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16-07-2025 17:34

Sphaerulina cornicola versus Septoria cornina
Bernard Declercq Bernard Declercq

Hello,I have trouble distinguishing above mention

14-07-2025 11:20

Une hélotiale sur Sphagnum palustre
Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

15-07-2025 13:27

literature request
Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

16-01-2023 21:31

Troposporella fumosum => Troposporella monilipes
Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Hypoxylon cf ticinense
Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Jackrogersella minutella VS Hypoxylon cohaerens var. microsporum
Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Olla aff. millepunctata (croziers +) on Rubus idaeus
Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Rutstroemia ulmariae(?) on Saxifraga rotundifolia
Gernot Friebes

Hi,do you think this collection could be R. ulmari

25-02-2023 18:36

Nectria
Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

12-07-2025 16:45

Sur écorce de Hêtre
Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'avais d'abord pensé à des stro

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Helvella-Dissingia sp in coastal dunes
Marc Detollenaere, 03-03-2024 15:14
Marc DetollenaereDear forum,

In the moss dunes of Bray-Dunes(F),one of my friends  found some brown cupulate fruit bodies with short whitish stem. No ribs were observed. Hymenium brown. Exterior of cup much paler.
Asci were 300-350µ long and IKI neg. No croziers were found.
Spores were ellipsoid, 22-24x12-13µ and contained 1 large guttule and several small ones.
Helvella or young Dissingia?
Any help would be appreciated.

Marc
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Nicolas VAN VOOREN, 04-03-2024 07:35
Nicolas VAN VOOREN
Re : Helvella-Dissingia sp in coastal dunes
You should look at the base of asci and confirm the absence/presence of crozier, this the best way to separate Helvella from Dissingia.
Nicolas VAN VOOREN, 04-03-2024 07:38
Nicolas VAN VOOREN
Re : Helvella-Dissingia sp in coastal dunes
I'm sorry, I didn't pay attention that you mentioned "no croziers". So Dissingia leucomelaena is highly probable. Check with your friends that there were some Pinus trees nearby.
Marc Detollenaere, 04-03-2024 18:29
Marc Detollenaere
Re : Helvella-Dissingia sp in coastal dunes
Indeed, Pinus nigra nearby.
Thanks Nicolas

Marc
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