Niels Jacobsen

Niels Jacobsen

Professor, emeritus

ORCID: 0000-0003-3932-1293

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  1. Published

    Systematisk botanik: almen havebrugsbotanik, stængelplanter

    Jacobsen, Niels & Jensen, J., 1999, 3. ed. København: Jordbrugsforlaget. 298 p.

    Research output: Book/Report › Book › Education

  2. Published

    Stort potentiale til sikring af fremtidens fødevarer

    Jacobsen, Niels, Jacobsen, S. & Sørensen, Marten, 2011, In: Jord og Viden. 5, p. 14-15 2 p.

    Research output: Contribution to journal › Journal article › Research

  3. Published

    Stories from the Mekong, part 3. Cryptocoryne (Araceae) habitats in the Kok River, Chiang Rai Province, Northern Thailand

    Idei, T., Maneeanakekul, S. & Jacobsen, Niels, 2022, In: Aroideana. 45, 1, p. 281-295 15 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    Stories from the Mekong, part 2. The Cryptocoryne (Araceae) of Chiang Khan District, Loei Province, Thailand

    Idei, T., Bastmeijer, J. D. & Jacobsen, Niels, 2017, In: Thai Forest Bulletin (Botany). 45, 1, p. 58-78 21 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    Six new Cryptocoryne taxa (Araceae) from Kalimantan, Borneo

    Wongso, S., Bastmeijer, J. D., Budianto, H., Ipor, I. B., Jensen, Karen Rysbjerg, Ørgaard, Marian & Jacobsen, Niels, 2017, In: Willdenowia. 47, 3, p. 325-339 16 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    SEM study of surface structures of the spathe in Cryptocoryne and Lagenandra (Araceae: Aroideae: Cryptocoryneae)

    Ørgaard, Marian & Jacobsen, Niels, 1998, In: Botanical Journal of the Linnean Society. 126, p. 261-289 29 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    Pogostémon helféri (Hook.f.) Press (Lamiaceae), eine neue Aquarienpflanze aus Thailand

    Prasartkul, A. & Jacobsen, Niels, 2004, In: Aqua Planta. 24, 4, p. 143-148 6 p.

    Research output: Contribution to journal › Journal article › Communication

  8. Published

    Planterne i florilegierne

    Arnklit, F., Frederiksen, S. E., Hansen, Hans Vilhelm, Jacobsen, Niels, Jørgensen, L. B., Møller, J. D., Rasmussen, Finn N. & Tybjerg, H., 2013, Blomster og verdenssyn. Pedersen, E. D. L. F. & Poulsen, H. K. (eds.). Statens Museum for Kunst, p. 197-209 13 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  9. Published

    Plant Identifications in the Green Forilegium

    Arnklit, F., Frederiksen, S. E., Hansen, Hans Vilhelm, Jacobsen, Niels, Jørgensen, L. B., Møller, J. D., Rasmussen, Finn N. & Tybjerg, H., 2013, The Green Florilegium. Poulsen, H. K. (ed.). München: Prestel verlag, Munich, p. 225-247

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  10. Published

    Phylogeny of selected Cryptocoryne species in Malaysia based on 5' trnK sequence variation of chloroplast DNA

    Sofiman Othman, A. & Jacobsen, Niels, 2008, Systematics 2008, Programme and Abstracts. p. 324 1 p.

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

  11. Published

    Permanent genetic resources added to molecular ecology resources database 1 june 2011–31 july 2011

    Barker, F. K., Bell, J. J., Bogdanowicz, S. M., Bonatto, S. L., Cezilly, F., Collins, S. M., Dubreuil, C., Dufort, M. J., Eraud, C., Fuseya, R., Heap, E. A., Jacobsen, N., Madders, M., McEwing, R., Michel, A. P., Mougeot, F., Ogden, R. S., Orantes, L. C., Othman, A. S., Parent, É. & 13 others, Pulikdo-Santacruz, P., Rioux-Paré, R., Roberts, M. F., Rosazlina, R., Sakamoto, T., de-León, P. S., Sévigny, J., St-Onge, P., Terraube, J., Tingay, R. E., Tremblay, R., Watanabe, S. & Wattier, R. A., 2011, In: Molecular Ecology Resources. 11, 6, p. 1124-1126 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. Published

    OnCryptocoryne cordata var. siamensis

    Jacobsen, Niels & Bastmeijer, J. D., 2014, In: The Aquatic Gardener. 27, 3, p. 29-39 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    On the identity of Cryptocoryne pygmaea (Araceae) from Western Mindanao and the description of a new species from the islands of Palawan and Busuanga

    Naive, M. A. K., Bastmeijer, J. D. & Jacobsen, Niels, 2022, In: Phytotaxa. 572, 3, p. 295-300 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Published

    On the Diptera pollinators of Cryptocoryne (Araceae)

    Jacobsen, Niels & Ørgaard, Marian, 2018, In: Aroideana. 41, 2-3, p. 218-236

    Research output: Contribution to journal › Journal article › Research › peer-review

  15. Published

    New taxonomical considerations and nomenclatural changes in the Cryptocoryne cordata complex (Araceae)

    Jacobsen, Niels, Wongso, S. & Ørgaard, Marian, 2023, In: Aroideana. 46, 3, 23 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    New Cryptocoryne (Araceae) from West Kalimantan, Indonesia: a new species and a new interspecific natural hybrid

    Asih, N. P. S., Wongso, S., Hendrik, Bastmeijer, J. D., Reitel, S., Jensen, Karen Rysbjerg, Ørgaard, Marian & Jacobsen, Niels, 2022, In: Aroideana. 45, 1, p. 296-312 17 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    Neuguinea - Rätsel um Cryptocoryne versteegii und Cryptocoryne dewitii

    Jacobsen, Niels, Bastmeijer, J. D., Idei, T., Takahashi, N., Wongso, S. & Ørgaard, Marian, 2016, In: Aqua Planta. 4, p. 130-141 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  18. Published

    Neue Veröffentlichungen über Cryptocoryne-Hybriden aus dem Süden West-Malaysias

    Jacobsen, Niels & Muth, H. (Translator), 2021, In: Aqua Planta. 1, p. 13-19 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. Published

    Natural hybridization – recombination – an ever-ongoing process

    Jacobsen, Niels & Ørgaard, Marian, 2017, Abstract of 17th Flora of Thailand Conference: Taxonomic knowledge and a sustainable future. p. 41 1 p.

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

  20. Published

    Natural hybridization – recombination – an ever-ongoing process

    Jacobsen, Niels & Ørgaard, Marian, 2019, In: Thai Forest Bulletin. 47, 1, p. 19-28

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    Molecular evidence of the hybrid origin of Cryptocoryne xpurpurea Ridl. nothovar. purpurea (Araceae)

    Rosazlina, R., Jacobsen, Niels, Ørgaard, Marian & Othman, A. S., 2021, In: PLoS ONE. 16, 1, 14 p., 0239499.

    Research output: Contribution to journal › Journal article › Research › peer-review

  22. Published

    Molecular cytogenetics in the genus Crocus L.

    Ørgaard, Marian, Jacobsen, Niels & Heslop-Harrison, S., 1995, Ikke angivet. Brandham, P. E. A. B. M. D. (ed.). Royal Botanic Gardens, p. 291-300 10 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  23. Published

    Liljer som have- og potteplanter

    Kristiansen, K. M., Ørgaard, Marian & Jacobsen, Niels, 2000, In: Groen Viden, Havebrug. 128, p. 1-8 8 p.

    Research output: Contribution to journal › Journal article › Communication

  24. Published

    Liljer i potter

    Ørgaard, Marian & Jacobsen, Niels, 1996, In: Gartner Tidende. 112, 8, p. 14-15 2 p.

    Research output: Contribution to journal › Journal article › Communication

  25. Published

    Karyotype differentiation and evolution in the genus Hordeum (Poaceae)

    Linde-Laursen, I., Bothmer, R. V. & Jacobsen, Niels, 1995, Ikke angivet. Brandham, P. E. A. B. M. D. (ed.). Royal Botanic Gardens, p. 233-247 15 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

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ID: 32042022