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22-04-2026 01:06

Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

21-04-2026 22:14

Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

21-04-2026 21:00

Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

21-04-2026 13:36

Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

21-04-2026 13:05

Gernot Friebes

Hi,this hyphomycete feels familiar but I was not a

20-04-2026 22:00

Malcolm  Greaves Malcolm Greaves

These pale yellow, hairy ascos were growing on cul

19-04-2026 21:23

Steve Clements

Bonjour, I found this anamorphic fungus on old pl

19-04-2026 20:46

Steve Clements

1 mm diameter approx spherical conidiophores on pl

12-04-2026 17:56

Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

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Hemisphaeriaceae on Rosa
Enrique Rubio, 12-06-2018 13:39
Enrique RubioHi again
I'd like to know your opinion on this fungus with superficial, scattered, brownish black, hemisphaeric thyriothecia, 125-150 microns in diam. with a surface composed of intricately interlocked dark brown cells. growing on the periderm of Rosa twigs at 1000 m of altitude.
The hyaline ascospores are bicellular, dimorphic and easily fragmenting. Asci bitunicate.
I think it may belong to the genus Microthyriella, but I don't know of any species that fit my collection well.
What do you think?
Thanks again
Enrique
  • message #53783
  • message #53783