14-07-2025 11:20
Michel Hairaud
Bonjour, Voici une espèce de (?) Hyaloscyphace
16-01-2023 21:31
Riet van Oosten
Hello, Nearby the find of Calycina claroflava on
14-07-2025 17:55
Yanick BOULANGERBonjourAutre dossier laissé en suspendJe viens de
14-07-2025 11:17
Yanick BOULANGERBonjourJ'ai un dossier Jackrogersella qui est rest
14-07-2025 15:52
Gernot FriebesHi,I wanted to share this collection on Rubus idae
14-07-2025 13:37
Gernot FriebesHi,do you think this collection could be R. ulmari
14-07-2025 11:19
Michel Hairaud
Bonjour, Voici une espèce de (?) Hyaloscyphace
12-07-2025 16:45
Thierry Blondelle
Bonjour à tous,J'avais d'abord pensé à des stro
05-07-2025 12:38
Åge OterhalsI found this pyrenomycetous fungi in pine forest o
unknown discomycete on Alnus incana
Björn Wergen,
11-11-2023 00:15
Dear friends,In Balderschwang, near the border of Austria, we have found a small discomycete on dead wood of Alnus incana. I have checked several possibilities but I cannot get it closer as to the genus Strossmayeria.
However, the most striking feature here are the budding, multiseptate spores.
46.8 - 48.45 (48.5) × 3 - 3.35 (3.4) µm; Q = 14.5 - 15.5 ; Me = 47.6 × 3.2 µm ; Qe = 15
asci 110 - 130 x 9 - 10 µm, H+, IKI+bb, 8sp
paraphyses 2.0 - 2.2 µm broad
fb 365 - 450 µm diam., in section appearing somewhat gelatinous.
kreiselförmig bis kurzstielig
-------------------------------------------------
Any ideas welcome. Thanks.
regards
björn
Hans-Otto Baral,
11-11-2023 09:52
Re : unknown discomycete on Alnus incana
Hi Björn
there is a Strossmayeria alnicola in Iturriaga & Korf 1990, which has similar spores but Iturriaga 1984 states that all Strossmayeria spp. have inamyloid asci (with or without KOH) and also in 1990 I cannot find a hint on a species with an amyloid ring.
Apparently all species react blue in the marginal ectal excipulum and also the spores react bluish, at least when overmature. Perhaps MLZ is better to obtain this blue reaction.
There are no Pseudospiropes conidia which apparently all P. spp. have?
Zotto
Björn Wergen,
21-11-2023 14:55
Re : unknown discomycete on Alnus incana
Hi Zotto,
I have checked again, but I could not manage to find any reaction of anything to MLZ (except apical plugs).
I have not seen any Pseudospiropes conidia, but the species is accompanied by an anamorphous stage which looks somewhat similar, disc like and about 1mm diam. Photos attached.
Conidia of that anamorph:
4.8 - 5.1 (5.5) × (1.2) 1.23 - 1.46 (1.5) µm; Q = (3.3) 3.34 - 4.1 (4.2) ; N = 10. Me = 5 × 1.4 µm ; Qe = 3.7.
regards
björn
I have checked again, but I could not manage to find any reaction of anything to MLZ (except apical plugs).
I have not seen any Pseudospiropes conidia, but the species is accompanied by an anamorphous stage which looks somewhat similar, disc like and about 1mm diam. Photos attached.
Conidia of that anamorph:
4.8 - 5.1 (5.5) × (1.2) 1.23 - 1.46 (1.5) µm; Q = (3.3) 3.34 - 4.1 (4.2) ; N = 10. Me = 5 × 1.4 µm ; Qe = 3.7.
regards
björn
Hans-Otto Baral,
21-11-2023 17:15
Re : unknown discomycete on Alnus incana
Hmm, I remember such an anamorph, but I think it is not related to the perfect state. Do you have a possibility to send a portion for sequencing? DGfM? It would make me curious with what this could be related.
Zotto
Björn Wergen,
21-11-2023 23:14
Re : unknown discomycete on Alnus incana
Not sure whom to send it. I could put it to the herbarium. Until anyone wants to study it.
regards
björn
regards
björn
Hans-Otto Baral,
22-11-2023 10:05
Re : unknown discomycete on Alnus incana
o.k. No problem.
Björn Wergen,
09-01-2024 15:38
Re : unknown discomycete on Alnus incana
Hi Zotto,
I am quite sure it is the same as in Parachnopeziza, alaunae cf. 24-58 x 3-3.5 3-9-sept. P. gutt. I think that was found bei Ueli Graf?
regards
I am quite sure it is the same as in Parachnopeziza, alaunae cf. 24-58 x 3-3.5 3-9-sept. P. gutt. I think that was found bei Ueli Graf?
regards
Hans-Otto Baral,
09-01-2024 17:06
Re : unknown discomycete on Alnus incana
Very good idea! No, Ueli is UG, this one is by Urs Roffler (UR).
If you tell me the exact date then I can name your pics in my folder.
Björn Wergen,
09-01-2024 22:42
Re : unknown discomycete on Alnus incana
Here are the collection data:
On dead attached twig (partly without bark about 10cm diam.) of Alnus incana, Balderschwang, 06.11.23., leg. B. Wergen/K. Gilbert.
On dead attached twig (partly without bark about 10cm diam.) of Alnus incana, Balderschwang, 06.11.23., leg. B. Wergen/K. Gilbert.
Hans-Otto Baral,
12-01-2024 17:39
Re : unknown discomycete on Alnus incana
Gut, danke!