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21-10-2025 23:13

F. JAVIER BALDA JAUREGUI

Hello to everyone.Did you think it could, be a pyx

22-10-2025 06:43

Ethan Crenson

Hi all, I'm having some difficulty with this Orbi

22-10-2025 14:45

Lukas Verboom

Dear all,I collected this in the Netherlands, on t

22-10-2025 11:13

Jean-Luc Ranger

Bonjour,  Petites boules plus ou moins sphériqu

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

21-10-2025 21:25

Philippe PELLICIER

Bonjour,J'ai récolté en septembre sur une litiè

17-10-2025 18:45

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Oct. 2025.

21-10-2025 21:34

Margot en Geert Vullings

This cup fungus was found on the ground in a damp

21-10-2025 04:52

Francois Guay Francois Guay

I found what might be Chlorociboria aeruginella on

25-11-2016 13:54

Stephen Martin Mifsud Stephen Martin Mifsud

Hi, I found numerous seeds of Washingtonia robusta

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Still one, Rhytismatales on ferns
Marja Pennanen, 30-08-2010 09:29
Hello,
this should have been a breakable mystery, but I had no luck with this, too :(
These are about 0,5-1mm wide and grew on Pteridium remnants,
  • message #12695
Marja Pennanen, 30-08-2010 09:35
Re:Still one, Rhytismatales on ferns
The spores were 40-80x2-3 and asci 90-150x10-15.
Paraphyses were only little curved at the tips.
I was going to determine them as Coccomyces coronatus.
Just happened to pick some of them, too with me and compared.
These are smaller, spores are narrower, asci shorter and paraphyse tips straighter.

Marja
  • message #12696
Hans-Otto Baral, 30-08-2010 20:51
Hans-Otto Baral
Re:Still one, Rhytismatales on ferns
I asked Henrik Lantz and he answered the following:
----
The only species of Rhytismatales I know of that occurs on ferns, is Mellitiosporium pteridinum (W. Phillips & Buckn.) Sacc. This species is unlikely to be a member of the core group of Rhytismatales. If Marja was thinking about Coccomyces when she looked at the specimen, it is also unlikely that it was a Mellitiosporium she saw, as Coccomyces always is circular or angular. At the moment I have no suggestion. Coccomyces coronatus is a generalist found on many hosts, and perhaps it can occur on ferns as well?

Very interesting find in any case, thanks for telling me about it.
-----
He also said that "it is of course very hard for me to say anything for certain without the specimen in hand. I can only guess."

Zotto
Marja Pennanen, 31-08-2010 07:50
Re:Still one, Rhytismatales on ferns
Thank you!

You are doing a huge job with these findings!

I should comtact Henrik personally, I've sent him some specimen ealier.
I just thought, that this would be a piece of cake for someone here.

There's another photo of these on the stems.
  • message #12728
Marja Pennanen, 31-08-2010 07:54
Re:Still one, Rhytismatales on ferns
Doesn't it look a little like this, which I suppose is Coccomyces coronatus:
  • message #12729
Marja Pennanen, 31-08-2010 07:56
Re:Still one, Rhytismatales on ferns
The views from the later specimen were like this:

Marja
  • message #12730
Hans-Otto Baral, 31-08-2010 11:03
Hans-Otto Baral
Re:Still one, Rhytismatales on ferns
yes, the latter two seems to be C. coronatus, I think. What leaves are those?

Zotto
Marja Pennanen, 31-08-2010 14:40
Re:Still one, Rhytismatales on ferns
Hi,

they are here on Betula leaves. I think, that I haven't found them on others yet.
By the way, I'm not ashamed of this freehand macrophoto insitu, eventhough the focus could have been in front.
They seem to be quite pretty dressed in a modest way ;)

Now I leave for Boletus-hunting, hopefully a lucky one: Marja