Niels Jacobsen
Professor, emeritus
Section for Organismal Biology
Thorvaldsensvej 40
1871 Frederiksberg C
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Crocus - Evolution and domestication
Ørgaard, Marian & Jacobsen, Niels, 2008, Xth Symposium of the International Organisation of Plant Biosystematists. p. 17 1 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research
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Crocus in the northeastern Mediterranean region
Ørgaard, Marian, Jacobsen, Niels & Heslop-Harrison, J. S., 2007, In: Chromosome Research. 15, Suppl. 1, p. 10 1 p.Research output: Contribution to journal › Conference abstract in journal › Research
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Cryptocoryne bangkaensis Bastmeijer, ein neuer Name für eine gut bekannte Cryptocoryne von Sumatra (Indonesien)
Bastmeijer, J. D., Jacobsen, Niels & Bogner, J. (Translator), 2007, In: Aqua Planta. 32, p. 44-55 12 p.Research output: Contribution to journal › Journal article › Research
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Cryptocoryne crispatula Engler var. flaccidifolia N. Jacobsen im südlichen Thailand
Jacobsen, Niels & Soochaloem, D., 2006, In: Aqua Planta. 31, 1, p. 16-23 8 p.Research output: Contribution to journal › Journal article › Communication
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Cryptocoryne ferruginea Engl. from Sekadau, West KAlimantan province, Indonesia
Bastmeijer, J. D., Kishi, H., Takahashi, N., Wongso, S. & Jacobsen, Niels, 2013, In: The Aquatic Gardener. 26, 4, p. 33-38 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Cryptocoryne fusca De Wit (Araceae), a new record for Sarawak
Ipor, I. B., Tawan, C. S. & Jacobsen, Niels, 2006, In: Sarawak Museum Journal. 62, 83, p. 175-184 10 p.Research output: Contribution to journal › Journal article › Communication
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Cryptocoryne zaidiana Ipor & Tawan (Araceae), eine kürzlich neu beschriebene Art aus Sarawak (Malaysia)
Ipor, I. B., Tawan, C. S. & Jacobsen, Niels, 2006, In: Aqua Planta. 31, 2, p. 52-61 10 p.Research output: Contribution to journal › Journal article › Communication
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Cryptocoryne of the Nam Lik watershed in northwestern Laos
Andersen, T., Pedersen, O., Christensen, C. & Jacobsen, Niels, 2006, In: Aquatic Gardener. 19, 1, p. 24-32 9 p.Research output: Contribution to journal › Journal article › Communication
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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
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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
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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
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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
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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
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Cryptocoryne esquerionii (Araceae), a remarkable new species discovered by a citizen scientist in Zamboanga Peninsula, southwestern Philippines
Mark, A. K. N., Reagan, J. T. V., Wongso, S. & Jacobsen, Niels, 2023, In: Nordic Journal of Botany. 2023, 3Research output: Contribution to journal › Journal article › Research › peer-review
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Cryptocoryne matakensis (Araceae, eine neue Art von den Anambas-Inseln (Indonesien)
Bastmeijer, J. D., Nagasawa, K. & Jacobsen, Niels, 2014, In: Aqua Planta. 2, p. 64-71 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Cryptocoryne nurii var. raubensis, a new calcicolousvariety from Pahang, Peninsular Malaysia
Jacobsen, Niels, Bastmeijer, J. D., Ganapathy, H. B., Mangsor, K. N. A., Mansor, M., Othman, A. S., Rahman, S. N. A., Rosazlina, R. & Siow, J., 2015, In: The Aquatic Gardener. 28, 2, p. 32-43 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Cryptocoryne xbatangkayanensis (Araceae), a new hybrid from Sarawak
Ipor, I. B., Ørgaard, Marian & Jacobsen, Niels, 2015, In: Willdenowia. 45, 2, p. 183-187 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Cryptocoryne hybrids (Araceae) 2: Two Cryptocoryne (Araceae) hybrids from southern Peninsular Malaysia
Jacobsen, Niels, Bastmeijer, J. D., Jensen, Karen Rysbjerg, Othman, A. S. & Ørgaard, Marian, 2020, In: Aroideana. 43, 1&2, p. 240-254 15 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Cryptocoryne hybrids (Araceae) 3: Hybrids between Cryptocoryne cordata and Cryptocoryne nurii from southern Peninsular Malaysia
Jacobsen, Niels, Bastmeijer, J. D., Ganapathy, H., Ipor, I., Jensen, Karen Rysbjerg, Komala, T., Mangsor, K. N. A., Othman, A. S., Rosazlina, R., Siow, J. & Ørgaard, Marian, 2020, In: Aroideana. 43, 1&2, p. 255-284 30 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Cryptocoryne hybrids (Araceae) 4: A Cryptocoryne hybrid from the Meratus mountains, South Kalimantan, Indonesia
Wongso, S., Bastmeijer, J. D., Idei, T., Jensen, Karen Rysbjerg, Ørgaard, Marian & Jacobsen, Niels, 2020, In: Aroideana. 43, 1&2, p. 285-298 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Cryptocoryne-Hybriden (Araceae): Cryptocoryne x ikezewaldiae und C. x agusii, zwei neue Hybriden aus West-Kalimantan, Indonesien
Wongso, S., Bastmeijer, J. D., Hendrik, Jensen, Karen Rysbjerg, Kishi, H., Ørgaard, Marian, Takahashi, N. & Jacobsen, Niels, 2020, In: Aqua Planta. 45, 2, p. 44-57 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Lagenandra keralensis und L. meeboldii
Jacobsen, Niels, Bastmeijer, J. D., Wongso, S. & Ørgaard, Marian, 2019, In: Aqua Planta. 3, p. 84-91Research output: Contribution to journal › Journal article › Research
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Lagenandra ’Cora Bastmeijer’, an artificial hybrid between the Indian L. meeboldii and the Sri Lankan L. thwaitesii (Araceae)
Bastmeijer, J. D. & Jacobsen, Niels, 2020, In: Aroideana. 43, 3&4, p. 54-58 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
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A new Cryptocoryne species (Araceae) from the Schwaner mountains, West Kalimantan, Indonesia
Wongso, S., Hendrik, Jensen, Karen Rysbjerg, Ørgaard, Marian & Jacobsen, Niels, 2020, In: Nordic Journal of Botany. 38, 4, 5 p., 02716.Research output: Contribution to journal › Journal article › Research › peer-review
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A new calcicolous variety of Cryptocoryne nurii Furtado (Araceae) from Pahang, Peninsular Malaysia
Jacobsen, Niels, Bastmeijer, J. D., Ganapathy, H. B., Mangsor, K. N. A., Mansor, M., Sofiman Othman, A., Rahman, S. N. A., Rosazlina, R. & Siow, J., 2015, In: Malayan Nature Journal. 65, 4, p. 230-239 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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A new species of Cryptocoryne (Araceae) from Borneo
Ipor, I. B., Tawan, C. S. & Jacobsen, Niels, 2005, In: Gardens' Bulletin, Singapore. 57, p. 1-6 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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. 425-432Research output: Contribution to journal › Journal article › Research › peer-review
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A new variety of Cryptocoryne crispatula Engl. (Araceae) from Thailand
Jacobsen, Niels, Bastmeijer, J., Bongcheewin, B., Idei, T., Sookchaloem, D. & Ørgaard, Marian, 2015, In: Thai Forest Bulletin (Botany). 43, p. 104-110 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
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A new variety of Cryptocoryne versteegii (Araceae) from Irian Jaya Tengah, Indonesia
Jacobsen, Niels, Bastmeijer, J. D., Edwards, P. J., Johns, R. J., Taka-Hashi, N. & Wongso, S., 2014, In: Willdenowia. 44, 3, p. 385-391 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
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A reassessment of the genus Barclaya (Nymphaeaceae) including three new species
Jacobsen, Niels, Ganapathy, H., Ipor, I., Jensen, Karen Rysbjerg, Komala, T., Mangsor, K. N. A., Nordin, F. A., Othman, A. S., Rusly, R., Siow, J., Wongso, S. & Ørgaard, Marian, 2022, In: Nordic Journal of Botany. 2022, 5, 41 p., e03392.Research output: Contribution to journal › Journal article › Research › peer-review
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Araceae
Heng, L., Guanghua, Z., Boyce, P. C., Murata, J., Hetterscheid, W. L. A., Bogner, J. & Jacobsen, Niels, 2010, Flora of China: Acoraceae through Cyperaceae. Zhengyi, W., Raven, P. H. & Deyuan, H. (eds.). Beijing: Science Press, Beijing, Vol. 23. p. 3-5 3 p.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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Araceae
Boyce, P. C., Sookchaloem, D., Hettterscheid, W. L. A., Gusman, G., Jacobsen, Niels, Idei, T. & Van Du, N., 2012, Flora of Thailand: Acoraceae & Araceae. The Forest Herbarium, Vol. 11, Part 2. p. 101-321 + Plates XLV-LVIIIResearch output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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Artificial hybrids between species of Lagenandra (Araceae)
Bastmeijer, J. D. & Jacobsen, Niels, 2020, In: Aroideana. 43, 3&4, p. 59-96 38 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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. 57-90Research output: Contribution to journal › Journal article › Research › peer-review
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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. 91-118Research output: Contribution to journal › Journal article › Research › peer-review
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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. 119-138Research output: Contribution to journal › Journal article › Research › peer-review
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Artificial hybrids in Cryptocoryne (Araceae) 6. Hybridization between various species
Jacobsen, Niels, Bastmeijer, J. D., Idei, T., Wongso, S. & Ørgaard, Marian, 2020, In: Aroideana. 43, 1&2, p. 225-239 15 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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. 76-106Research output: Contribution to journal › Journal article › Research › peer-review
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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. 107-137Research output: Contribution to journal › Journal article › Research › peer-review
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Complex metabolism of aromatic glucosinolates in Pieris rapae caterpillars involving nitrile formation, hydroxylation, demethylation, sulfation, and host plant dependent carboxylic acid formation
Agerbirk, Niels, Olsen, C. E., Poulsen, E., Jacobsen, Niels & Hansen, Paul Robert, 2010, In: Insect Biochemistry and Molecular Biology. 40, 2, p. 126-137 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Crocus cartwrightianus on the Attica Peninsula
Jacobsen, Niels & Ørgaard, Marian, 2004, In: Acta Horticulturae. p. 65-69 5 p.Research output: Contribution to journal › Conference article › Research › peer-review
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Cryptocoryne: Fischer ex Wydler, Linnaea 5:428. 1830.
Heng, L. & Jacobsen, Niels, 2010, Flora of China: Acoraceae through Cyperaceae. Zhengyi, W., Raven, P. H. & Deyuan, H. (eds.). Beijing: Science Press, Beijing, Vol. 23. p. 20-22 3 p.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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Cryptocoryne of peninsular Malaysia
Othman, A. S., Jacobsen, Niels & Mansor, M., 2009, Penerbit Universiti Sains Malaysia. 102 p.Research output: Book/Report › Book › peer-review
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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
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Cryptocorýne xpurpúrea Ridley nothovar. borneoensis N. Jacobsen, Bastmeijer & Y. Sasaki (Araceae), eine neue Hybridvarietät aus Kalimantan
Jacobsen, Niels, Bastmeijer, J. D. & Sasaki, Y., 2002, In: Aqua Planta. 27, 4, p. 152-154 3 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Der ¤Cryptocorýne cordáta Griffith: Komplex (Araceae) in Malesien
Jacobsen, Niels, 2002, In: Aqua Planta. 27, 4, p. 150-151 2 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Die Bestäubung der Gattung Cryptocoryne (Araceae)
Jacobsen, Niels & Ørgaard, Marian, 2020, In: Aqua Planta. 45, 1, p. 4-19 16 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Discovery through citizen science: Cryptocoryne paglaterasiana (Araceae), a new endangered species from Tampilisan, Zamboanga del Norte, Western Mindanao
Naive, M. A. K., Lagud, Y. J. & Jacobsen, Niels, 2022, In: Taiwania. 67, 4, p. 539-543 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
ID: 32042022
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A new variety of Cryptocoryne versteegii (Araceae) from Irian Jaya Tengah, Indonesia
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Elements of the evolution in the genus Cryptocoryne (Araceae)
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Crocus - Evolution and domestication
Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research
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