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06-11-2025 16:50

Hymenoscyphus sp?
Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

06-11-2025 16:51

Hymenoscyphus sp?
Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

04-11-2025 14:53

Leptosphaeria?
Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

05-11-2025 11:33

Cladosporium ?
Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Hymenoscyphus on blueberry.
Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Protounguicularia transiens?
Edvin Johannesen Edvin Johannesen

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

03-11-2025 21:34

Tatraea sp. ? on Populus tremula
Edvin Johannesen Edvin Johannesen

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

03-11-2025 19:41

Ascomycetes
David Chapados David Chapados

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

28-10-2025 15:37

Bright orange stalked asco
Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hymenoscyphus phiala
Hans-Otto Baral Hans-Otto Baral

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

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Hyaloscypha aureliella / britannica
Patrice TANCHAUD, 20-02-2019 08:22
Sur épicéa. Spores 7,5-10 x 2,5-3 µm.

Merci d'avance pour vos avis.

Patrice
Kosonen Timo, 20-02-2019 08:32
Kosonen Timo
Re : Hyaloscypha aureliella / britannica
Hello,

Let's start with the ecology: Softwood/hardwood - can you confirm? Ascus base needs to be checked also. And then a MLZ mount of the excipular cells. ...could be, or could be something totally else :-)

Timo
Patrice TANCHAUD, 20-02-2019 08:56
Re : Hyaloscypha aureliella / britannica
Epicéa = Picea Abies.

I will put new pictures tonight.
Kosonen Timo, 20-02-2019 09:35
Kosonen Timo
Re : Hyaloscypha aureliella / britannica
Ah, of course, sloppy me.

H. britannica is supposed to have atleast some septate spores (10-20 %). Also there should be some spores clearly over 10 um in length if it was britannica. And take a careful look at the hairs: How resistent hair resin is in MLZ, does it dissolve immediately or is it still there. They both have crozier, check that also. It's not always easy, you could try congo red just to check the ascus base.

T
Patrice TANCHAUD, 22-02-2019 09:14
Re : Hyaloscypha aureliella / britannica
I do not see septate spores. No spore over 10 µm. Hair resin seems to dissolve easily, but not easy to calculate. Croziers present.

Thanks.
  • message #56446
Kosonen Timo, 22-02-2019 10:00
Kosonen Timo
Re : Hyaloscypha aureliella / britannica
okay!

H. aureliella & conifer. Just as in maybe 98% of the cases.

Never seen H. britannica here in Scandinavia. Stip Helleman has collected H. britannica and he considered it as very rear and not a boreal species. But it is definately a good species (sequences & morphology). Keep your eyes open :-).

Timo
Patrice TANCHAUD, 22-02-2019 10:25
Re : Hyaloscypha aureliella / britannica
Thanks for all.

Patrice