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09-06-2026 18:32

Camille Mertens

Sur morceau de roseau immergé 0,5 - 0,7 mm de dia

08-06-2026 17:00

François Bartholomeeusen

Good day everyone, On June 5 2026, I collected de

08-06-2026 10:16

Spooren Marco Spooren Marco

I don`t have a clou about this fungus,it is not in

07-06-2026 18:18

Mario Schulz

Hello everyone, i found on 31.5 the following Mol

07-06-2026 15:10

William Slosse William Slosse

Hello everyone,On 05-06-26, I found following asco

05-06-2026 11:02

Thomas Læssøe

https://svampe.databasen.org/observations/10596691

07-06-2026 12:09

François Freléchoux François Freléchoux

Bonjour, Voici une brève description de ce qui m

07-06-2026 12:43

Steve Clements

Bojour. This was a strange find on a stick on my

12-07-2015 00:05

Nedim Jukic Nedim Jukic

This one from the same locality as the previous on

06-06-2026 17:44

Steve Clements

Bonjour, This disco was on planed wood 3 x 1.5 cm

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Large Hymenoscyphus on herb stem
Edvin Johannesen, 28-09-2021 19:01
Edvin Johannesen
These long-stalked, 3-6 mm broad, rather bright orange-yellow apothecia (paler on the outside) were growing on a herb stem in a tall-herb spruce forest in Northern Norway. Not sure what herb, but the herb stem is marrow-filled.

Asci are IKI-. Paraphyses are very numerous and very distinctly multiguttulate. Spores measure typically 17-20 x 4-5 micr., with two tiny oil bodies near each end, becoming 1-septate. Some are germinating. Excipulum two-layered; a thick layer consisting of up to 25 micr. spherical or broadly oblong cells, and a thin layer of parallel rather thin hyphae.

I assume Hymenoscyphus s.l., a genus I am struggling with. But the asci are inamyloid, as far as I can see.

Opinions appreciated.

Thanks.
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Hans-Otto Baral, 28-09-2021 20:33
Hans-Otto Baral
Re : Large Hymenoscyphus on herb stem
H. repandus has such spores but miuch larger. Inamyloidity sometimes occurs in amyloi taxa. Globose cells I wonder because stipitate taxa of Hymenoscyphus do not have that. But Hymenoscyphus is clear based on the paraphyses.
Edvin Johannesen, 28-09-2021 20:44
Edvin Johannesen
Re : Large Hymenoscyphus on herb stem
OK, thanks. I guess we cannot conclude, then?
Hans-Otto Baral, 28-09-2021 21:04
Hans-Otto Baral
Re : Large Hymenoscyphus on herb stem
I am sorry but I would need a better docu.
Hans-Otto Baral, 29-09-2021 15:24
Hans-Otto Baral
Re : Large Hymenoscyphus on herb stem
I now agreed with Edvin that this should be Phaeohelotium epiphyllum, despite the long stipe.