nfoto Posted November 18, 2015 Share Posted November 18, 2015 Rørslett, B. 2015. Hemimeris racemosa (Houtt.)Merr. (Scrophulariaceae). Yellow-faces, Geelgesiggie. African flowers photographed in visible and ultraviolet light. http://www.ultraviol...meris-racemosa/ Hemimeris racemosa (Houtt.)Merr. (incl. Hemimeris montana L.fil.) Plants found and photographed in the Kamiesberg area, near Kamieskroon, Northern Cape province, South Africa, at an elevation of 1050 m asl, 6 September 2015. The specimens were growing along a intermittent stream, in shade. They were identified as H. racemosa by having saccate, non-spurred flowers and ovate, toothed leaves. Image reference: HEME_RAC_G1509066574_VIS Visible light: Nikon Df, Voigtländer 125 mm f/2.5 APO-Lanthar lens, daylight. Image reference: HEME_RAC_I1509062786_UV Ultraviolet light: Nikon D3200, UV-Nikkor 105 mm f/4.5 lens, Baader u2" (Venus) filter (built-in), SB-140 flash. The corolla of H. racemosa is densely covered with conical cells. In UV, these lead to a shimmering iridescence of the flower. References: http://www.ultraviol...-r%C3%B8rslett/ [ Published 18 November 2015] Link to comment
DaveO Posted November 18, 2015 Share Posted November 18, 2015 I see you are now in the same family as Eremophilia and there is certainly a resemblance in the UV image, I would be very interested to see if you find any which have dark-blue UV signatures. When South Africa and Australia were part of Gondwana Land they were separated by Antarctica but of course the climate was not frozen in those days (even I can't remember so far back). Dave Link to comment
nfoto Posted November 19, 2015 Author Share Posted November 19, 2015 Coming up, Dave. It will take me weeks to post all these African species I documented on this trip. The Scrophulariaceae is one of the larger families in South Africa. Link to comment
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