nfoto Posted April 30, 2013 Share Posted April 30, 2013 Rørslett, B. 2013. Potentilla atrosanguinea Lodd. ex Don (Rosaceae). Blood Cinquefoil. Flowers photographed in visible and ultraviolet light. http://www.ultraviol...ood-cinquefoil/ Potentilla atrosanguinea Lodd. ex DonNO: Blodmure An Asian species cultivated as a decorative garden plant and occasionally naturalised from garden escapes. Plant collected and photographed near Oslo, Norway. Image reference: POTE_ATR_I0808078044_VIS.jpgVisible light: Nikon D200, Coastal Optics 60 mm f/4 APO, Baader UV/IR Cut filter, daylight. Image reference: POTE_ATR_I0808078032_UV.jpgUltraviolet light: Nikon D200, Coastal Optics 60 mm f/4 APO, Baader U 2" (Venus) filter, SB-140 flash. P. atrosanguinea appears dark in UV. However petals are clearly differentiated with darker basal spots and brighter tips with presence of conical cells. Iridescence can be seen as well. Bracts are UV bright. [Published 30 Apr 2013] Link to comment
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