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Still one, Rhytismatales on ferns
Marja Pennanen,
30-08-2010 09:29
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,
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
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
Hans-Otto Baral,
30-08-2010 20:51
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
----
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
Marja Pennanen,
31-08-2010 07:54
Marja Pennanen,
31-08-2010 07:56
Hans-Otto Baral,
31-08-2010 11:03
Re:Still one, Rhytismatales on ferns
yes, the latter two seems to be C. coronatus, I think. What leaves are those?
Zotto
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
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