23-02-2024 16:26
Margot en Geert VullingsWe found these discs on the inside of loose bark o
22-02-2024 23:13
B Shelbourne
Discomycete with Stilbella-like anamorph, seems to
22-02-2024 20:54
Vasileios Kaounas
Found on rotten fruit of Pyrus amygdaliformis, 0,5
22-02-2024 11:05
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous me confirm
20-02-2024 15:21
Sylvie BIANCARDINIBonjour,Trouvé cet Ascobolus sur une laissée de
21-02-2024 16:22
Laurent Bonneau
petites apothécies blanchâtre Spores verruqueus
20-02-2024 22:58
ruiz JoseHola en resto de herbáceas sin determinar, ¿de t
17-02-2024 11:59
Francisco SÁNCHEZ
Os presento esta colección sobre ramas muertas de
Karstenia Idaei or K. rhopaloides?
Margot en Geert Vullings,
23-02-2024 16:26
We think a Karstenia, could this be K. Idaei or K. rhopaloides?
Spores measured in water 37.6-58.38 x 2.9-3.8µ
Asci measured in water 71x12µ
Paraphyses thin cylindrical.
We tried pre-treating with KOH and staining with Lugol. The Ascus top is I+ ? Should be neg.
For Karstenia rhopaloides the spores are to thin.
We think we see periphysoids?
Thanks in advance,
Margot&Geert
Hans-Otto Baral,
23-02-2024 17:36
Re : Karstenia Idaei or K. rhopaloides?
No, but perhaps K. idaei?
Margot en Geert Vullings,
23-02-2024 18:06
Re : Karstenia Idaei or K. rhopaloides?
Hans-Otto, you mean no for the periphysoids?
Could it be K. idaei with ascus I+?
Hans-Otto Baral,
23-02-2024 20:46
Re : Karstenia Idaei or K. rhopaloides?
I did not read your heading when I suggested K. idaei.
The periphysoids are pretty o.k. for Karstenia, but you are right, K. idaei I know without amyloid ring. In your specimen it is an exceptionally clearly amyloid ring.
I have not the time to check all my files so my answers are often spontaneous, I am sorry.
Margot en Geert Vullings,
24-02-2024 19:09
Re : Karstenia Idaei or K. rhopaloides?
Thank you very much and no sorry needed, we are always happy with your help.
In your paper of K. idaei on photo 7-II-2009-2 and 3 we also see an Lugol "swach" + reaction and on photo 13-VII-2008-2 also Lugol + reaction.
Kind regards, Margot&Geert
Hans-Otto Baral,
24-02-2024 20:25
Re : Karstenia Idaei or K. rhopaloides?
Actually the 2008 find is strongly blue in the apical ring. It must be Enrique's images but I lost the info from where I got them in mid July 2008.
2009 is Gernot's, and I am not even sure if it has a ring.
Everything is possible: different species or variation within a species.
Zotto
Margot en Geert Vullings,
25-02-2024 18:18
Re : Karstenia Idaei or K. rhopaloides?
Thank you very much Zotto.