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13-10-2025 19:05

Blanc sur tronc décortiqué
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Bonjour forumSur tronc décortiqué de feuillu x,

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On Robinia pseudoacasia
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Lophiostoma
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Hymenoscyphus with a reddish stipe
Francois Guay Francois Guay

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White asco on Fagus grandifolia leaf
Francois Guay Francois Guay

Hi everyone,   I found this white, star-shaped

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Unknown asco found in a root hole
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Hymenoscyphus
Yannick Mourgues, 01-07-2008 23:58
Yannick MourguesHi.

Here is probably Hymenoscyphus sp. (near repandus ?) I have found on the Aubrac (48), France, on dead stems of grasses, on boggy ground.

Apothecia cream to pale ochraceous, reddening when damaged, up to 4mm diameter and 3,5 mm high, stalked.
Asci 85-90x8-9 µm, very faintly blue in IKI., arising from croziers.
Spores fusiform to sub-cylindrical, aseptate, 13-16(18)x5-6 µm, OCI = 3-4.
Paraphyses filled with refractive guttules.

What do you think about this specie ?

Thank's a lot for your help !

Yannick Mourgues