27-02-2026 11:21
Yannick Mourgues
Hi to all. Here is a specie that can may be relat
18-03-2026 13:09
Khomenko Igor
I recently examined Celtis occidentalis branches
18-03-2026 18:42
Gonzalez Garcia MartaI have collected some lyre-shaped apothecia on the
18-03-2026 17:22
Katarina PastircakovaHi there,I'm looking for the following literature:
27-11-2025 15:41
Thomas LæssøeSpores brownish, typically 4-celled; 26.8 x 2.4;
18-03-2026 11:52
Thomas Læssøehttps://svampe.databasen.org/observations/10493688
11-03-2026 17:36
Michel Hairaud
Bonjour, Je cherche des indices pour cette réc
17-03-2026 10:40
Martine Vandeplanque
Bonjour à tous.Chaque année en mars ou avril, il
17-03-2026 19:41
Bernard CLESSE
Bonsoir à toutes et tous,Pourriez-vous m'aider à
12-03-2026 19:44
Enrique Rubio
Hi to everybody.Can you give me any suggestions ab
Thyridaria sp.
Andgelo Mombert,
15-09-2020 17:27
Bonjour,
Sur branche morte décortiquée de Berberis vulgaris en montagne (Valais, Suisse).
Ascospores : 19,5-25 x 6-9 µm, en moyenne 22 x 7 µm, brunes, à 3(4) cloisons, lisses.
Asques : cylindriques, bituniqués, contenant huit ascospores unisériées ou bisériées.
Pourrait-il s'agir de Thyridaria triseptata ?
Merci d'avance pour votre aide !
Andgelo
Gernot Friebes,
11-03-2026 13:38
Re : Thyridaria sp.
Dear Andgelo,
I likely found the same species, also on Berberis vulgaris. Ascospores: approx. 21.2-24.3 x 6.5-8.6 µm, apparently always 3-septate.
I would put this in the vicinity of Lophiostoma quadrinucleatum. The ascospore size of our collections falls between L. quadrinucleatum and L. caespitosum. Interestingly, Holm & Holm mention collections from Berberis deviating from L. quadrinucleatum, but I have not seen the additional septa that they describe, and the ascospore length they give is still on the larger side.
So, my best guess would be that this is a distinct (undescribed?) species from the L. quadrinucleatum complex.
Best wishes,
Gernot
I likely found the same species, also on Berberis vulgaris. Ascospores: approx. 21.2-24.3 x 6.5-8.6 µm, apparently always 3-septate.
I would put this in the vicinity of Lophiostoma quadrinucleatum. The ascospore size of our collections falls between L. quadrinucleatum and L. caespitosum. Interestingly, Holm & Holm mention collections from Berberis deviating from L. quadrinucleatum, but I have not seen the additional septa that they describe, and the ascospore length they give is still on the larger side.
So, my best guess would be that this is a distinct (undescribed?) species from the L. quadrinucleatum complex.
Best wishes,
Gernot
