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
Lophiostomataceae on Ambrosia
Enrique Rubio,
24-07-2023 18:38
Some time ago Joseba Castillo asked us about a pyrenomycete found on roots of Ambrosia artemisiifolia (Asteraceae). The pseudothecia are more or less spherical, immersed, with an superficial apical papilla often laterally compressed. The asci are bitunicate and the spores hyaline or subhyaline, with several transverse septa, with a larger cell and a conspicuous gelatinous sheath clearly visible in dilute India ink. From all this it looks like a member of the family Lophiostomataceae. Do you have any ideas that might help us.Many thanks in advance
Josep Torres,
24-07-2023 23:55
Re : Lophiostomataceae on Ambrosia
Hola Enrique, no entiendo mucho de estas, pero la morfologÃa esporal, la vaina gelatinosa que envuelve a la espora y la materia interascal que creo apreciar en la cuarta imágen, seguramente voy a decir una tonterÃa, asà que no me hagas mucho caso, pero me recuerdan a Amniculicola.
Un abrazo.
Un abrazo.
Enrique Rubio,
25-07-2023 12:17
Re : Lophiostomataceae on Ambrosia
Thank you very much Josep.
I have never been able to study any Amniculicola species, but it seems to be a genus of freshwater pyrenomycetes characterised by their fusiform, hyaline, two-celled ascospores, constricted at the median septum, surrounded by an irregular hyaline gelatinous sheath. And these characters do not match those of this collection.
I have never been able to study any Amniculicola species, but it seems to be a genus of freshwater pyrenomycetes characterised by their fusiform, hyaline, two-celled ascospores, constricted at the median septum, surrounded by an irregular hyaline gelatinous sheath. And these characters do not match those of this collection.