Andrea B. Posted March 13, 2013 Share Posted March 13, 2013 Blum, A.G. (2013) Trichoptilium incisum (A. Gray) A. Gray (Asteraceae) Yellowdome. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...sum-yellowdome/ Joshua Tree National Park, California, USAalong Cottonwood Road03 March 2012 Comment: T. incisum is the single member of genus Trichoptilium. The flower is uniformly UV-dark which makes it stand out against the gravelly UV-bright desert floor. Reference:1. Jepson eFlora (2012) Trichoptilium incisum. Jepson Herbarium, U. of Cal.-Berkeley, Berkeley, CA. http://ucjeps.berkel...IJM.pl?tid=5455 Equipment [Nikon D300-broadband + Carl Zeiss 60mm f/4.0 UV-Planar] Visible Light [f/4 for 1/250" @ ISO 400 in Sunlight with Baader UVIR-Block Filter] Ultraviolet Light [f/4 for 1/250" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter] Link to comment
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