Melampsora euphorbiae?

Gestart door paulhoekstra, september 22, 2013, 21:34:30 PM

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paulhoekstra

Deze roest groeide op Tuinwolfsmelk (Euphorbia peplus). Volgens mij zijn de sporen Uredinia? Ze zijn ongeveer 20 micrometer groot en er zijn volgens mij ook parafysen aanwezig. Volgens mij is het dan Melampsora euphorbiae. Klopt dat?

http://waarneming.nl/waarneming/view/79239567
Roest spec. - Urediniomycetes gezien op 2013-09-22 Wageningen - Nude
Foto's:


groeten,
Paul

Julia Kruse

Hello,

are you sure with the host, or could it also be Euphorbia helioscopia?

Greets, Julia

paulhoekstra

Hello,
Yes I am quite sure it is Euphorbia peplus. You can see the 2 ridges on each angle of the fruits. Furthermore, the leave margins were smooth.
Greetings,
Paul
groeten,
Paul

Julia Kruse

Hello,

ok, thanks. I couldn't see it perfectly on the picture. Rustfungi are mostly hostspecific, so i asked you. But you determination is right :)

Greets Julia

paulhoekstra

Yes, I took the picture of the euphorbia some hours later, so it wasn't any more in a perfect shape, but thank you for the confirmation of the rustfungi.
groeten,
Paul