Niels Jacobsen

Niels Jacobsen

Professor, emeritus

ORCID: 0000-0003-3932-1293

Publication year:
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26 - 50 out of 117Page size: 25
  1. 2020
  2. Published

    In the memory of Josef Bogner

    Jacobsen, Niels, 2020, In: The IAS Newsletter. 42, 2, p. 5-6 2 p.

    Research output: Contribution to journal › Journal article › Research

  3. Published

    Wasserpflanzen in einem Fluss mit Gezeitenzone am Sungai Sedili Kechil, Johor, Malaysia

    Jacobsen, Niels, Ganapathy, H. B., Mangsor, K. N. A., Othman, A. S., Rahman, S. N. A., Rosazlina, R. & Siow, J., 2020, In: Aqua Planta. 45, 4, p. 129-139 11 p.

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

  4. 2019
  5. Published

    Cryptocoryne ciliata var. bogneri - eine neue tetraploide Varietät aus Sarawak

    Jacobsen, Niels, Bastmeijer, J. D., Jensen, Karen Rysbjerg & Ørgaard, Marian, 2019, In: Aqua Planta. 2, p. 52-63 6 p.

    Research output: Contribution to journal › Journal article › Research

  6. Published

    Lagenandra keralensis und L. meeboldii

    Jacobsen, Niels, Bastmeijer, J. D., Wongso, S. & Ørgaard, Marian, 2019, In: Aqua Planta. 3, p. 84-91

    Research output: Contribution to journal › Journal article › Research

  7. Published

    Artificial hybrids in Cryptocoryne (Araceae) 3. Hybridization between species from Borneo

    Jacobsen, Niels, Bastmeijer, J. D., Idei, T., Ipor, I., Wongso, S. & Ørgaard, Marian, 2019, In: Aroideana. 42, 2&3, p. 57-90

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

  8. Published

    Artificial hybrids in Cryptocoryne (Araceae) 4. Hybridization between species from Malay Peninsula and Borneo

    Jacobsen, Niels, Bastmeijer, J. D., Idei, T., Wongso, S. & Ørgaard, Marian, 2019, In: Aroideana. 42, 2&3, p. 91-118

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

  9. Published

    Artificial hybrids in Cryptocoryne (Araceae) 5. Hybridization with species from Sumatera, Indonesia

    Jacobsen, Niels, Bastmeijer, J. D., Waser, A., Wongso, S. & Ørgaard, Marian, 2019, In: Aroideana. 42, 2&3, p. 119-138

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

  10. Published

    Artificial hybrids in Cryptocoryne (Araceae). 1. Hybridization between Sri Lankan species within the 2n = 28 chromosome group

    Jacobsen, Niels & Ørgaard, Marian, 2019, In: Aroideana. 42, 1, p. 76-106

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

  11. Published

    Artificial hybrids in Cryptocoryne (Araceae). 2. Hybridization between species of the Malay Peninsula

    Jacobsen, Niels, Bastmeijer, J. D., Bin Othman, A. S., Sookchaloem, D. & Ørgaard, Marian, 2019, In: Aroideana. 42, 1, p. 107-137

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

  12. Published

    Four new Cryptocoryne (Araceae) from Sumatera, Indonesia: variety and three interspecific natural hybrids

    Wongso, S., Asih, N. P. S., Bastmeijer, J. D., Jensen, Karen Rysbjerg, Reichert, W., Ørgaard, Marian & Jacobsen, Niels, 2019, In: Taiwania. 64, 3, p. 326-338

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

  13. 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

  14. 2018
  15. Published

    A new tetraploid variety of Cryptocoryne ciliata (Araceae) from Sarawak

    Jacobsen, Niels, Bastmeijer, J. D., Jensen, Karen Rysbjerg & Ørgaard, Marian, 2018, In: Willdenowia. 48, 3, p. 425-432

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

  16. 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

  17. Published

    The opening twist (ptyxis) of the spathes of Lagenandra and Cryptocoryne (Araceae)

    Jacobsen, Niels, Bastmeijer, J. & Ørgaard, Marian, 2018, In: Aroideana. 41, 2-3, p. 201-217

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

  18. 2017
  19. Published

    Cryptocoryne crispatula (Araceae) in Thailand seen with the help of AFLP glasses

    Jacobsen, Niels, Bastmeijer, J., Christensen, C., Idei, T., Lange, Conny Bruun Asmussen, Orabi, J., Sookchaloem, D., Toneatto, F. & Ørgaard, Marian, 2017, Abstract of 17th Flora of Thailand Conference: Taxonomic knowledge and a sustainable future. p. 143 1 p.

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

  20. Published

    Cryptocoryne crispatula var. Tonkinensis and var. Kubotae

    Jacobsen, Niels, Bastmeijer, J. D. & Ørgaard, Marian, 2017, In: The Aquatic Gardener. 30, 4, p. 24-31 8 p.

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

  21. Published

    Cryptocoryne crispatula var. tonkinensis und var. kubotae

    Jacobsen, Niels, Bastmeijer, J. D., Ørgaard, Marian & Bogner, J. (Translator), 2017, In: Aqua Planta. 3, p. 90-102 13 p.

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

  22. 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

  23. 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

  24. 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

  25. 2016
  26. Published

    Cryptocoryne aura (Araceae), a new species from West Kalimantan, Indonesia

    Wongso, S., Ipor, I. B., Tawan, C. S., Budianto, H., Bastmeijer, J. D. & Jacobsen, Niels, 2016, In: Willdenowia. 46, 2, p. 275-282 8 p.

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

  27. Published

    Cryptocoryne wongsoi (Araceae), a new species from Sumatera, Indonesia

    Bastmeijer, J. D., Budianto, H., Ipor, I. B., Ørgaard, Marian & Jacobsen, Niels, 2016, In: Aroideana. 39, 2, p. 4-14 11 p.

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

  28. Published

    Cryptocoryne ×batangkayanensis (Araceae) und Bemerkungen zu einigen anderen Hybriden

    Jacobsen, Niels, Bastmeijer, J. D., Ipor, I., Jensen, Karen Rysbjerg, Wongso, S. & Ørgaard, Marian, 2016, In: Aqua Planta. 2, p. 54-66 13 p.

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

  29. Published

    Cryptocoryne x batangkayensis and notes on some other hybrids

    Jacobsen, Niels, Bastmeijer, J. D., Ipor, I. B., Jensen, Karen Rysbjerg, Wongso, S. & Ørgaard, Marian, 2016, In: The Aquatic Gardener. 29, 4, p. 37-45 9 p.

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

  30. Published

    Hybrids and the Flora of Thailand revisited: hybridization in the South-East Asian genus Cryptocoryne (Araceae)

    Jacobsen, Niels, Bastmeijer, J. D., Bogner, J., Budianto, H., Ganapathy, H. B., Idei, T., Ipor, I. B., Komala, T., Othman, A. S., Rosazlina, R., Siow, J., Wongso, S. & Ørgaard, Marian, 2016, In: Thai Forest Bulletin (Botany). 44, 1, p. 53-73 21 p.

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

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