Vitenskapelig artikkel
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John A. Elix; Dag Olav Øvstedal; Niek J.M. Gremmen
(2011). A new species of Cresponea (Roccellaceae, Ascomycota) from Gough Island. (ekstern lenke)
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Dag Olav Øvstedal; Alan M. Fryday; R.I. Lewis Smith
(2019). Lecanora muscigena (Lichenized Ascomycota, Lecanorales), a new lichen species in the Lecanora fuscescens group from South Georgia. (ekstern lenke)
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Dag Olav Øvstedal; Niek J.M. Gremmen
(2006). Lichens of sub-Antarctic Heard Island. (ekstern lenke)
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Dag Olav Øvstedal; Ronald Ian Lewis Smith
(2004). Additions and corrections to the Lichens of Antarctica and South Georgia. (ekstern lenke)
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Torgils Fossen; Bjarte Holmelid; Dag Olav Øvstedal
(2019). Bumblebee death associated with Tilia x europaea L. (ekstern lenke)
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Damien Ertz; André A. Ptroot; Bart Van de Vijver
et al. (2014). Lichens from the utsteinen nunatak (Sør Rondane Mountains, Antarctica), with the description of one new species and the establishment of permanent plots. (ekstern lenke)
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Dag Olav Øvstedal; Olav Mjaavatten
(1992). A multivariate comparison between three NW European populations of Artemisia norvegica (Asteraceae) by means of chemometric and morphometric data. (ekstern lenke)
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Dag Olav Øvstedal; R. I. Lewis Smith
(1992). Pertusaria signyae (Lichenes), a new species from the Antarctic. (ekstern lenke)
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A. Vezda; Dag Olav Øvstedal; R. I. Lewis Smith
(1992). Eine neue Gyalecta-Art aus der Antarctis. G. pezizoides sp. n. (lichenisierte Fungi, Gyalectaceae). (ekstern lenke)
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U. Søchting; Dag Olav Øvstedal
(1992). Contributions to the Caloplaca flora of the western Antarctic region. (ekstern lenke)
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Raimundo G. de Oliveira-Júnior; Ana P. de Oliveira; Amanda L. Guimarães
et al. (2014). The first flavonoid isolated from Bromelia laciniosa
(Bromeliaceae). (ekstern lenke)
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Xuan Hong Thy Nguyen; Ole-Johan Juvik; Dag Olav Øvstedal
et al. (2014). 6-Carboxydihydroresveratrol 3-O-β-glucopyranoside - A novel natural product from the Cretaceous relict Metasequoia glyptostroboides. (ekstern lenke)
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Dag Olav Øvstedal; John A. Elix
(2007). Three new lichen species from the French Antilles. (ekstern lenke)
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R. I. L. Smith; Dag Olav Øvstedal
(1994). Solorina spongiosa in Antarctica, an extremely disjunct bipolar lichen. (ekstern lenke)
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H. Thorsten Lumbsch; Teuvo Ahti; Susanne Altermann
et al. (2011). One hundred new species of lichenized fungi: a signature of undiscovered global diversity. (ekstern lenke)
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L. Tollsten; Dag Olav Øvstedal
(1994). Differantiation in floral scent chemistry among populations of Conopodium majus (Apiaceae). (ekstern lenke)
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Dag Olav Øvstedal
(1993). Tre nordnorske lignosar: tromsøbjørk, kola-or og sibirgran. (ekstern lenke)
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Dag Olav Øvstedal; R. I. Smith; [Mangler fornavn] Lewis
(1993). A new Pannaria species from the Antarctic. (ekstern lenke)
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Dag Olav Øvstedal; Ronald I. Lewis Smith
(2011). Four additional lichens from the Antarctic and South Georgia, including a new Leciophysma species. (ekstern lenke)
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Dag Olav Øvstedal; Niek J.M. Gremmen
(2001). The lichens of Marion and Prince Edward Islands. (ekstern lenke)
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Torgils Fossen; Rune Slimestad; Dag Olav Øvstedal
et al. (2000). Covalent anthocyanin-flavonol complexes from flowers of chive, Allium schoenoprasum. (ekstern lenke)
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Dag Olav Øvstedal; Inger Margrethe Haaland
(1996). On the origins of Carex x liidi (Cyperaceae) from Spitzbergen. (ekstern lenke)
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Dag Olav Øvstedal; Inger Margrethe Haaland
(1996). On the origins of Carex x liidi (Cyperaceae) from Spitzbergen. (ekstern lenke)
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Dag Olav Øvstedal; Torgils Fossen; Øyvind Moksheim Andersen
et al. (1996). Characteristic Anthocyanin Pattern from Onions and other Allium spp. (ekstern lenke)
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Dag Olav Øvstedal; John A. Elix; Ronald I. Lewis Smith
(1996). A new species of Parmella (Lichenized Ascomycotina) from the Antarctic. (ekstern lenke)
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Tor Tønsberg; J.I. Johnsen; Dag Olav Øvstedal
(2005). Leptogium britannicum refound in Norway. (ekstern lenke)
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Dag Olav Øvstedal; Louise Lindblom; Kerry Knudsen
et al. (2018). A new species of Acarospora (Acarosporaceae, Acarosporales, lichenized Ascomycota) from the Falkland Islands (Islas Malvinas). (ekstern lenke)
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Dag Olav Øvstedal; Ronald Ian Lewis Smith
(2009). Further additions to the lichen flora of Antarctica and South Georgia. (ekstern lenke)
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Dag Olav Øvstedal; Einar Heegaard
(2001). Biodiversity and vegetation dynamics in the coastal heathlands of western Norway. (ekstern lenke)
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Kjell Torskangerpoll; Rikke Nørbæk; Egil Nodland
et al. (2005). Anthocyanin content of Tulipa species and cultivars and its impact on tepal colours. (ekstern lenke)
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Dag Olav Øvstedal; Torgils Fossen; Øyvind Moksheim Andersen
et al. (1996). Characteristic Anthocyanin Pattern from Onions and other Allium spp. (ekstern lenke)
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Dag Olav Øvstedal
(2018). Maritime species of the genus Verrucaria in Kerguelia. (ekstern lenke)
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Tor Tønsberg; Dag Olav Øvstedal
(1995). Cladonia peziziformis new to Norway from a burnt Calluna heath. (ekstern lenke)
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Dag Olav Øvstedal
(2011). Blankburknekomplekset (Asplenium adiantum-nigrum s.lat) på Vestlandet. (ekstern lenke)
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Dag Olav Øvstedal; Louise Lindblom
(2023). Arrhenia schistidicola (Hygrophoraceae, Agaricales) – a new species on the moss Schistidium crassipilum from western Norway. (ekstern lenke)
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Dag Olav Øvstedal; H. J. M. Gremmen
(1995). Two further biopolar lichens. (ekstern lenke)
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Torgils Fossen; Dag Olav Øvstedal
(2003). Anthocyanins from flowers of the orchids Dracula chimaera and D. cordobae. (ekstern lenke)
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Torgils Fossen; Dag Olav Øvstedal; Rune Slimestad
et al. (2003). Anthocyanins from a Norwegian potato cultivar. (ekstern lenke)
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Alan M. Fryday; Dag Olav Øvstedal
(2012). New species, combinations and records of lichenized fungi from the Falkland Islands (Islas Malvinas). (ekstern lenke)
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J.A. Elix; Dag Olav Øvstedal; N.J.M. Gremmen
(2005). A new Lepraria species from Gough Island, South Atlantic Ocean. (ekstern lenke)
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Dag Olav Øvstedal
(2005). Løvetenner i Hordaland.I-Taraxacum sect Erythrosperma-sandløvetenner. (ekstern lenke)
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Dag Olav Øvstedal; J.A. Elix; P.A. Broady
(2020). A new sorediate species of Amandinea (Caliciaceae)Ascomycota) from Antarctica. (ekstern lenke)
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Dag Olav Øvstedal; Carlos Schaefer
(2013). A new lichen species from the Heritage Range, Ellsworth Mountains, Antarctica. (ekstern lenke)
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Ryszard Ochyra; Dag Olav Øvstedal; Paul A. Broady
(2022). The distribution of lichens and mosses at Edward VII Peninsula, Marie Byrd Land, Antarctica. (ekstern lenke)
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Fabian A. Seymour; Peter D. Crittenden; Nora Wirtz
et al. (2007). Phylogenetic and morphological analysis of Antarctic lichenforming Usnea species in the group neuropogon. (ekstern lenke)
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