12-01-2026 05:24
Danny Newman
Cyathicula coronata on Urtica dioicaCataloochee Di
11-01-2026 20:35
Hello.A very tiny pyrenomycete sprouting sparsely
15-12-2025 11:49
Danny Newman
ITS sequences from the following two collections B
09-01-2026 17:41
Arnold BüschlenHallo, F. dilatata wird von vielen Bryoparasiten
10-01-2026 20:00
Tom SchrierHi all,We found picnidia on Protoparmeliopsis mur
07-01-2026 22:22
Danny Newman
Tatraea sp. on indet. hardwood The Swag, Great Sm
10-01-2026 01:18
Danny Newman
cf. Neovaginatispora fuckelii on indet. shrub Pre
07-01-2026 10:24
Danny Newman
Pezicula sp. on indet. hardwood Appalachian Highl
09-01-2026 10:08
Blasco Rafael
Hola, en el mismo habitat que la anteriorRetamaDia
08-01-2026 21:22
Blasco Rafael
Hola, He recogido esta muestra de Orbilia sobre Re
Found growing in Pennsylvana, United States. Growing on the soil in a mulched path with soil and wood chips under conifers but on the soil. At first I was thinking it resemble Aleuria aurantia but when when i find that species it grows on clay in disturbed areas and it is much larger. A friend put it under her microscope and measured the spores at 10 X 8 and very warted. J- and they did not react with melzer's reagent. There we only had Nordic Macromycetes and using the key it keyed out to Octospora sp. but there was no moss. So looking at it with another friend under a different microscope we tried additional stains. I measured the spores at 13.5 X 9. looking at several of them it appeared that they had spines on the spores that went into a slime layer that surrounded the spore. It also appeared that inside some of the spores there was a figure 8 or prehaps 2 oil drops or septa. Not certain. We also observed that some of the spores had protrusions on each end. There the book he had was the Fungi of Switzerland and there was a Aleuria that had similar looking spores but it looked different and also differed by having a stalk. Could not come up with any better ideas.
I will post spore photos shortly.
John
I think it's Aleuria aurantia
Il est difficile, à partir de vos photos, de pouvoir apprécier correctement l'ornementation sporale. Si l'ornementation est comme vous l'indiquez, formée d'épines, il ne s'agit alors pas de Aleuria aurantia.
Les Aleuria, contrairement aux Octospora, possèdent des poils hyphoïdes, inférieurs à 200 µm de long, sur l'excipulum. Les apothécies de A. aurantia peuvent être inférieures à 10 mm de diamètre.
La planche 99 de B&K illustre Sowerbyella reynana (Bull. :Fr.) J. Moravec, non une espèce du genre Aleuria.
En annexe une planche montrant les ascospores de A. aurantia.
Amicalement
René







