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15-07-2025 13:27

Angel Pintos Angel Pintos

Hello, does anyone have access to the following ar

14-07-2025 11:20

Michel Hairaud Michel Hairaud

Bonjour, Voici une espèce de  (?) Hyaloscyphace

16-01-2023 21:31

Riet van Oosten Riet van Oosten

Hello, Nearby the find of Calycina claroflava on

14-07-2025 17:55

Yanick BOULANGER

BonjourAutre dossier laissé en suspendJe viens de

14-07-2025 11:17

Yanick BOULANGER

BonjourJ'ai un dossier Jackrogersella qui est rest

14-07-2025 15:52

Gernot Friebes

Hi,I wanted to share this collection on Rubus idae

14-07-2025 13:37

Gernot Friebes

Hi,do you think this collection could be R. ulmari

25-02-2023 18:36

Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

12-07-2025 16:45

Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'avais d'abord pensé à des stro

05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

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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