Tiny white fungi on dead ferns

13-04-2018 19:57

Juuso Äikäs

I found plenty of these today growing on dead fern

11-04-2018 09:28

Podospora esporas grandes ??

Alvarado Cordobes Manuel

En excremento de cabraEsporas grandes 42-45*24-26a

11-04-2018 11:44

Unguiculariopsis

Elisabeth Stöckli

Bonjour, Trouvé sur branche morte et décortiqu�

12-04-2018 19:31

Heterosphaeria patella?

hannie wijers

Hello.a friend found on a spot where there are m

14-04-2018 12:00

Phaeosphaeria typharum

Riet van Oosten

Hello,Found op Typha, 13-04-2018, the Netherlands.

13-04-2018 17:15

Sporormiella sp.

Ralf Dahlheuser

Hello everybody,this sporormiella grows on the dun

13-04-2018 09:12

En Hinojo, (Foeniculum vulgar)

Castillo Joseba

Me mandan muestra seca desde Galicia, en hinojo

13-04-2018 00:14

Ophiognomonia leptostyla?

Garcia Susana

Hola,Encontrados varios peritecios inmersos, creci

12-04-2018 05:14

Macrodiplodiopsis desmazieri (?)

Ethan Crenson

In the Bronx, New York City. On Platanus x aceri

02-04-2018 13:07

Hyalorbilia en Juglans

Blasco Rafael

Hola, he recogido una posible Hyalorbilia inflatul

Tiny white fungi on dead ferns

Juuso Äikäs, 13-04-2018 19:57

I found plenty of these today growing on dead fern stems amid melting snows. These are very, very small; I couldn't see any details with a 10x loupe. The photo was taken with the help of a microscope. I'd guess that they are quite young. Some had a little opening in the middle. Does someone have any idea what the family might be? I haven't yet attempted to do any microscopy.

Hans-Otto Baral, 13-04-2018 20:10

Re : Tiny white fungi on dead ferns

Are you sure they are fully hydrated? Did you try to spray water or submerge it in water for some seconds if they get more open?

As you have enough it would be interesting to test the microscopy.

Juuso Äikäs, 13-04-2018 21:31

Re : Tiny white fungi on dead ferns

I immersed it in water for a while and they opened up a little bit but none much more than seen in the first picture. I did a little microscopy but didn't find any asci. The paraphyses are about 1 micrometer wide (4th image). The third image is of the outer hairs.

Hans-Otto Baral, 13-04-2018 22:19

Re : Tiny white fungi on dead ferns

Indeed, the hairs are glassy and I assume a species of Urceolella. When you add 5% KOH the glassiness of the hairs and their entire outline must disappear.

Perhaps you succed in keeping them for some days in a moist box.

Juuso Äikäs, 13-04-2018 22:30

Re : Tiny white fungi on dead ferns

Thank you for the replies. I'll try to do that and post some new info later if I succeed.

Juuso Äikäs, 15-04-2018 15:28

Re : Tiny white fungi on dead ferns

I managed to do the KOH test. I have 3% KOH and I heated it with a lighter for a while and looked at the hairs. They looked the same as in water.
Then I tried heating it a bit longer so that it bubbled for a few seconds. This time the glassiness had clearly gone and at 400X the hairs were almost invisible. Hopefully the fruitbodies start producing spores at some stage.

Hans-Otto Baral, 15-04-2018 18:23

Re : Tiny white fungi on dead ferns

Great, exactly this is the right method, if the dissolution does not work. Species of Hyalopeziza do not loose glassiness even when boiling in KOH.

Accès membres

Forum AscoFrance