nfoto Posted May 26, 2013 Share Posted May 26, 2013 Rørslett, B. 2013. Sambucus racemosa L. (Caprifoliaceae). Elderberry. Flowers photographed in visible and ultraviolet light, with fluorescence. http://www.ultraviol...osa-elderberry/ Sambucus racemosa L.NO: Rødhyll; raudhyllSE: Druvfläder; druvhyll; klashyllDK: Drue-HyldFI: Selja; TerttuseljaDE: Trauben-Holunder EN: Elderberry; Red-berried Elder This is a large shrub up to 3-4 m tall, native to Europe and having a circumboreal distribution when all the various races are taken into account. It may be introduced to Northern Europe as a decorative and medicine plant by monks, but is fully naturalised a long time ago.The shock red berries are eagerly sought after by birds and the species can probably thank birds for its rapid dispersal into new locations. The specimen had introduced itself to my garden near Oslo, Norway. The flowers were photographed 26 May 2012. The perianth appears nearly white on the reference capture, but there is no uncertainty as to the identification if the plant. So I regard the offwhite colour as being within the normal range of variation shown by S. racemosa. The usual colour of the perianth is a yellowish green. Image reference: SAMB_RAC_I1205360209_VIS.jpgVisible light: Panasonic DMC-GH2, UV-Nikkor 105 mm f/4.5 lens, Baader UV/IR Cut filter, daylight. There is a smudge on the rightmost perianth, probably a parasitic fungus. Image reference: SAMB_RAC_I1205360207_UV.jpgUltraviolet light: Panasonic DMC-GH2, UV-Nikkor 105 mm f/4.5 lens, Baader U2 " (Venus) filter, SB-140 flash. Image reference: SAMB_RAC_I1205360213_UVIFL.jpgUV-induced visible fluorescence: Panasonic DMC-GH2, UV-Nikkor 105 mm f/4.5 lens, Baader UV/IR Cut filter + Kodak 2E, Nichia UV LED torch (narrowband peak 365 nm) [Published 26 May 2013] Link to comment
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