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28-08-2010 12:35

Hans-Otto Baral Hans-Otto Baral

On a Fagus log lying in mud of pond, soc. Orbilia

27-08-2010 20:35

Dirk Strobelt

Hello, I found under Pinus sylvestris on sandy

27-08-2010 13:59

Marja Pennanen

Now, that I learned the shape of the spores H. sc

27-08-2010 11:04

Marja Pennanen

Hello, is spite of unstudied old specimen, I went

27-08-2010 07:53

Alain GARDIENNET Alain GARDIENNET

Bonjour, Quelqu'un aurait-il le descriptif de l'

26-08-2010 20:39

Ismael Wind

On a dead branch of buxus i found black spots on t

26-08-2010 07:51

Alain GARDIENNET Alain GARDIENNET

Bonjour à tous, Je vous donne quelques informati

24-08-2010 16:54

Lothar Krieglsteiner Lothar Krieglsteiner

in the Plitvicka jezera National park I found a sm

24-08-2010 14:35

Lothar Krieglsteiner Lothar Krieglsteiner

... collected in National Park Plitvicka jezera, s

24-08-2010 08:13

Marja Pennanen

Hello again, I picked some Typhula crassipes an

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Annulusmagnus?
Hans-Otto Baral, 28-08-2010 12:35
Hans-Otto BaralOn a Fagus log lying in mud of pond, soc. Orbilia luteorubella (Tübingen). Sp. *16.5-21 x 6-6.7 µm. Asci with striking inamyloid apical ring.

The log is flooded after heavy rain, and the mud permanently moist in drier times.

It reminds me of Annulusmagnus triseptatus but spores early turn brown.

Zotto
  • message #12657
Hans-Otto Baral, 28-08-2010 12:36
Hans-Otto Baral
Re:Annulusmagnus?
Micro
  • message #12658
Gernot Friebes, 28-08-2010 12:59
Re:Annulusmagnus?
maybe Ascitendus austriacus. This species should have delicately striate spores.

Best wishes,

Gernot
Alain GARDIENNET, 28-08-2010 13:31
Alain GARDIENNET
Re:Annulusmagnus?
I'm agree with Gernot.
Alain
Hans-Otto Baral, 28-08-2010 19:51
Hans-Otto Baral
Re:Annulusmagnus?
Thanks, I never heard of that genus, nor Ascolacicola where it was first described. Is that only known from the type collection??? Incredible to believe.

The asci are with (dead) 130-140 x 9-10 µm a bit short (protologue: 160-200 x 8.5-10.5). The spores are smooth, in my opinion, but the protologue says nothing of a striation. In any case, this fits quite well!

Was the species redescribed later? I do not have Campbell + Shearer 2004. Nothing is said on the spore guttules, as usually.

Zotto


Gernot Friebes, 28-08-2010 20:23
Re:Annulusmagnus?
here you can find Campbell & Shearer (2004):

http://www.mycologia.org/cgi/content/full/96/4/822

Best wishes,

Gernot
Hans-Otto Baral, 28-08-2010 21:46
Hans-Otto Baral
Re:Annulusmagnus?
I now found that the spores become partly distinctly longitudinally striate when I put them in Melzer! Thereby they shrink a bit from 6-6.7 to 5.6-6.5 µm. Here a pic in water (live)
  • message #12668
Hans-Otto Baral, 28-08-2010 21:50
Hans-Otto Baral
Re:Annulusmagnus?
Here in Melzer.

I did not yet read the Campbell article but I am surprized that they describe a new genus for every species... Has that any sense?

Zotto
  • message #12671
Guy Garcia, 29-08-2010 08:40
Re:Annulusmagnus?
Hi Zotto,
You can download the paper here
http://www.mycologia.org/cgi/reprint/96/4/822.pdf
Best, Guy