24-03-2024 08:27
Thierry BlondelleHiOn Hedera helix fallen branchEcological habitat:
26-04-2024 10:07
Mathias HassHello, Does anyone know what this is? Found on J
24-04-2024 21:54
éric ROMEROBonjour, J'ai trouvé ce Lasiobolus sur laissées
23-04-2024 15:18
Lothar Krieglsteiner... but likely a basidiomycete. I hope it is o.k.
23-04-2024 13:17
Edouard EvangelistiBonjour à tous, Je viens de récolter ce que je
23-04-2024 21:49
Ethan CrensonHello all, A friend recently found this orange as
22-04-2024 11:52
Zuzana Sochorová (Egertová)Hello,I made a loan of a collection of Microstoma
11-01-2022 16:36
Jason KarakehianHi does anyone have a digital copy of Raitviir A (
22-04-2024 20:38
Miguel Ángel RibesGood afternoon.Does anyone know this anamorph?It g
Collected in Portugal, Algarve, nature reserve Fonte Benemola north of Loule, 3.1.2018.
Substrate is Arundo donax, as the leaf remains were partly still adhering to the thick lying stems. Unfortunately, most of the collection is badly ripe but I think I could get most of the important characters. Unripe spores in the asci mostly were much smaller (maybe 12-15 µm) than the free ones I measured here.
The IKI-reaction of the asci is weak and cannot be seen at all asci. For some time, I was not at all sure to have an inoperculate discomycete - but my pictures clearly show the porus.
I think this should be looked for in the Sclerotiniaceae (?) - but I do not have a good idea about the genus and species.
Who can help?
Best regards from Lothar
I see true croziers on your photo, though a bit difficult to recognize, because also basal protuberances occur. This and the occurrence on Poaceae speaks for Rutstroemia calopus. In my folders this is the unpublished genus Clarireedia which exists only in the web. Actually, this group stands apart from Rutstroemia in phylotrees. It was suggested for the dollarspot disease Sclerotinia homoeocarpa, which clustered with a R. paludosa sequence in CBS (see my homoeocarpa folder).
Zotto
Hello Zotto,
thanks a lot for your expertise. I had thought of R. calopus but got away of it because I found the spores not typical for a Rutstroemia.
Nice to have a name, then :-)
Thanks again and best regards, Lothar