13-02-2026 03:30
Tomaz Vucko
Hello! I found these immersed perithecia on a stic
12-02-2026 21:34
patrice CallardBonjour, la face inférieure des feuilles ce certa
11-02-2026 22:15
William Slosse
Today, February 11, 2026, we found the following R
12-02-2026 14:55
Thomas Læssøehttps://svampe.databasen.org/observations/10581810
11-02-2026 19:28
Lothar Krieglsteiner
on small deciduous twig on the ground in forest wi
25-04-2025 17:24
Stefan BlaserHi everybody, This collection was collected by JÃ
10-02-2026 17:42
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous me donner
10-02-2026 18:54
Erik Van DijkDoes anyone has an idea what fungus species this m
09-02-2026 20:10
Lothar Krieglsteiner
The first 6 tables show surely one species with 2
Unknown near Pseudohalonectria
Tomaz Vucko,
13-02-2026 03:30
Hello! I found these immersed perithecia on a stick together with Pseudohalonectria lutea in a boggy area. Very first idea was Annulusmagnus before closer inspection but it is something else. Interior seems to be giving a slight pinkish/orangish hue just like P.lutea. Would someone have an idea about this species? Ascospores smooth. Asci: J-, CR+Ascospore measurements are:
(41.8) 46.2 - 52.9 (53.8) × (11.3) 12.3 - 14.9 (15.7) µm
Q = (3) 3.1 - 4.2 (4.4) ; N = 32
Me = 49.1 × 13.8 µm ; Qe = 3.6
February 2026, alluvial forest, Slovenia.
Alain GARDIENNET,
13-02-2026 07:25
Re : Unknown near Pseudohalonectria
Hi Tomaz,
Welcome to the world of freshwater fungi, with several undescribed species. I don't know that one.
Your analysis is already well advanced; you have noticed that the spores of this fungus are even larger than those of Annulusmagnus triseptatus. You need to look closely at other characteristics, such as the shape and size of the apical apparatus (too small for the Annulusmagnus genus), which is generally clearly visible in Congo red, or the thickness and composition of the peridium. One of the characteristics of your fungus is that it is submerged and resembles Pseudohalonectria. You managed to see that there were two fungi, which is remarkable.
You did a great job in any case, well done!
I don't even have a genus name to suggest, but it's been a few years since I've looked closely at all the publications about freshwater fungi. Let's hope another opinion.
Alain
Welcome to the world of freshwater fungi, with several undescribed species. I don't know that one.
Your analysis is already well advanced; you have noticed that the spores of this fungus are even larger than those of Annulusmagnus triseptatus. You need to look closely at other characteristics, such as the shape and size of the apical apparatus (too small for the Annulusmagnus genus), which is generally clearly visible in Congo red, or the thickness and composition of the peridium. One of the characteristics of your fungus is that it is submerged and resembles Pseudohalonectria. You managed to see that there were two fungi, which is remarkable.
You did a great job in any case, well done!
I don't even have a genus name to suggest, but it's been a few years since I've looked closely at all the publications about freshwater fungi. Let's hope another opinion.
Alain