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28-04-2024 18:05

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,J'ai trouvé ce matin ce

28-04-2024 13:30

Juuso Äikäs

On Friday I found these pale, hairy little discos

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-04-2024 10:07

Mathias Hass Mathias Hass

Hello, Does anyone know what this is? Found on J

24-04-2024 21:54

éric ROMERO éric ROMERO

Bonjour, J'ai trouvé ce Lasiobolus sur laissées

23-04-2024 15:18

Lothar Krieglsteiner Lothar Krieglsteiner

... but likely a basidiomycete. I hope it is o.k.

23-04-2024 13:17

Edouard Evangelisti Edouard Evangelisti

Bonjour à tous, Je viens de récolter ce que je

23-04-2024 21:49

Ethan Crenson

Hello all, A friend recently found this orange as

22-04-2024 11:52

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I made a loan of a collection of Microstoma

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

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Small pyreno on piece of wood
Sergey Markov, 21-02-2021 15:21
I found a lot of small pyrenomycetes on piece of unidentified wood, occupied by Lindtneria leucobryophila. This piece of wood was buried deeply in leaf litter.  I found these pyreno's only on wood from herbarium exsiccata of Lindtneria, and i don't have photos of this pyreno 'in situ', only have photos of dried specimens. On photos 'in situ' only Lindtneria is visible...

Perithecia up to 0.5 mm in diameter, part of them was turned whitish during drying. No hairs on perithecia are visible. Mycelial tomentum present at lower part of them.

Ascospores mostly aseptate, but some multiseptate.

Ascospores measure in Melzer after NH4OH:

(49.04) 52.74 - 64.06 (77.46) × (3.87) 4.72 - 5.82 (6.43) µm
Q = (8.79) 9.76 - 13.00 (15.37) ; N = 41
Me = 58.57 × 5.25 µm ; Qe = 11.27

Ascospores measure in water (from another spcimen)

(46.03) 47.08 - 56.14 (57.19) × (3.89) 4.36 - 5.54 (6.06) µm
Q = (8.59) 9.08 - 11.09 (12.71) ; N = 19
Me = 50.60 × 5.01 µm ; Qe = 10.19

More information is on attached photos.

What this is may be? Lasiosphaeria sp.? Which species?
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Andrew N. Miller, 21-02-2021 15:58
Andrew N. Miller
Re : Small pyreno on piece of wood
Lasiosphaeria ovina

Andy
Sergey Markov, 21-02-2021 16:15
Re : Small pyreno on piece of wood
Thank You very much, Andrew!

I first also assumed this species, but length of ascospores up to 64.06 (77.46) um seems to be very long. Or such greater spore length is normal for this species?
Andrew N. Miller, 21-02-2021 17:45
Andrew N. Miller
Re : Small pyreno on piece of wood
If you only measure 5 or 6 collections, you will find a small range in spore lengths.  I measured over 200 collections of Lasiosphaeria ovina for my Ph.D. and found a very large range in ascospore lengths including up to your longest lengths.

Cheers,
Andy
Sergey Markov, 21-02-2021 17:59
Re : Small pyreno on piece of wood
Thank You again, Andrew!

Now I'm sure it's L.ovina.
Oluna & Adolf Ceska, 21-02-2021 20:45
Oluna & Adolf Ceska
Re : Small pyreno on piece of wood
Cf.: Lasiosphaeria ovina  https://mushroomobserver.org/77713