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--- gymnadenia_odoratissima_l._rich [2015/06/13 11:38]
127.0.0.1 Externe Bearbeitung
+++ gymnadenia_odoratissima_l._rich [2017/07/26 22:11]
andreas
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 Gymnadenia odoratissima (L.) Rich. - Orchidaceae \\
-short spurred fragrant orchid , scented gymnadenia, **Wohlriechende Händelwurz**
+short spurred fragrant orchid , scented gymnadenia, **Wohlriechende Händelwurz**, Duft-Händelwurz
-Perennial herb, up to 30cm high, native to Central Europe; leaves lanceolate; flowers white to purplpe, fragrant. \\
+Perennial herb, up to 30cm high, native to Central Europe; leaves lanceolate; flowers white to purple, fragrant. \\
 "The fragrant orchid is characterized by intense vanilla-like scented flowers." \\
 [[http://de.wikipedia.org/wiki/Wohlriechende_H%C3%A4ndelwurz]]
-"In G. odoratissima, 44 volatiles were identified, of which seven were physiologically active (benzaldehyde, phenylacetaldehyde, benzyl acetate, 1-phenyl-2,3-butandione, phenylethyl acetate, eugenol, and one unknown compound). In field bioassays using a mixture of the active G. odoratissima compounds and phenylacetaldehyde alone we caught a total of 25 moths, some of which carried Gymnadenia pollinia." \\
+The flower fragrance may be characterised as //'aromatic spicy-floral'// with a basic accord consisting of phenylethanol, benzyl alcohol, and benzaldehyde, "...and deriving its pleasant character from a series of minor but olfactorily important components such as citral, cinnamic aldehyde, cinnamic alcohol, eugenol and vanilline. In chemical terms, the scent of Gymnadenia odoratissima is quite closely related to that of [[nigritella_nigra_l._rchb._f|Nigritella nigra]]." \\
+[The scent of orchids: olfactory and chemical investigations., Kaiser, R., Basel 1993, 177]
+|{{:benzaldehyde.jpg|benzaldehyde}} \\ benzaldehyde \\ //(cherry-like)// | {{:phenylacetaldehyde.jpg|phenylacetaldehyde}} \\ phenylacetaldehyde \\ //(green-floral, honey)// | {{:benzylacetate.jpg|benzyl acetate}} \\ benzyl acetate \\ //(sweet floral)// |{{:eugenol.jpg|eugenol}} \\ eugenol \\ //(clove-like)// | {{:vanillin.jpg| vanillin}} \\ vanillin |
+Of 44 volatiles identified in the flower scent, seven were physiologically active in pollinators: Benzaldehyde (8.0% day, 5.7% night), phenylacetaldehyde, benzyl acetate (20.8% day, 17.2% night), 1-phenyl-2,3-butandione (7.6% day, 8.4% night), phenylethyl acetate (24.7% day, 20.8% night), eugenol (4.6% day, 3.1% night), and one unknown compound. Phenylacetaldehyde increased during the night: 9.4% day, 24.7% night - the most pronounced change in odour emission. On GC, vanillin co-eluted with (Z)-isoeugenol (1.9% day, 3.3% night; sum).\\
 [Floral scent emission and pollinator attraction in two species of Gymnadenia (Orchidaceae)., Huber, F.K., Kaiser, R., Sauter, W., Schiestl, F.P., Oecologia, Vol.142(4), 2005, 564-575]
-{{http://plantillustrations.org/ILLUSTRATIONS_HD/214336.jpg?500}} \\
+{{:gymnadenia_odoratissima.jpg?500}} \\
-Dietrich, A.G., Flora regni borussici, vol. 1: t. 66 (1832-1833) [A.G. Dietrich] \\
+Dietrich, A.G., Flora regni borussici, vol.1 t.66 (1832-1833) \\
 [[http://plantillustrations.org/species.php?id_species=485171]]
+{{http://www.botanische-spaziergaenge.at/Bilder/Konica_3/PICT0226.JPG}} \\
+Gymnadenia odoratissima \\ © Rolf Marschner (2006),
+[[http://botanische-spaziergaenge.at/viewtopic.php?f=520&t=2985| www.botanische-spaziergaenge.at]]

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