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23-04-2026 06:46

Fungus sp
François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Peziza
Margot en Geert Vullings

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

22-04-2026 20:17

Pseudaegerita spec.
Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

22-04-2026 20:54

Pyrenopeziza on monocot.
Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

22-04-2026 19:12

Poilu, violet avec KOH
Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Hymenoscyphus sp
Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

22-04-2026 01:06

Neonectria ou thelonectria ?
Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

21-04-2026 13:36

Wentiomyces-like on Salix
Gernot Friebes

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

21-04-2026 13:19

Lophodermium on Typha
Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

21-04-2026 13:05

Hyphomycete on Typha
Gernot Friebes

Hi,this hyphomycete feels familiar but I was not a

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Snowmelt Orbilia from California
Alan Rockefeller, 21-04-2021 02:44
Alan RockefellerWhich Orbilia did I find at Echo Lake, Tahoe National Forest, California? It was on the inside of a piece of conifer bark - either Abies magnifica or Pinus contorta. Right at the snowmelt. Dried to an amber color. Small, less than 1 mm diameter.

Micrographs in Melzer's. All parts inamyloid, spores measuring ( 9.8 ) 10.1 – 11.5 (12) × (2.4) 2.7 – 3.1 (3.4) µm. Q = (3.3) 3.4 – 4.2 (4.5).
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  • message #68552
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Hans-Otto Baral, 21-04-2021 10:56
Hans-Otto Baral
Re : Snowmelt Orbilia from California
Hi Alan

I can only recommend you to read the methods in the monograph. When you mount in MLZ then you will be unable to decide if this is an Orbiliomycete or a Helotiales.

Is the sample still fresh?

The asci could be inamyloid or hemiamyloid. If you don't have Lugol, take KOH and after wahsing add MLZ, only then you can be sure about inamyloidity.

Zotto