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04-02-2014 17:53

hannie wijers

Hello, I'd like to anyone who can solve my proble

06-02-2014 08:47

Christian Lechat Christian Lechat

Hi to all,If anyone has the following articles I w

05-02-2014 21:13

Gilbert MOYNE

Bonsoir, Hier, j'ai récolté cette petite chose s

02-02-2014 16:27

Joop van der Lee Joop van der Lee

Found on deer dung. At first I had the impression

05-02-2014 19:24

Carmel Sammut

Found this specimen on decaying wood in an open ar

05-02-2014 19:22

Carmel Sammut

Found this specimen on decaying wood in an open ar

02-02-2014 11:15

Piet BORMANS Piet BORMANS

Hi everybody,Found on dead stems of Vaccinium myrt

01-02-2014 23:03

Yannick Mourgues Yannick Mourgues

Cette chose étrange trouvée sur Rosa.Cela ressem

04-02-2014 21:22

Christian Lechat Christian Lechat

Dear friends,I would need the following document:

03-02-2014 19:46

Chris Yeates Chris Yeates

Bonsoir tousthis recent thread: http://www.ascofra

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Setose pyrenomycete on Cirsium
Maren Kamke, 02-01-2016 10:11
Maren KamkeHi everybody,
first of all I wish you all a Happy New Year 2016.

I found this species on moist lying cirsium-stalks. 0,15 mm diam. Around the neck covered with thickwalled, brown setae up to 62 x 5 µm. Ascospores 13-16 x 3,5-4 µm, second cell enlarged, hyaline, 3-septate, Asci 50 x 9, biseriate, IKI negative with 8 spores. There is an anamorphe on the same stalk, 260 x 11 µm, septate, Conidia 18-19 x 6,5-7, brown, 3-septate and verruculose.
Regards, Maren

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Jacques Fournier, 02-01-2016 13:30
Jacques Fournier
Re : Setose pyrenomycete on Cirsium
Hi Maren,
as for any pyrenomycete s. l. the first thing to check is whether asci are uni- or bitunicate. They seem to be bitunicate on photo 6. Are ascospores hyaline or greyish as suggested on your photos?
I think of a Capronia but let's wait for Gernot's opinion.
Cheers,
Jacques
Björn Wergen, 02-01-2016 17:55
Björn Wergen
Re : Setose pyrenomycete on Cirsium
Hi Maren,

this is clearly Capronia. Did you test in KOH+IKI? It should change blue.

I think its near C. pilosella.

regards,
björn
Maren Kamke, 02-01-2016 21:15
Maren Kamke
Re : Setose pyrenomycete on Cirsium
Hi Jacques, hi Björn,
thank you very much, it is indeed a Capronia species, the asci are bitunicate, the ascospores are grey, not hyaline, how I first thought. After KOH-treatment changes the colour to blue with IKI.
I think it could be C. pilosella.
Thanks a lot
Regards, Maren

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