tipo: Article / Letter to the editor Palavras-chave: Bismarck range; Malesia; Scaly tree ferns; Sphaeropteroid indusia; 42.53; 42.48.
Ano: 2016 URL: http://www.repository.naturalis.nl/record/606332
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Ammannia (Lythraceae) in Malesia Naturalis
Wilde, W.J.J.O. de; Duyfjes, B.E.E..
Enumeration and taxonomic treatment of the seven species of Ammannia (Lythraceae) occurring in the Malesian area are presented among which one new species A. herbacea. A key to the species is given. Two species are illustrated. Ammannia debilis is a distinct species endemic to S India.
Tipo: Article / Letter to the editor Palavras-chave: Ammannia; Lythraceae; Malesia; New species.
Ano: 2014 URL: http://www.repository.naturalis.nl/record/525446
Registros recuperados: 99
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