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04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

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Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

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Hello I want to ask you if you have found this ye

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Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

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31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

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Lasioshaeria angustispora ?
Pascal RIBOLLET, 17-03-2016 09:59
Bonjour Forum,

Voici une récolte qui semble appartenir au genre Lasiosphaeria. Les spores non septés, hyalines, droites, 45-52 x 3-3,5 µm, avec apicule filiforme de 6-8 µm de long m'orientent vers L. angustispora (avec la clé de Jacques sur les espèces lignicoles dans Mycotaxon).
Qu'en pensez-vous ? Quelqu'un aurait-il de la doc sur cette espèce, ou bien un accès à l'ouvrage de Vasilyeva (1998) dans lequel elle décrit L. angustispora ?


Vasilyeva, L.N. 1998. Nizshie Rasteniya, Griby i Mokhoobraznye Dalnego Vostoka Rossii. 4:1-419


Pascal

  • message #41598
  • message #41598
Gernot Friebes, 17-03-2016 10:05
Re : Lasioshaeria angustispora ?
Hi Pascal,

attached you can find the original description by Vasilyeva.

Best wishes,
Gernot
  • message #41599
  • message #41599
Pascal RIBOLLET, 17-03-2016 10:19
Re : Lasioshaeria angustispora ?
Hi Gernot,

So quickly !!
Many thanks !

Best wishes
Pascal
Andrew N. Miller, 24-11-2017 21:26
Andrew N. Miller
Re : Lasioshaeria angustispora ?
Dear Pascal,

My apologies for taking so long to sequence this specimen, but I have good news! The LSU and B-tubulin sequences were successful and they come out in the Helminthosphaeriaceae. Your specimen is Hilberina rhynchospora.


Please see our paper here: http://wwx.inhs.illinois.edu/files/5714/0191/3047/Helminthosphaeriaceae_Miller_et_al_Mycologia2014.pdf


I have Larissa's type specimen here of Lasiosphaeria angustispora and I will examine it over the holidays and compare it to your material, but I am sure that this is H. rhynchospora.


We found this species a few years ago here:


France, Limousin, Department of Haute-Vienne, Roussac, banks of La Crouze river, 46.08N, 300 m elev., 22-April-2011, A.N. Miller, S. M. Huhndorf, J. Fournier, A. Brissard


Ours was the second find (other than the type specimen) so yours is the 3rd time this species has ever been found! Excellent discovery!


Best,
Andy