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19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

18-03-2026 17:22

Katarina Pastircakova

Hi there,I'm looking for the following literature:

19-03-2026 10:56

Thomas Læssøe

https://svampe.databasen.org/observations/10505643

27-02-2026 11:21

Yannick Mourgues Yannick Mourgues

Hi to all. Here is a specie that can may be relat

18-03-2026 18:42

Gonzalez Garcia Marta

I have collected some lyre-shaped apothecia on the

27-11-2025 15:41

Thomas Læssøe

Spores brownish, typically 4-celled; 26.8 x 2.4;

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Nemania diffusa complex
Yannick Mourgues, 27-02-2026 11:21
Yannick Mourgues
Hi to all.

Here is a specie that can may be related to Nemania diffusa complex, found in Gwadeloupe next year on a decorticated wood on the ground. 

Your opinion on it could be interesting for me.

The stroma is elongated, ranging in length from 11 to 26 mm but in width from 4 to 6 mm. The stroma is 1 to 1.2 mm thick. The stromal surface is often cream to yellowish-cream in color and frequently disappears to reveal an underlying black carbonaceous layer. 

The reaction to KOH is negligible or sometimes only very slightly yellowing (possibly colored by the aforementioned yellowish layer).
The ostioles are papillate and black. The black carbonaceous layer surrounds the perithecia, covers the stroma, and extends into the xylem beneath the stroma. 

Cylindrical IKI+ asci measure 120–130 x 6–8 µm. The apical ring generally appears to be as tall as it is wide: H x W = 1.5–1.6 x 1.6 µm. The spores are uniseriate.

The spores are dark brown to blackish with a straight germ slit running from end to end. They often have one rounded tip while the other is pinched.


They measure 11.8–13.2 × 5.6–6.4 µm, with Q=1.9–2.25 and N=25.


Thanks in advance !
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Yannick Mourgues, 18-03-2026 23:52
Yannick Mourgues
Re : Nemania diffusa complex
Cette récolte n'inspire personne ? Dommage !