07-05-2013 11:54
Miguel Ángel Ribes
Another Mollisia? in wood without bark, no more th
06-05-2013 10:55
Yannick Mourgues
Bonjour à tous.Qui aurait ces docs en pdf ? Ou qu
04-05-2013 22:20
Chris Yeates
Bonsoir tousthere seems to have been a glut of cop
05-05-2013 14:25
Stefan BlaserHello everybody Here's already my next problem:
06-05-2013 00:07
Michel Hairaud
Bonjour, Je sollicite votre aide pour cette réco
05-05-2013 11:13
Nicolas VAN VOOREN
Bonjour.Je cherche l'article suivant : Yao Y.J. &a
01-05-2013 23:52
Joop van der Lee
Found on horse dung.Asci: 169.41-169.67x31.06-31.5
03-05-2013 22:59
Joop van der Lee
Found on horse dungAsci 75.40-80.55x15.74-16.04 um
Niesslia-like Perithecia on Well Rotted Alnus Trunk
Peter Thompson,
13-05-2018 12:43
I have found some tiny, spherical perithecia with short hairs growing on decorticated and well decayed wood from a trunk of Alnus glutinosa.
The hairs are thick walled, dark brown, with bulbous bases and rounded tips. They strongly resemble the rigid hairs of species of Niesslia, typically measuring 82.5 - 92.5 x 5.25 um.
The spores are 8- 11-septate, filled with tiny drops in all cells and typically measuring 56 - 65 x 8 - 8.5 um. Hyaline and tapering to rounded ends. there are 8 spores per ascus. The ascus tips show no reaction to lugol.
I have attached a photo of the fruit bodies and a micro photo of the hairs, asci and spores.
I wonder if anyone has an idea as to what they might be?
Thank You,
With Best Wishes,
Peter.
Gernot Friebes,
13-05-2018 12:51
Re : Niesslia-like Perithecia on Well Rotted Alnus Trunk
Hi, Peter,
the ascomata and ascospores remind me of Acanthostigma – it might be worth looking into that direction.
Best wishes,
Gernot
the ascomata and ascospores remind me of Acanthostigma – it might be worth looking into that direction.
Best wishes,
Gernot
Peter Thompson,
13-05-2018 18:36
Re : Niesslia-like Perithecia on Well Rotted Alnus Trunk
Hello Gernot,
Thank you for your reply.
Acanthostigma is an unfamiliar genus for me, so I have had a look into the options for host type and macro / micro characteristics and I now believe that my sample is A. minutum.
Thank you for your help.
With Best Wishes,
Peter.
Thank you for your reply.
Acanthostigma is an unfamiliar genus for me, so I have had a look into the options for host type and macro / micro characteristics and I now believe that my sample is A. minutum.
Thank you for your help.
With Best Wishes,
Peter.