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Cryptodiscus species ?
Aafke Buijs,
24-09-2015 12:47
On deteriorated wood of broadleaves (Craetagus, Populus, Sambucus) found these small orange apothecia, that at first sight looked like a nectria.
Under the lens it seemed a Stictis but then under the microscope it showed large, seven septated spores, pointed at the ends, the middle fragments somewhat thickened.
Spores measured about 65 mu and the asci about 132 mu.
Apothecia partially sunken in the substrate, whitish bulb surrounded by an orange layer.
I would appreciate your help.
Greetings, Aafke
Martin Bemmann,
24-09-2015 13:14

Re : Cryptodiscus species ?
Hi Aafke,
this could be Pseudotrichia viburnicola. Can you give a closer look on the fruitbodies?
I would expect some more granular content in the spores.
Regards
Martin
this could be Pseudotrichia viburnicola. Can you give a closer look on the fruitbodies?
I would expect some more granular content in the spores.
Regards
Martin
Aafke Buijs,
24-09-2015 13:33
Re : Cryptodiscus species ?
Hi Martin,
More pictures coming up soon.
For the moment, thank you for your suggestion. Pseudotrichia viburnicola looks like a good candidate !
Do you know were I could find a description of this species ?
More pictures coming up soon.
For the moment, thank you for your suggestion. Pseudotrichia viburnicola looks like a good candidate !
Do you know were I could find a description of this species ?
Martin Bemmann,
24-09-2015 13:49

Re : Cryptodiscus species ?
Dear Aafke,
if you search the forum you will find some collections and a file by me:
http://www.ascofrance.fr/uploads/document/80-0001.pdf
regards
Martin
if you search the forum you will find some collections and a file by me:
http://www.ascofrance.fr/uploads/document/80-0001.pdf
regards
Martin
Aafke Buijs,
24-09-2015 13:57
Re : Cryptodiscus species ?
Ah, thanks.
Aafke Buijs,
25-09-2015 16:06
Martin Bemmann,
25-09-2015 16:37

Re : Cryptodiscus species ?
Thanks Aafke! Now the spore content looks more familiar to me.
Is the first of the new pictures just in water, or did you add KOH?
What kind of iodine did you use, Melzer's or Lugol?
Regards
Martin
Is the first of the new pictures just in water, or did you add KOH?
What kind of iodine did you use, Melzer's or Lugol?
Regards
Martin
Aafke Buijs,
25-09-2015 18:06
Re : Cryptodiscus species ?
I used KOH for the first picture and Melzer's as iodine.
Regards, Aafke
Regards, Aafke
Martin Bemmann,
25-09-2015 18:24

Re : Cryptodiscus species ?
Again thanks,
I suspected the use of KOH since I can't remember of such purple pigments in previous collections, interesting!
Regards
Martin
I suspected the use of KOH since I can't remember of such purple pigments in previous collections, interesting!
Regards
Martin