White hairy on Angelica - Forum ASCOFrance

11-04-2026 15:45

Article search - Octospora ithacaensis

Zuzana Sochorová (Egertová)

Please, could anyone send me this paper?Moyne G.,

11-04-2026 13:34

Requesting help with Dasyscyphella sp. ID

Artem Ptukha

Hello, I am seeking assistance with the identific

11-04-2026 10:42

Una para ID

Castillo Joseba

Me mandan el material de Galicia, España, recolec

11-04-2026 10:19

Bientôt, un nouveau livre important

Michel Hairaud

Chers amis d'Ascofrance , voici une très bonne no

11-04-2026 10:10

An important new book

Michel Hairaud

Dear Ascofrance members, here is some very good ne

10-04-2026 23:22

Pyreno on Phragmites australis

Gernot Friebes

Hi,ascospores are 1- to 3-septate, approximately

10-04-2026 15:51

Botrytis ficariarum & Peronospora ficariae?

William Slosse

Hello everyone, On 08/04/26, I found a growth sit

09-04-2026 15:25

Slerotinia verrucispora ???

Jac Gelderblom

On bare soil between mosses Ifound an asco I deter

09-04-2026 13:55

Small-spored "Diplodia" on broom (Cytisus scoparius) - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10589176

09-04-2026 10:12

Melanosporalian on attached decayed wood on fallen Carpinus, Denmark - very long-necked

Thomas Læssøe

https://svampe.databasen.org/observations/10587061

White hairy on Angelica

Stefan Jakobsson, 04-05-2021 23:47

The worst frost nights are now over here in southern Finland (since 48 hours) so more and more fungi are showing up. Here a very young white disco growing on a last year's stem of Angelica ?sylvestris. The diameter of the apos is about 350 µm and the hairs above 200 µm. I observed just a few ejected spores measuring on average 8,5 x 1,6 µm but I am trying to get more.

In the mean time I'd be happy for ideas on what it could be.

Hans-Otto Baral, 05-05-2021 11:14

Re : White hairy on Angelica

Trichopeziza mollissima I think.

Stefan Jakobsson, 15-05-2021 00:56

Re : White hairy on Angelica

Yes, thank you. Now when it has grown bigger it is definitely T. mollissima.

However, on the same culm there is now also another species with more yellowish hairs even if not as bright yellow as the one I have interpreted to be T. limonipilosa. The spores are 10.4 - 15.0 × 1.9 - 2.3 µm, with virtually no visible spore content. IKI faintly bluish, no croziers. Would this be T. sulphureopilosa?

Mirek Gryc, 15-05-2021 08:24

Re : White hairy on Angelica

Hi
These two species are very often found together.
If these are two separate species? As far as I know, work on them has not yet been completed. Zotto knows much more on this subject.
I am wondering, however, a blue reaction to iodine?
Such occurs after pre-treatment of asci in KOH.
Are you sure she was blue?
greetings
Mirek

Stefan Jakobsson, 17-05-2021 12:50

Re : White hairy on Angelica

I have not tried with KOH pretretment. But when adding Lugol to a water mount the colour is dirty bluish.

Mirek Gryc, 17-05-2021 14:38

Re : White hairy on Angelica

Hi Stefan

I only asked out of curiosity.
Porus Reaction T. mollissima and T. sulphureopilosa should be red.
Maybe this species is more complex than we think?
Or maybe you have a different genre?

Mirek

Hans-Otto Baral, 17-05-2021 16:18

Re : White hairy on Angelica

I remember a RB reaction in this group. Blue at low IKI concentration, dirty red at high.

After KOH there is only blue, of course (definition of hemiamyloidity).

Mirek Gryc, 17-05-2021 18:36

Re : White hairy on Angelica

Hi Zotto
So do you think Stefan used IKI in a low concentration?
Using after Lugol, KOH with low concentration, I also obtained a blue reaction.
How I will find fresh ascomata, I will check more closely.
Thank you Zotto.

Hans-Otto Baral, 18-05-2021 08:09

Re : White hairy on Angelica

Every hemiamyloid nreaction is blue whenever the fungus was KOH-pretreated. Then there is no chance to distinguish it from euamyloid reactions.

A low concentration of Lugol is a frequent case, yes i assume.

Accès membres

Forum AscoFrance