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28-03-2026 17:41

Louis DENY

Bonjour forum,Mollisia trouvée sur tige de Molini

30-03-2026 12:03

William Slosse William Slosse

Hello all,On 27/03/26, in Kraaiveld in Wingene (Be

30-03-2026 09:53

Yanick BOULANGER

BonjourVoici des petites fructifications poilues s

30-03-2026 12:18

Sylvie Le Goff

BonjourRécolté sur la base de Pteridium aquilinu

25-03-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a dead b

27-03-2026 10:47

Ã…ge Oterhals

I have tentatively identified this Stictis to S. f

28-03-2026 07:55

Marc Detollenaere Marc Detollenaere

Hello everybody,Yesterday I found a number of whit

26-03-2026 15:31

Ã…ke Widgren Ã…ke Widgren

Hello,I found this one in October last year, on r

27-03-2026 15:23

Gernot Friebes

Hi,this Trichopezizella deviates from typical T. b

27-03-2026 15:08

Gernot Friebes

Hi,I'm looking for help with this coelomycete on C

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Calycina cruentata
Marcus Yeo, 06-11-2013 22:51
I've been puzzling over this specimen for a while. Having compared it with some of Zotto's images I think it is Calycina cruentata. It also compares well with a previous post on Ascofrance.

It was growing on dead monocotyledonous leaves (Phragmites australis or Cladium mariscus) in lowland fen.


Apothecia are white, short-stalked, <0.5 mm diameter.


Excipulum is of thin-walled cells. Marginal cells are ca 20 µm, with oil-filled contents.


Asci 45-60 x 4-5 µm. Not sure whether croziers are present or not. Reaction of ascus tip in IKI is ambiguous – apparently red in some cases, but seemed to be blue in others.


Paraphyses are ca 2 µm wide, with oil-filled contents.


Spores (7-)8-10 x 1.5 µm, with a few small oil bodies.


Am I correct in identifying this as C. cruentata? Thanks in advance for help.

Marcus

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Hans-Otto Baral, 07-11-2013 10:34
Hans-Otto Baral
Re : Calycina cruentata
Yes, clearly C. cruentata.

The blue IKI reaction appears at low concentration, the red at higher.

Zotto
Marcus Yeo, 07-11-2013 14:01
Re : Calycina cruentata
Thank you!

Marcus