nfoto Posted June 23, 2013 Share Posted June 23, 2013 Rørslett, B. 2013. Platanthera chlorantha (Cust.)Rchb. (Orchidaceae). Greater Butterfly-Orchid. Flowers photographed in visible and ultraviolet light. http://www.ultraviol...tterfly-orchid/ Platanthera chlorantha (Cust.)Rchb.Syn. Platanthera montnaa auct. NO:Grov nattfiolSE: Grönvit nattfiol; storyxneDK: Skov-Gøgelilje FI: Keltalehdokki DE: Berg-Waldhyazinthe EN: Greater Butterfly-orchid This is a taller relative to P. bifolia and having a similar mainly European distribution. It is seen in open habitats such as meadows and forest clearings and often occurs with P. bifolia. Along the coasts P. chlorantha may be the most frequent of the two. These species can hybridise as well, but apparently the hybrid is rare. I have been looking for the hybrid for decades but so far without any success. Flowering takes place in June and July and the terminal spike carries greenish white flowers which are sweetly fragrant at night time. Plants photographed in situ at Kvam, Western Norway 15 June 2009. Image reference: PLAT_CHL_I0906159267_VIS.jpgVisible light: Nikon D200, UV-Nikkor 105 mm f/4.5 lens, Baader UV/IR Cut filter, daylight. Image reference: PLAT_CHL_I0906159266_UV.jpgUltraviolet ight: Nikon D200, UV-Nikkor 105 mm f/4.5 lens, Baader U2" (Venus) filter, SB-140 flash. In UV, P. chlorantha appears less bright than its relative P. bifolia. The labellum carries darker blotches and so do the wings in particular along the margins. References:http://www.ultraviol...ure-references/ [Published 25 June 2013] Link to comment
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