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15-12-2025 15:48

Danny Newman Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Johan Boonefaes Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 21:11

Hardware Tony Hardware Tony

Small clavate hairs, negative croziers and IKI bb

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

15-12-2025 21:47

Pol Debaenst

Good evening, On 12/11/2025 I found ascomycetes w

15-12-2025 07:05

Danny Newman Danny Newman

Pseudosclerococcum golindoi (det: Zotto)near Cosb

15-12-2025 11:49

Danny Newman Danny Newman

ITS sequences from the following two collections B

15-12-2025 12:34

Danny Newman Danny Newman

indet. Rhytismataceae on oak leafnear Purchase Roa

09-12-2025 12:06

Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche l'article concernant Hypobryo

13-12-2025 17:26

Buckwheat Pete

Hello everyone,I have a rather interesting ascomyc

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Hemiamyloid on leaves
Marja Pennanen, 20-10-2010 13:34
Hello,

I found these on my own yard on (Betula) leaves today.
These are about 0,2-0,5 mm wide:
  • message #13075
Marja Pennanen, 20-10-2010 13:36
Re:Hemiamyloid on leaves
The spores are 15-18x4-5, with two small droplets.
Asci are 100-130x10-12 and hemiamyloid (IKI red).
Paraphysesa are 2-3 micrometers wide and can branch.
  • message #13076
Marja Pennanen, 20-10-2010 13:37
Re:Hemiamyloid on leaves
Ascus tips in Lugol.

I found no Calycellina, that fits.

Marja
  • message #13077
Hans-Otto Baral, 20-10-2010 15:37
Hans-Otto Baral
Re:Hemiamyloid on leaves
Hi Marja

splendid microphoto! This is an Allophylaria, closely related to Calycellina in my opinion. I think it is A. zenobiae (maybe as Conchatium in Index Fungorum). A. nervicola has shorter spores.

Oil drops in spores are usually some minute near each end, but submature spores have one bigger as you figure.

If you look at the excipulum near stip or near margin the cells should be a bit gelatinized (other Allophylarias have more gel).

Zotto
  • message #13078
Marja Pennanen, 20-10-2010 21:44
Re:Hemiamyloid on leaves
Thank you :)

All information is more than wellcome.

I only know Allophylaria vulgaris, which is very common here now for instance on Betula twigs.
I (almoust) know it from it's appearance and haven't studied it for a long time, maybe it's time for a comparision.

This species maybe once again new to Finland-or maybe not...

Marja
Hans-Otto Baral, 20-10-2010 21:52
Hans-Otto Baral
Re:Hemiamyloid on leaves
Probably new. But A. vulgaris is not an Allophylaria, it is a Calycina.

I admit the two genera are quite close....

Calycina vulgaris is inamyloid, can you confirm?

Zotto
Marja Pennanen, 20-10-2010 22:12
Re:Hemiamyloid on leaves
Let's see, if I have a specimen. If I did not collect it, I'll do that later this week.

I've got Lugol only for maybe half a year and haven't used it for this (A. or) C. vulgaris yet.

Marja

Marja Pennanen, 20-10-2010 23:08
Re:Hemiamyloid on leaves
Hello,

Zotto you making me doubt everything I thought I knew. Maybe I'll bring all the species here just to be sure ;)
I had some on the twig, where was R. firma, too.
I can't say, that the fungus I thoght originally as A. vulgaris is inamyloid, but I can't say that it's amyloid either. It's not so obvious, maybe it's hemiamyloid...

Just too tired now, I'll go and get some rest: Marja