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04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

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

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Hymenoscyphus ?
Vasileios Kaounas, 10-03-2018 11:50
Vasileios KaounasFound in flower of Pinus halepensis
Very small 0,5-1 mm.
Asci (46.6) 51.6 - 65.3 (75.2) × (4.8) 5.2 - 6.6 (6.9) µm

Spores (6.1) 6.6 - 7.9 (8.8) × (2.6) 2.8 - 3.9 (4.1) µm
Q = (1.8) 1.9 - 2.5 (3.1) ; N = 20
Me = 7.3 × 3.3 µm ; Qe = 2.2
Hans-Otto Baral, 10-03-2018 12:48
Hans-Otto Baral
Re : Hymenoscyphus ?
This would require a lot of more details. 
I wonder how you arrive at so exact data when the photos are quite unsharp.

Is the fungus still fresh? Important are the contents of the living paraphyses, the iodiune reaction of the asci, the structure of the excipulum at fkanks and margin (in a section).

I dobt Hymenoscyphus but am not sure.
Zotto
Vasileios Kaounas, 12-03-2018 20:37
Vasileios Kaounas
Re : Hymenoscyphus ?
Thanks for your answer Mr Baral !!!
Unfortunately the sample was too small and difficult to cut.
I just wanted to know if this species belong  in this genus.
Hans-Otto Baral, 12-03-2018 22:01
Hans-Otto Baral
Re : Hymenoscyphus ?
Thjis is a matter of experience. 0.5-1 mm is a rather large fungus for a good deal ofaxa. amateurs who use to study smaller taxa. Of course a bino is necessary, and there you can do quite easily sections with a razor blade. But the main thing is to study living asci and spores with oil immersion and to have a good adaptation of the camera.