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dorstenia_turnerifolia_fisch._c.a.mey

Dorstenia turnerifolia Fisch. & C.A.Mey. - syn.: Dorstenia argentata Hook. f. - Moraceae

Herb or subhrub, native to eastern Brazil.
https://www.gbif.org/species/3762794
http://legacy.tropicos.org/Name/21300161?tab=distribution

„The most striking characteristic of Dorstenia is their reproductive structure, called pseudanthium (Greek for „false flower“) or in Moraceae hypanthium, which is composed of clusters of tiny unisexual flowers on a disc- or cup-shaped receptacle that are often adorned with bracts of various sizes and shapes.“
https://en.wikipedia.org/wiki/Dorstenia

geosmin.jpg
(-)geosmin
dehydrogeosmin
(+)-dehydrogeosmin

Main componets of the flower scent are the (E/Z)-7-methyl-1,6-dioxaspiro-[4.5]decanes (30%). Olfactorily the scent is dominated by (-)-geosmin (0.2%) accompanied by dehydrogeosmin (0.01%). Together with fruit esters like methyl butyrate (20%), 2-methylbutyl butyrate (5.9%), 2-butyl butyrate (4.8%), and hexyl butyrate (1.2%), an extremely unusual musty-fruity scent is created.
[Kaiser, Roman. „Scents from rain forests.“ CHIMIA International Journal for Chemistry 54.6 (2000): 346-363]

ASCII
Dorstenia turnerifolia (2007) CC BY-SA 3.0, Author: RI Wikimedia Commons

dorstenia_turnerifolia_fisch._c.a.mey.txt · Zuletzt geändert: 2021/07/21 11:47 von andreas