Asco on branch - Forum ASCOFrance

27-11-2025 15:41

Hysteriales (Mytilinidion mytilinellum??) on Larix cone, with too? big spores - Denmark

Thomas Læssøe

Spores brownish, typically 4-celled; 26.8 x 2.4;

27-11-2025 12:01

Valsa/Cytospora on Cryptomeria bark - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10496727

27-11-2025 11:46

another loculo on Aesculus with muriform spores - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10493918

27-11-2025 11:31

Loculo on Aesculus - Denmark

Thomas Læssøe

Collectors notes: Immersed ascomata, erumpent thro

23-09-2025 13:31

"Bertia-like" Sordariales on Typha - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10534623

25-11-2025 14:24

Anybody recognize this strange anamorphic fungus on Sambucus nigra, Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10490522

26-11-2025 18:13

All Mycotaxon issue available in BHL

Jason Karakehian

The entire run of Mycotaxon is now available throu

21-11-2025 15:22

asco 21-11-25

Vasileios Kaounas

Found in moss, forest with Pinus halepensis. Dime

24-11-2025 18:17

Hymenoscyphus sp

ruiz Jose

Hola en madera, quizás de alnus. Esporas(12.1) 12

25-11-2025 11:03

Possibly "Clavaria incarnata"?

Mick Peerdeman

Hi all,One of my earliest microscopy attempts, so

Asco on branch

Thorben Hülsewig, 19-05-2018 23:46

Hi there,

today i found this asco on a branch (Fagus sylvatica).
The spores are 3 Micrometer in diameter.
What could that be ?

best regards,
Thorben

Stip Helleman, 20-05-2018 01:07

Re : Asco on branch

Hi THorben,
the most likely option is Hyphodiscus theioideus.

Herzlich,
Stip

Hans-Otto Baral, 20-05-2018 08:24

Re : Asco on branch

I have the same idea, and I would like to know the marginal hairs as well as the Lugol reaction of the ascus apex. H. theiodeus is fungicolous, it always grows on corticioid basidios like Peniophora.

Thorben Hülsewig, 20-05-2018 12:54

Re : Asco on branch

Hi there,

that is it :)
I see also a corticioid basidio, but i didn't bother with him anymore.
Here are the marginal hair and lugol reaction pcitures.

best regards,
Thorben

Thorben Hülsewig, 21-05-2018 11:45

Re : Asco on branch

Is it normal that the lugol reaction is so various ?

Hans-Otto Baral, 21-05-2018 13:49

Re : Asco on branch

Yes, very good photo of the hairs.

The colour of the apical ring reaction simply depends on the IKI concentration (blue when low, red when high). This is type RB of hemiamyliodity.

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