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08-04-2026 20:33

Gyromitra sp. ?
Vasileios Kaounas Vasileios Kaounas

Found 07-04-26, in Abies cephalonica. Diameter 1,

08-04-2026 10:39

Littérature Korf
FRANCIS FOUCHIER

Bonjour , je recherche en pdf cet article: KORF R

06-04-2026 15:04

Gnomoniaceae
David Chapados David Chapados

Hi! Could someone help me identifying this specim

29-06-2016 15:18

Scopinella
Per Vetlesen

HiIt was found on the bark of a dead branch of Jun

07-01-2018 22:47

Scopinella?
Per Vetlesen

Grown in moist chamber on bark/resin of fallen Pin

06-04-2026 21:36

Literature search
Viktorie Halasu Viktorie Halasu

Hello, could anyone please send me the article wi

06-04-2026 19:40

Nectriaceae on Fagus
David Gibbs David Gibbs

Help with this one much appreciated, on rotting Fa

06-04-2026 11:07

Arachnopeziza delicatula
Louis DENY

Bonjour forum, Trouvé sur bois de feuillu très d

06-04-2026 16:24

Helotiales on Pinus needles
Juuso Äikäs

Last Tuesday I found some tiny white Helotiales gr

05-04-2026 13:33

Mollisia sp?
Sylvie Le Goff

Bonjour à tousPuis avoir votre avis sur ce champi

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Rutstroemia maritima?
William Slosse, 11-02-2026 22:15
William SlosseToday, February 11, 2026, we found the following Rutstroemia in the drifting dunes at Bredene (Belgian coast).
The habitat and substrate (dead leaves of Ammophila arenaria) suggest Rutstroemia maritima.
° Crystals present in the texture
° Croziers present
° Ascus tips euamyloid (in Melzer, my Lugol unfortunately appears to be degenerated...).
A sporee is currently being prepared to measure spores in water.
Can this observation be confirmed, or do further preparations need to be made/examined?
Thanks in advance,
William
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Hans-Otto Baral, 11-02-2026 22:30
Hans-Otto Baral
Re : Rutstroemia maritima?
The rather thin apical dome looks typical to me. Please do the spore photo in water to see living spores.
William Slosse, 12-02-2026 17:17
William Slosse
Re : Rutstroemia maritima?
And here are the spores from a sporee and measured in water:

(13.6) 14.1 - 17.8 (18.4) × (5.8) 6 - 7.5 (7.9) µm
Q = (2.2) 2.3 - 2.58 (2.6) ; N = 20
Me = 15.6 × 6.5 µm ; Qe = 2.4

Additional questions:
1. According to Index Fungorum, the current name is Clarireedia maritima. Is this nomenclature preferable?
2. Should this species be listed as Clarireedia cf maritima, or is it clearly described and recognized as such?

Thanks in advance,
William

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Hans-Otto Baral, 12-02-2026 17:52
Hans-Otto Baral
Re : Rutstroemia maritima?
This is a full match. The genus is a matter of taste. From DNA Clarireedia is a well-defined group, but from morphology I see hardly any chance to separate it from the core of Rutstroemia.

In my folders I use Clarireedia. There you can see the high similarity among the collections on Ammophila.
William Slosse, 12-02-2026 18:52
William Slosse
Re : Rutstroemia maritima?
Thx, Zotto!