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03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

30-10-2025 03:53

Ethan Crenson

Hi all,  I would like an opinion on whether this

09-08-2025 13:13

Maria Plekkenpol Maria Plekkenpol

Hello,Yesterday I found these on burnt soil. Apoth

29-10-2025 19:02

Castillo Joseba Castillo Joseba

De la pasada semana en rama posiblemente de hayaPi

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Hysteropatella
Tomaz Vucko, 14-02-2025 23:15
Tomaz VuckoHy! 
Last one for today.

How would you identify this Hysteropatella I found on detached bark of Salix? H.elliptica? I mostly noticed only greenish colors.
Spore measurements are:
(22.3) 22.9 - 28.3 (32.1) × (7.4) 7.8 - 9.4 (9.8) µm
Q = (2.5) 2.7 - 3.3 (3.4) ; N = 21
Me = 25.4 × 8.5 µm ; Qe = 3
Jan 2025, Slovenia. 

Thanks!

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Hans-Otto Baral, 15-02-2025 09:49
Hans-Otto Baral
Re : Hysteropatella
Difficult to say. I tend to H. elliptica although my description gives smaller spores: *18–24(–25.5) × (5.3–)6–7.5 µm {from 8 collections}, but 25-28 when 5-septate and 8-8.5 µm wide when overmature.
Tomaz Vucko, 16-02-2025 00:31
Tomaz Vucko
Re : Hysteropatella
Thanks for the thoughts! Yes, my collection does not fit the best with others I think. Is on the other hand blue pigment obligatory for H. elliptica?
Hans-Otto Baral, 16-02-2025 10:15
Hans-Otto Baral
Re : Hysteropatella
yes, I remember so. My description says: apically covered by a dark (olivaceous-)blackish-brown to greenish-black, cloddy KOH-inert exudate; upper part immersed in deep blue-grey or blue-green gel {5}, inert to KOH but more distinctly blue-green, sometimes slightly dissolved into medium, pale reddish in PVA, grey-violaceous in acetic acid but again deep blue in KOH {2}
Tomaz Vucko, 16-02-2025 13:06
Tomaz Vucko
Re : Hysteropatella
Aha, okay! I wondered because I quite searched for it and couldn't find it.
Thanks once again for the reply!
BR