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21-04-2021 02:44

Alan Rockefeller Alan Rockefeller

Which Orbilia did I find at Echo Lake, Tahoe Natio

17-04-2021 15:01

Khomenko Igor Khomenko Igor

Hi, I'm having trouble identifying this hairy disc

20-04-2021 18:50

Ethan Crenson

Hello all, Earlier this week I found this pyrenom

19-04-2021 20:00

Andgelo Mombert Andgelo Mombert

Bonsoir à tous, Un joli Orbilia récolté sur de

19-04-2021 21:11

Juuso Äikäs

Yesterday I found a large group of small Mollisia(

19-04-2021 18:54

Arend van Peer

Dear All, I have been forwarded to this forum by

19-04-2021 21:19

Herrera Emerson Herrera Emerson

Buenos días, les comento que ando buscando estos

17-04-2021 19:34

Juuso Äikäs

This Thursday I found some tiny discos growing on

19-04-2021 10:27

Ismael Wind

This pestalotiopsis found cryptomeria japonica. Is

19-04-2021 10:25

Karl Soler Kinnerbäck

Hi!Could this be a species of Cryptadelphia or Tri

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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
  • 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