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13-10-2025 19:05

Louis DENY

Bonjour forumSur tronc décortiqué de feuillu x,

17-02-2013 21:11

Peter Welt Peter Welt

Jamoni, P.G. 1998. Un nuovo discomicete coprofilo

11-10-2025 20:27

Marcel Heyligen Marcel Heyligen

Found on a barked branch, 14 mm in diameter, of Ro

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Jean-Luc Ranger

bonjour à tous, Je ne vois pas comment l'on peut

09-10-2025 22:14

S. Rebecca

We just had the Bavarian Mycology Conference in Au

10-10-2025 00:49

Ethan Crenson

Hello all, This was found last weekend on a hardw

06-10-2025 15:57

David Chapados David Chapados

Hi, Could anyone help me with this Lophiostoma? 

04-10-2025 02:13

Francois Guay Francois Guay

Hi everyone,   I found this Hymenoscyphus growi

03-10-2025 22:17

Francois Guay Francois Guay

Hi everyone,   I found this white, star-shaped

03-10-2025 22:03

Francois Guay Francois Guay

Hi everyone, I found this weird asco growing on wo

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X. rhopaloides
Menno Boomsluiter, 01-03-2021 17:01
I was wondering, if any, what the status of Xylaria rhopaloides is in Europe.

It is not present in the key by mr. Fournier. Maybe he can shed light on it.

The species is present in the book of Bertault.

Greetings,

Menno
Jacques Fournier, 01-03-2021 20:23
Jacques Fournier
Re : X. rhopaloides
Hi Menno,

if I were you, I would forget about Bertault and his crappy species concepts.

X. rhopaloides is an ill-defined an dubious tropical or subtropical species, variously interpreted, referred to X. curta by Dennis, to X. castorea by Ju & Rogers.

However, if you found something in your region recalling X. rhopaloides sensu Bertault, please show it on the forum, with details on surface anatomy and ascospore morphology.

Cheers,

Jacques
Menno Boomsluiter, 10-03-2021 19:28
Re : X. rhopaloides
Hello Jacques,

Thank for your clear answer.

I was asked to confirm a find of X. rhopaloides. In the abcense of any accessible key I started wondering whether this species excisted in Europe at all. The before mentioned collection brought me straight to X. hypoxylon thsmks to your excellent key.

Spores:(9,9) 10,6 - 11,9 (14) × (3,8) 4,4 - 5,1 (5,3) µm
Q = (2) 2,2 - 2,6 (2,8) ; N = 15
Me = 11,3 × 4,7 µm ; Qe = 2,4

I sent you two photo's no1 the collection which I have keyed out as X. hypoxylon.

no2. a collection presumed to be X. rhopaloides.

Thank you very much for your help
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  • message #67860
  • message #67860