11-03-2025 13:10
Blasco Rafael
Hola, alguna idea para esta especie ??Recogida sob
26-03-2025 18:29
Juuso ÄikäsI recently found some ascos that I think belong to
23-03-2025 19:56
Bruno Coué
Récolte du 06/03/2025, dans la forêt de la Combe
25-03-2025 12:27
Yanick BOULANGERBonjourRécolté par un ami le 23/03/20025Cela sem
23-03-2025 12:01
Thierry Blondelle
Bonjour à tous,Ce sont de petits coussinets blanc
24-03-2025 14:58
Karl Soler KinnerbäckHi,Dark, erumpent disco on Vaccinium myrtillus, ce
24-03-2025 16:20
Henri KoskinenI found this very small Elaphomyces on a wet almos
23-03-2025 20:27
Thomas FlammerI have no idea where to startsubstrate: deciduous
19-03-2025 17:47
Philippe Larue
Bonjour à tous, chaque année à l'approche du p
Hypoxylon?
Björn Wergen,
19-11-2013 17:54
Hi there,in Austria, my friend has found an interesting collection of a hypoxyloid species, from which I do not know what it is. Perithecia are about 0,6-0,9mm and are embedded in a black stroma, growing in rows on dead deciduous wood surface. Looking at the non-ostiolate perithecia, I first thought about Creosphaeria sassafras, but spores do not fit this species.
In KOH, it has no reaction. Asci Lugol +, spores have a conspicuous germ slit.
Any idea?
All the best,
björn
Jacques Fournier,
19-11-2013 18:15
Re : Hypoxylon?
Hi Bjorn,
not a Hypoxylon because of the lack of coloured granules and perithecia deeply immersed beneath surface.
It is a Lopadostoma, close to L. gastrinum based on the pale entostroma and its situation often superficial on dead wood but ascospores average a bit larger than reported for this species. Is the germ slit on one side or circumferential? The host is also important to know.
Cheers,
Jacques
not a Hypoxylon because of the lack of coloured granules and perithecia deeply immersed beneath surface.
It is a Lopadostoma, close to L. gastrinum based on the pale entostroma and its situation often superficial on dead wood but ascospores average a bit larger than reported for this species. Is the germ slit on one side or circumferential? The host is also important to know.
Cheers,
Jacques
Björn Wergen,
19-11-2013 18:21
Re : Hypoxylon?
Hi Jacques,
yes I had lots of doubts about my determination as Hypoxylon, but I did not find any other genus which it can belong to...
The germ slit is only on one side and the host should be Robinia.
yes I had lots of doubts about my determination as Hypoxylon, but I did not find any other genus which it can belong to...
The germ slit is only on one side and the host should be Robinia.