09-06-2026 18:32
Camille MertensSur morceau de roseau immergé 0,5 - 0,7 mm de dia
08-06-2026 17:00
François BartholomeeusenGood day everyone, On June 5 2026, I collected de
08-06-2026 10:16
Spooren Marco
I don`t have a clou about this fungus,it is not in
07-06-2026 15:10
William Slosse
Hello everyone,On 05-06-26, I found following asco
05-06-2026 11:02
Thomas Læssøehttps://svampe.databasen.org/observations/10596691
07-06-2026 12:09
François Freléchoux
Bonjour, Voici une brève description de ce qui m
07-06-2026 12:43
Steve ClementsBojour. This was a strange find on a stick on my
12-07-2015 00:05
Nedim Jukic
This one from the same locality as the previous on
06-06-2026 17:44
Steve ClementsBonjour, This disco was on planed wood 3 x 1.5 cm
Cytospora or ...?
Sergey Markov,
25-04-2021 21:48
I found today a small pyreno on Betula pendula, on a fallen branch. This fungus may be a host for yellow-colored Tremella sp. Perithecia are in bundles of 3...8 pieces in each ascostromata, irregularily arranged. Ascostromata are immersed in the bark.
Ascospores hyaline, allantoid, non-septate, single-celled, measurement on the photo.
Asci IKI-, hyaline, almost invisible in MLZ and Congo/SDS.
I myself have not been able to identify the species. I only suggested the genus as Cytospora(Leucostoma?). Please help.
Stoykov Dimitar,
26-04-2021 07:02
Re : Cytospora or ...?
Hallo Sergey,
It looks like Leucostoma niveum. Asci mosty 8 -spored, rarely 4-spored; spores 12-17 × 2-4 mictometers.
Dimitar
It looks like Leucostoma niveum. Asci mosty 8 -spored, rarely 4-spored; spores 12-17 × 2-4 mictometers.
Dimitar
Sergey Markov,
26-04-2021 10:52
Re : Cytospora or ...?
Thank Yoy very much, Dimitar. It fits not bad and was reported from Betula sp. Also it was reported in conjunction with Peniophora sp. and Peniophora is a host for Tremella mesenterica.