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Registros recuperados: 4
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Revision of the Malesian and Thai species of Sauropus (Euphorbiaceae: Phyllanthoideae) Naturalis
Welzen, P.C. van.
Fourteen species of Sauropus are recognised for Malesia, 21 for Thailand. Two species are described as new, S. asymmetricus of Sumatra and S. shawii of Borneo. Many new synonyms, especially for S. androgynus and S. rhamnoides, are provided. The latter two species have a much wider distribution than described before and both are difficult to separate from each other. A phylogeny based on morphological and palynological data proved futile, but showed that Sauropus together with Breynia and Glochidion are embedded in the paraphyletic Phyllanthus. Most species which formerly belonged to Synostemon and are now included in Sauropus are probably, with the exception of S. bacciformis, related to Breynia and Glochidion. Because of the poor phylogenetic results the...
Tipo: Article / Letter to the editor Palavras-chave: Euphorbiaceae; Sauropus; Synostemon; Malesia; Thailand.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/525088
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Phylogenetic reconstruction prompts taxonomic changes in Sauropus, Synostemon and Breynia (Phyllanthaceae tribe Phyllantheae) Naturalis
Welzen, P.C. van; Pruesapan, K.; Telford, I.R.H.; Esser, H.-J.; Bruhl, J.J..
Previous molecular phylogenetic studies indicated expansion of Breynia with inclusion of Sauropus s.str. (excluding Synostemon). The present study adds qualitative and quantitative morphological characters to molecular data to find more resolution and/or higher support for the subgroups within Breynia s.lat. However, the results show that combined molecular and morphological characters provide limited synergy. Morphology confirms and makes the infrageneric groups recognisable within Breynia s.lat. The status of the Sauropus androgynus complex is discussed. Nomenclatural changes of Sauropus species to Breynia are formalised. The genus Synostemon is reinstated.
Tipo: Article / Letter to the editor Palavras-chave: Breynia; Molecular phylogeny; Morphology; Phyllanthaceae; Sauropus; Synostemon.
Ano: 2014 URL: http://www.repository.naturalis.nl/record/525483
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Reduction of Breynia subgenus Hemisauropus to B. section Cryptogynium and discussion of the B. quadrangularis complex (Phyllanthaceae) Naturalis
Welzen, P.C. van.
Breynia subgenus Hemisauropus is reduced to Breynia section Cryptogynium. Arguments are given to regard the Breynia quadrangularis complex as a single species.
Tipo: Article / Letter to the editor Palavras-chave: Breynia section Cryptogynium; Breynia quadrangularis complex; Euphorbiaceae; Phyllanthaceae; Sauropus.
Ano: 2017 URL: http://www.repository.naturalis.nl/record/630812
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Two new species of Sauropus (Euphorbiaceae) from Thailand, and a new combination Naturalis
Welzen, Peter C. van.
Two new species of Sauropus are described, both endemic to Thailand. The two species have long, cauliflorous inflorescences. Sauropus discocalyx has very broad staminate flowers and S. thyrsiflorus has thyrsoid inflorescences with per node a single pistillate flower and cymes with staminate flowers. A new combination for Glochidion subterblancum C.E.C. Fisch. ( Breynia subterblancum (C.E.C. Fisch.) C.E.C. Fisch.) is made in Sauropus.
Tipo: Article / Letter to the editor Palavras-chave: Euphorbiaceae; Sauropus.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/525574
Registros recuperados: 4
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