29-05-2018 19:42
Viktorie Halasu
Hello forum,J.A.Nannfeldt in his 1966 paper ("On O
29-05-2018 19:50
Nicolas VAN VOOREN
Bonsoir.Je suis à la recherche de cet article :Ra
29-05-2018 14:33
François BartholomeeusenDear forum members,In a newly mown, very humid, fl
20-05-2018 12:13
Rubén Martínez-Gil
Hola a todos. Subo unas fotos de una Ciboria que
26-05-2018 21:42
Bernard CLESSE
Bonsoir à toutes et tous,Hier, j'ai trouvé à la
25-05-2018 17:19
Valencia Lopez Francisco JavierHola todos/asAdjunto fotos de unos ascos recolecta
25-05-2018 21:39
Bernard CLESSE
Sur tige pourrie d'angélique sauvage, dans une ca
Nannfeldt and UV - what wavelength?
Viktorie Halasu,
29-05-2018 19:42
Hello forum,J.A.Nannfeldt in his 1966 paper ("On Otidea caligata, O. indivisa and O. platyspora") wrote about UV fluorescence which he had been testing in Otidea with rather promising results, planning to publish them later. However, I didn't find any later paper by him about this matter. Would anyone know, what wavelength of UV he actually used? Harmaja used 254 nm, Parslow et Spooner both 254 and 365 nm, but I didn't find any data about/by Nannfeldt. He wrote his interest in UV fluorescence was inspired by Rolf Santesson who showed him some examples of its use on lichens. So perhaps it's question for a lichenologist..
Thank you in advance.
Viktorie
Viktorie Halasu,
31-05-2018 21:18
Re : Nannfeldt and UV - what wavelength?
After having read a bit about lichens and also some Santesson's papers from that period, I think it might have been anything in the near and middle UV range (200-400 nm). Probably several wavelengths were used to demonstrate different chemical compounds.