Andrea B. Posted May 20, 2013 Share Posted May 20, 2013 Blum, A.G. (2013) Veronica arvensis L. (Plantaginaceae). Corn Speedwell. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...corn-speedwell/Middletown, New Jersey, USA14 May 2013Wildflower Comment: The zygomorphic flower, quite small (about 3/16") and almost stalkless, is UV-light with a dark eye. Reference:1. Newcomb, L. (1977) Corn Speedwell, page 96. Newcomb's Wildflower Guide. Little, Brown & Co., New York City, NY. Equipment [Nikon D600-broadband + Carl Zeiss 60mm f/4.0 UV-Planar] Visible Light [f/8 for 1/250" @ ISO 500 in Sunlight with Baader UVIR-Block Filter] Ultraviolet Light [f/8 for 1/200" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter] Link to comment Share on other sites More sharing options...
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