20-05-2020 17:29
Ibai Olariaga IbargurenDear all, I am struggling with a small pyreno
23-02-2025 14:41
FRANCIS FOUCHIERBonjour, je recherche l'article suivant:TORRE M. (
06-02-2025 06:25
Bharati MandapatiHi All, I would love some help with this Lasiobel
17-02-2025 21:29
Yanick BOULANGERBonsoirPour le premier, il s'agit de Calycina hete
07-02-2025 17:48
Vasileios Kaounas
asci 170-200 x 20-22 ?m spores 21.9 [22.9 ; 23.4]
19-02-2025 19:25
Margot en Geert VullingsOn a fallen Fagus branch we found these bumps, som
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