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| Registros recuperados: 13 | |
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| Welzen, P.C. van; Sierra, S.E.C.; Gebraad, M.J.H.; Kulju, K.K.M.. |
| Mallotus concinnus Airy Shaw, M. havilandii Airy Shaw, M. insularum (Airy Shaw) Slik, and M. miquelianus (Scheff.) Boerl. are very similar in appearance, with opposite leaves of which one large and elliptic, and the other reduced and more or less obcordate. However, a detailed look revealed enough differences to regard them as distinct species. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Euphorbiaceae; Hancea; Mallotus. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/525901 |
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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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| Sierra, S.E.C.; Aparicio, M.; Gebraad, M.J.H.; Kulju, K.K.M.; Welzen, P.C. van. |
| The range of diagnostic morphological features in the whole genus Mallotus is reviewed as background to the taxonomic treatment of section Rottleropsis s.l. Special emphasis is given to the indumentum, habit, stipules, leaves, extrafloral nectaries, domatia, inflorescences, flowers, pollen and fruits. Notes on the geographical distribution, ecology, pollinators, fruit and seed dispersal, and uses of the genus are also presented. The section Axenfeldia is reduced to sect. Rottleropsis on account of the absence of suitable morphological characters to distinguish them. A taxonomic revision of 38 species of sect. Rottleropsis s.l. from Malesia, Thailand and Africa is presented, together with regional and synoptical identification keys, distribution maps and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Euphorbiaceae; Axenfeldia; Mallotus; Rottleropsis; Malesia; Thailand; Africa. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/524640 |
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| Welzen, P.C. van; Sierra, S.E.C.. |
| The Mallotus wrayi King ex Hook.f. complex on the Sunda Shelf of the Malay Archipelago (Malay Peninsula, Sumatra, Java, Borneo) appeared to comprise four species instead of a single, very heterogeneous one. Two synonyms (M. caudatus Merr. and M. lancifolius Hook.f.) are resurrected and a new species, M. spinifructus, is described. Important characters can be found in the density of the hairs (glandular scale-like, simple or stellate), type of stellately bundled hairs, lengths of inflorescences, bracts, and bracts of the terminal bud, and in the stigma width and hairiness. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Euphorbiaceae; Mallotus; Sunda Shelf; Malesia. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/524771 |
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| 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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| Kulju, K.K.M.; Sierra, S.E.C.; Welzen, P.C. van. |
| A recent molecular phylogenetic study of Mallotus and related genera showed that three small Asiatic genera are clearly part of a strongly supported main Mallotus clade (Mallotus s.s. clade), rendering the genus paraphyletic. In this paper these genera, Neotrewia, Octospermum and Trewia, are merged with Mallotus. The monotypic Neotrewia and Octospermum were originally described within Mallotus and are now transferred back to it. Trewia was never included in Mallotus; it has two distinct species, for which new combinations within Mallotus are made. A full taxonomic treatment with descriptions, distribution maps and drawings is given for the species transferred, and a new generic description for Mallotus is provided. The morphology of the newly transferred... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Rottlerinae; Mallotus; Neotrewia; Octospermum; Trewia; Malesia; Taxonomy. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/524934 |
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| Sierra, S.E.C.; Gravendeel, B.; Vogel, E.F. de. |
| Section Verrucosae Pfitzer & Kraenzl. of the genus Coelogyne Lindl. is revised using morphological and molecular data. Eight species are recognized, including two new ones ( C. marthae and C. verrucosa). One name is reduced to synonymy. Four species formerly included by several authors in sect. Verrucosae (C. brachyptera, C. papillosa, C. parishii and C. virescens) are excluded. A total evidence analysis of morphological characters and ITS and matK sequence data supports the monophyly of the section as here recognized. Coelogyne virescens (sect. Brachypterae) is identified as nearest neighbour to the species of sect. Verrucosae. The number of sterile bracts on the rhachis and the shape of the ornamentation on the epichile appear to be phylogenetically... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Coelogyne sect. Verrucosae; MatK; Orchids; Phylogeny; Ribosomal ITS; Systematics. |
| Ano: 2000 |
URL: http://www.repository.naturalis.nl/record/524865 |
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| Registros recuperados: 13 | |
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