09-05-2013 12:48
Joop van der Lee
Found on horse dungAsci: 137.74-162.05x19.30-22.77
09-05-2013 13:55
Javier Retamino Hernandez
Hola a todosQuiero consultaros sobre una pequeña
09-05-2013 10:52
Maren Kamke
Hello,I need your help with a strange asco, which
07-05-2013 17:09
Joop van der Lee
Found on horse dung.Excuses for the photo's they
05-05-2013 20:19
Maren Kamke
Hello,I found this one on Quercus sp., I think. I
06-05-2013 21:35
Spooren Marco
Hello,I'am looking for some lterature (about coelo
10-03-2013 11:10
Björn Wergen
Hi again,do you also think that this collection ca
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.