Andrea B. Posted March 26, 2015 Share Posted March 26, 2015 Blum, A. G. (2015) Galium mollugo L. (Rubiaceae) Whorled Bedstraw. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...orled-bedstraw/ Southwest Food Mart, Southwest Harbor, Maine, USA08 July 2014Wildflower Synonyms: Wild MadderSmooth BedstrawWhite BedstrawHedge BedstrawComment:Fluffy, fragrant clouds of yellow-budded, white-flowered G. mollugo are everywhere for a while in July.The tiny flowers are very UV-absorbing with a bit of iridescence. Reference:1. New England Wild Flower Society (2014) Galium mollugo L. Whorled Bedstraw. https://gobotany.new...galium/mollugo/ Visible Light [f/9 for 1/1000" @ ISO-400 with Nikon Df + Nikon 60mm f/2.8G Micro-Nikkor] Equipment [Nikon D600-broadband + Carl Zeiss 60mm f/4.0 UV-Planar]for the next four photos Visible Light [f/11 for 1.3" @ ISO-400 with onboard Flash and Baader UVIR-Block Filter] Ultraviolet Light [f/11 for 25" @ ISO-400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]A very long exposure was taken to fire the UV-flash three times. Visible Light [Rotated, unresized crop from the preceding photo.]The textured surface of the tiny petals is evident under UV light. UV-Induced Visible Fluorescence [f/16 for 21/xxx" @ ISO-100. Nichia 365 UV-Led, unfiltered. Lens + Baader UVIR-Block Filter. Photographed in Semi-darkness.]The anthers and pollen are visibly fluorescent under UV light. The petals are reflecting a bit of blue light leaked from the UV-Led. These colours are unprofiled and may not be quite accurate. Link to comment
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