10-06-2026 23:08
éric ROMERO
Bonjour tous, Je vous propose un Mollisia trouvé
10-06-2026 12:54
Steve ClementsBonjour encore, Pouvez-vous m'aider, s'il vous pl
09-06-2026 18:32
Camille MertensSur morceau de roseau immergé 0,5 - 0,7 mm de dia
10-06-2026 21:16
François Freléchoux
Bonsoir,Le dernier du jour, en attendant votre avi
10-06-2026 21:07
François Freléchoux
Toutes les tiges de gentianes jaunes de l'an passÃ
10-06-2026 13:41
François Freléchoux
Bonjour à nouveau, Voici une trouvaille d'hier.
10-06-2026 11:53
Steve ClementsBonjour, This disco is abundant on dead stems of
10-06-2026 10:45
François Freléchoux
Bonjour à nouveau, Encore une détermination qui
08-06-2026 10:16
Spooren Marco
I don`t have a clou about this fungus,it is not in
10-06-2026 09:24
François Freléchoux
Bonjour, J'imagine que cette détermination ne do
On Epilobium-not asco
Marja Pennanen,
31-01-2023 17:07
Hello folks,
I have found these brown ones (~1cmx0,5cm) on Epilobium for years. Now I finally looked, what their microscophy looks like. Well, it looked brown and big, about 45-70+ x10-14.
Hopefully someone here knows, what these are, so I do not have to start trying to find a key for something like this.
Winter greetings: Marja
Björn Sothmann,
31-01-2023 17:10
Re : On Epilobium-not asco
Hi Maria,
this is a rust fungus with two-celled teliospores. Do you know which Epilobium species this is precisely? Can you check if the spore walls are smooth or finely warted (hardly visible)
Björn
Marja Pennanen,
31-01-2023 17:46
Re : On Epilobium-not asco
Hi Björn.
it seems to be nowadays Chamaenerion angustifolium, but was Epilobium, when I learned the latin name.
I have found these in spring
Marja
After writing the text above, I went and looked. There seems to be warts on the surface.
Is it Puccinia gigantea?
Björn Sothmann,
31-01-2023 18:16
Re : On Epilobium-not asco
Hi Marja,
I have never found P. gigantea myself, but comparing to the descriptions in Klenke&Scholler and Gäumann, I have little doubt that your find is indeed this species.
Björn
Marja Pennanen,
31-01-2023 18:26
Re : On Epilobium-not asco
Hi Björn,
what is the title of the source you mentioned and how may someone, who is a bit interested also in rust fungies, get it in her hands or computer?
Curiously: Marja
Björn Sothmann,
31-01-2023 18:47
Re : On Epilobium-not asco
Hi Marja,
You can find the book by Gäumann online at the ETHZ website: https://www.e-periodica.ch/digbib/view?pid=cry-001%3A1959%3A12#4 Unfortunately, it is avaialble in German only but contains a lot of very nice drawings of spores. The book by Klenke and Scholler is "Pflanzenparasitische Kleinpilze" and German as well. It consists of keys only that are arranged according to host plant genera.
Best,
Björn
Marja Pennanen,
01-02-2023 09:36
Re : On Epilobium-not asco
Thank you Björn, vielen danke!
Wau, that opus is huge!
I have a feeling, that Puccinia gigantea is more common in northern Finland than here in eastern Finland. At least last spring I saw them in Lapland at least as many, than I have found here altogether
Marja