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| Registros recuperados: 17 | |
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| Leonardía, A.A.P.; Keßler, P.J.A.. |
| The genus Mezzettiopsis Ridl. (Annonaceae) is revised and transferred to Orophea Blume subgenus Sphaerocarpon Keßler. Phylogenetic analysis of subgenus Sphaerocarpon and Mezzettiopsis places Mezzettiopsis within the subgenus. Furthermore, the prevalence of common or overlapping character states and the paucity of unique character states necessitate the transfer. Two species were transferred from Mezzettiopsis. Of these, one species of Orophea is reinstated and one new combination is made. Three species are described as new. In total, nine species are fully described. Sphaerocarpon is a subgenus of small, tropical, lowland trees distributed from Sulawesi westwards to South India. It is characterised by having sepals and outer petals that are sessile or... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Annonaceae; Mezzettiopsis; Orophea; Sphaerocarpon; Phylogeny. |
| Ano: 2001 |
URL: http://www.repository.naturalis.nl/record/525883 |
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| Keßler, P.J.A.. |
| The German Research Council (DFG) supports an extensive interdisciplinary research programme to be implemented in the area of the Lore Lindu National Park, Central Sulawesi. The first phase of the programme is scheduled for 3 years (July 2000-June 2003). Up to four successive phases of 3 years’ duration each may follow, depending on the outcome and success of the current phase. The programme comprises 5 subprogrammes with altogether 17 projects, each involving at least one doctoral student from Germany. The students from Germany will be matched by Indonesian doctoral students wherever possible within the framework of the Indonesian and German systems of scientific promotion, involving scholarships, supervision, university development schemes. |
| Tipo: Article / Letter to the editor |
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| Ano: 2002 |
URL: http://www.repository.naturalis.nl/record/533384 |
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| Keßler, P.J.A.; Baas, P.. |
| During the last three years the Rijksherbarium/Hortus Botanicus (L) has been involved in the Tropenbos Kalimantan Programme, a co-operative programme between AFRD (Agency of Forest Research and Development, Indonesian Ministry of Forestry) and the ‘Tropenbos’ Foundation. The implementation of this programme is executed by AFRD and its institutes on the Indonesian side and the IBG-DLO (Instituut voor Bosbouw en Groenbeheer – Dienst Landbouwkundig Onderzoek), Wageningen, and L on the Dutch side. UNESCO-MAB has funded research in soil science. The programme is supported by the forestry state enterprises Inhutani I and II, and other concessionaires. A close co-operation exists with the Faculty of Forestry of the Mulawarman University, Samarinda. The research... |
| Tipo: Article / Letter to the editor |
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| Ano: 1993 |
URL: http://www.repository.naturalis.nl/record/533041 |
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| Mols, J.B.; Keßler, P.J.A.. |
| A taxonomic revision of the Austro-Malesian species of Miliusa Lesch. ex A.DC. (Annonaceae) is presented. Ten species can be recognised in the area, including one new species, Miliusa novoguineensis, described here. Most species are restricted to certain islands or geographic areas. Miliusa horsfieldii (Benn.) Pierre is the main exception as it is distributed from Hainan up to Queensland, Australia. Six of the ten species (except M. amplexicaulis Ridl., M. longipes King, M. macropoda Miq. and M. parviflora Ridl.) have a deciduous habit, and are largely restricted to areas with a monsoon climate. A key, based primarily on generative characters, and descriptions to the species are included. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Annonaceae; Miliusa; Flora Malesiana; Australia; Revision. |
| Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/525120 |
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| Keßler, P.J.A.. |
| The genus Orophea Blume (Annonaceae: Saccopetaleae) has been revised with the following main results: — The genus in the circumscription of most authors is not monophyletic, but biphyletic. The genus Mezzettiopsis Ridley has to be reinstated. — Pseuduvaria, Mitrephora, Petalolophus, Oreomitra, Schefferomitra, Goniothalmus, Exellia, Popowia, Richella, Phaeanthus, Trivalvaria and Atopostema are not closely related to Orophea as supposed by Fries (1959). — For the tribe in which Orophea has to be placed, the name Saccopetaleae Hook. f. & Thomson has to be accepted for nomenclatural reasons. Its members are Miliusa, Orophea, Mezzettiopsis, Phoenicanthus, Alphonsea and Platymitra. — Characters of the genus have been studied and a new classification below... |
| Tipo: Article / Letter to the editor |
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| Ano: 1988 |
URL: http://www.repository.naturalis.nl/record/524441 |
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| Van Sam, Hoang; Baas, P.; Keßler, P.J.A.. |
| This paper surveys the medicinal plants and their traditional use by local people in Ben En National Park, Vietnam. A total of 230 medicinal plant species (belonging to 200 genera and 84 families) is used by local people for treatment of 68 different diseases. These include species that are collected in the wild (65%) as well as species grown in home gardens. Leaves, stems and roots are most commonly used either fresh or dried or by decocting the dried parts in water. Women are mainly responsible for health care, they have better knowledge of medicinal plants than men, and also collect them more than men at almost every age level. The indigenous knowledge of traditional medicinal plants may be rapidly lost because 43% of the young generation do not know or... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Ben En National Park; Traditional medicinal plants; Disease treatment; Conservation. |
| Ano: 2008 |
URL: http://www.repository.naturalis.nl/record/525136 |
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| Maesen, L.J.G. van der; Balgooy, M.M.J. van; Adema, F.; Keßler, P.J.A.. |
| A joint project of the National Herbarium, Addis Ababa University, and the Department of Systematic Botany, Uppsala University, the Ethiopian Flora Project that was launched in 1980, continues to produce results since the first volume (in fact Vol. 3) was published. Many efforts have gone into fund raising, and SIDA, the Swedish International Development Cooperation (earlier SAREC), and the Ethiopian Government have contributed considerable sums of money to achieve the publication of the Flora of Ethiopia and Eritrea. The editorial team in Uppsala, Addis Ababa and Eritrea has to be congratulated that within two years after the appearance of both volumes of 1995 another issue has left the press. In this extremely rich flora region, with altitudes ranging... |
| Tipo: Article / Letter to the editor |
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| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/524674 |
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| Mols, J.B.; Keßler, P.J.A.. |
| A revision of the genus Phaeanthus Hook.f. & Thomson (Annonaceae) is presented. The genus comprises 8 species. A key to the fruiting and/or flowering specimens of the genus is included. The genus consists of shrubs to small-sized trees from Malesia and Vietnam. It is characterised by sepals and outer petals that are alike, numerous carpels and stamens, the latter truncate with a distinctive connective prolongation, monocarpous fruits, and leaves often drying dark brown to black. A phylogenetic analysis shows the monophyly of the genus and that Phaeanthus nutans can be considered the sister species of the remaining species. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Annonaceae; Phaeanthus; Phylogeny; Revision. |
| Ano: 2000 |
URL: http://www.repository.naturalis.nl/record/525297 |
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| Keßler, P.J.A.; Bos, M.M.; Sierra Daza, S.E.C.; Kop, A.; Willemse, L.P.M.; Pitopang, R.; Gradstein, S.R.. |
| Sulawesi comprises of about 182,870 km² of land and fewer botanical specimens (about 23 specimens per 100 km², Whitten et al., 1987) have been collected here than in any other major island in Indonesia. This island is up to date botanically poorly explored and according to Van Steenis (1950) about 32,500 specimens of plants were recorded, the number is probably only a rough estimation and certainly in the precomputer era not based on real specimens. Within the framework of STORMA (Stability of Rainforest Margins) we analyzed the vegetation in several plots of one hectare of different land use systems at the Lore Lindu National Park, Central Sulawesi, Indonesia. Rapidly we were faced with the problem that the identification of the mostly sterile trees would... |
| Tipo: Article / Letter to the editor |
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| Ano: 2002 |
URL: http://www.repository.naturalis.nl/record/526385 |
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| Registros recuperados: 17 | |
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