Nico Posted June 21, 2013 Share Posted June 21, 2013 Chalwatzis, N. 2013. Cytisus scoparius (L.) Link (Fabaceae). Broom. Flowers photographed in visible and ultraviolet light, more samples and induced visible fluorescence. Cytisus scoparius (L.) LinkSyn. Sarothamnus scoparius (L.) Wimm. ex W. D. J. Koch, Spartium scoparium L. NO: GyvelSE: Harris; harginstDK: GyvelFI: JänönvihmaDE: BesenginsterEN: Broom UV-images of C. scoparius have been published before by Rørslett, (2013): http://www.ultraviol...d__445#entry445However, the samples that are shown here exhibit a different UV-signature. Since different parts of the flowers become visible as it opens, images were taken from multiple states.Flowers were photographed and collected at three different locations in the Rhein-Main area, Germany, June 4, 10 and 20 2013. All images were taken with a broadband-modified Panasonic Lumix G1 and the EL-Nikkor 80mm/f5.6 at f8-11. Visible light image with IR-neutralisation-filter ND (Optic Makario), ISO 100image reference: NCH_P1090006_130604 UV-image, Baader U-filter 2”, ISO 400, sunlightimage reference: NCH_P1090011_130604 Visible light image with the Baader UV/IR cut filter, ISO 100image reference: NCH_P1090413_130620 UV-image, Baader U-filter 2”, ISO 400, sunlightimage reference: NCH_P1090419_130620 Visible light image with the Baader UV/IR cut filter, ISO 100image reference: NCH_P1090425_130620 UV-image, Baader U-filter 2”, ISO 400, sunlightimage reference: NCH_P1090440_130620 UV-induced visible fluorescence: Panasonic Lumix GH2, Leica Elmarit 45/f2,8image reference: NCH_P1180871_130610 The C. scoparius flowers shown here have a quite complex UV-signature with parts of the flower converting to bright yellow, others that are UV dark and finally an inner part that converts to a (pale) blue.UV dark parts show an orange fluorescence, darker than the rest of the flower that appear in a greenish yellow. [published: June 22 2013] Link to comment
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