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26-11-2025 18:13

Jason Karakehian Jason Karakehian

The entire run of Mycotaxon is now available throu

21-11-2025 15:22

Vasileios Kaounas Vasileios Kaounas

Found in moss, forest with Pinus halepensis. Dime

25-11-2025 14:24

Thomas Læssøe

https://svampe.databasen.org/observations/10490522

24-11-2025 18:17

ruiz Jose

Hola en madera, quizás de alnus. Esporas(12.1) 12

25-11-2025 11:03

Mick Peerdeman

Hi all,One of my earliest microscopy attempts, so

29-06-2016 18:06

Elisabeth Stöckli

Bonjour,Trouvé sur branches mortes cortiquées de

24-11-2025 15:23

Arnold Büschlen

Hallo, auf einer offenen Kiesfläche am Rande ein

18-11-2025 18:26

David Malloch David Malloch

I am trying to locate the article, Müller, E. 195

23-11-2025 11:16

Bohan Jia

Hi,  I found small discs growing on dead stem of

21-11-2025 10:56

Christopher Engelhardt Christopher Engelhardt

Very small (~0,5 mm) white ascos, found yesterday

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Olla transiens
Thomas Flammer, 01-03-2025 11:31
substrate: Fagus
diameter 500 µm
Spore mass: 5.5 - 7.6 x 2.3 - 2.8 µm - Q: 2.16 - 3.04 (Ø LxB: 6.7 x 2.5 ØQ:2.7 N: 8)
IKI+
The hair bundles are darker, fusiform and some with kind of resinous incrustations. The hairs have to septations
  • message #81749
  • message #81749
Hans-Otto Baral, 01-03-2025 12:00
Hans-Otto Baral
Re : Hyaloscypha?
I imagine this is Olla transiens. The ascus base should be without croziers.
Thomas Flammer, 01-03-2025 12:06
Olla transiens
yes :-) fits perfectly!
Kosonen Timo, 01-03-2025 12:07
Kosonen Timo
Re : Hyaloscypha?
That would be Olla transiens. The longer the hair the shorter the "glassy" part at the apex. Shorter/developing hairs have more glassiness. It's also dextrinoid. Sometimes the glassiness is barely visible in H2O mount, then MLZ/IKI helps. The spore shape looks like a foot print. There are two somewhat different sequences in Genbank. Both are Olla, but maybe not the same species. I've been trying to figure it out, but I havent got very clever yet. There's some older discussion on this matter, (this Forum), try searching for Olla.

cheers
Timo
Thomas Flammer, 01-03-2025 12:19
Re : Olla transiens
tx for the info.