05-05-2025 10:09
Nicolas Suberbielle
Re-bonjour,Cet ascomycète trouvé et étudié par
09-05-2025 16:01
Thomas FlammerI found a black cushon which might eventually be
09-05-2025 19:10
Enrique Rubio
Hi to everybody.This Orbilia (apos up to 0.5 mm),
06-05-2025 13:37
Thomas FlammerMunk, Anders (1953). The System of the Pyrenomycet
08-05-2025 20:50
Andreas JacobGood evening, due to contstant drought I started
07-05-2025 18:29
Francois Guay
I found this small hyaline ascomycete on moist, de
08-05-2025 02:22
Francois Guay
I found this white, hairy ascomycete on the bark o
08-05-2025 18:32
Ethan CrensonHello all, I was looking at leaves of Yucca from
I am struggling with a small pyreno that I collected on bark of Quercus faginea. The pseudothecia grew gregariously and an rather small, around 0,3-0,4 mm. Asci are bitunicate with a fissitunicate dehiscence, 75-85 x 12-13µm. Spores measure 18-22 x 6-7 µm, hyaline and apparently without a gelatinous sheath. The hamathecium is very dense and composed of branched hyphae.The peridium is 30-40 µm thick.
I have been looking into Massaria. The key of the Massarina monograph leads to Massarina corticola, but the asci and spores of this collection are smaller. Probably not a Massarina at all.
Thank you in advance for your help.
Cheers,
Ibai.
this is a species of the genus Didymella. I have similar collections also from bark of Catalpa bignioides.
cheers
björn