Andrea B. Posted February 24, 2013 Share Posted February 24, 2013 Blum, A.G. 2013. Spiraea alba var. latifolia (Ait.) Dippel. (Rosaceae). White Meadowsweet. Flowers photographed in ultraviolet and visible light, fluorescence included. http://www.ultraviol...ite-meadowsweetSouthwest Harbor, Maine, USA14 July 2012 Comment: Flora Nova Angliae (1) notes that S. alba var. alba is known from Massachusetts and Vermont while S. alba var. latifolia occurs more widely in New England. Synonyms:Spiraea alba var. septentrionalis (Fern.) SeymourSpiraea latifolia (Ait.) Borkh.Spiraea latifolia (Ait.) Borkh. var. septentrionalis Fern.Spiraea septentrionalis (Fern.) A. & D. LöveReference:1. New England Wild Flower Society (2013) Spiraea alba Du Roi. White Meadowsweet. http://gobotany.newe...s/spiraea/alba/ Equipment [Nikon DX00-broadband + Carl Zeiss 60mm f/4.0 UV-Planar] Visible Light [f/11 for 1/60" @ ISO 200 with onboard Flash and Baader UVIR-Block Filter] Ultraviolet Light [f/11 for 1/60" @ ISO XXX with SB-14 UV-modified Flash with Baader UV-Pass Filter] Detail from Visible Frame Detail from Ultraviolet Frame UV-Induced Visible Fluorescence [f/xxx for 1/xxx" @ ISO xxx. Nichia 365 UV-Led + Baader-UV-Pass Filter. Lens + Baader UVIR-Block Filter. Photographed in Darkness.]Note: This photo has not been formally colour-calibrated, so the colours of the Fluorescence may not be entirely accurate.The five fluorescent stigmas and fluorescent pollen are nicely seen. Link to comment
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