14-04-2026 05:32
Ethan CrensonHi all, A few weeks back a friend pointed out som
12-04-2026 17:56
Hardware Tony
Found on dead stems in February earlier this year
12-04-2026 15:52
Gernot FriebesHi,I'm looking for help with this anamorph collect
12-04-2026 12:22
William Slosse
In a dune grassland in Oostduinkerke (Belgium), on
11-04-2026 15:45
Zuzana Sochorová (Egertová)
Please, could anyone send me this paper?Moyne G.,
11-04-2026 13:34
Artem PtukhaHello, I am seeking assistance with the identific
11-04-2026 10:19
Michel Hairaud
Chers amis d'Ascofrance , voici une très bonne no
11-04-2026 10:10
Michel Hairaud
Dear Ascofrance members, here is some very good ne
10-04-2026 23:22
Gernot FriebesHi,ascospores are 1- to 3-septate, approximately
Karstenia?
Per Vetlesen,
10-09-2016 19:28
It was found on bark of Ulmus glabra in Stange, Norway. I think it is Karstenia, but I can't find any that fits 100%. It seems to be in between K macer and K rhopaloides with either too wide or too narrow spores, but I think it is closer K rhopaloides?
Spores: (6) 7 – 8 (11) septate; (34.2) 40.7 - 49.8 (56.9) × (3.8) 4 - 5.2 (5.3) µm; Q = (7.7) 8.6 - 11.7 (12.4) ; N = 24; Me = 45.6 × 4.7 µm ; Qe = 9.9
The IKI color reaction is stronger than the pic indicate.
Thanks in advance for help!
Regards
Per
Hans-Otto Baral,
11-09-2016 11:43
Re : Karstenia?
This is really difficult. It resembles also the description of K. lonicerae in Sherwood 1977: 55 but your spores are longer. So K. rhopaloides seems to be the best choice.
Per Vetlesen,
11-09-2016 13:12
Re : Karstenia?
Thank you very much for your opinion. Yes, Karstenia is very difficult; I also have 2 more collections, found on Juniperus communis in 2013 and 2015, I'm struggling with. I'll have a new look at them when I get time and maybe ask for help here on AscoFrance.