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01-09-2013 12:07

Piet BORMANS Piet BORMANS

Hello everybody, Last week I found this discomyce

31-08-2013 17:59

Piet BORMANS Piet BORMANS

BonjourJe n'ai aucune idee de ce que c'est cette a

31-08-2013 00:22

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos.Subo unas fotos de una Peziza que enc

30-08-2013 23:17

Esquivel-Rios Eduardo

Hola Todos.Esta Scutellinia encontrada en el tronc

30-08-2013 19:20

Malcolm  Greaves Malcolm Greaves

This Scutellinia was clustered on rotten wood in a

30-08-2013 10:57

FRANCIS FOUCHIER

Bonjour, je recherche au format pdf de préférenc

29-08-2013 15:15

Alessio Pierotti Alessio Pierotti

Someone can help me to find this book ?Sutton, B.C

27-08-2013 21:17

SYLVAIN ARD

Bonjour,Auriez-vous l'article suivant :Ju, Y.-M.,

27-08-2013 23:27

Marcus Yeo

BonjourI found this discomycete recently growing

26-08-2013 21:46

Pavol Palo

  Hello friends, may I ask you for help ? I wou

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Phaeohelotium or ?
Piet BORMANS, 01-09-2013 12:07
Piet BORMANSHello everybody,

Last week I found this discomycete growing on dead stem of Rubus fruticosus, but I can't
determinate. What's your advice?
Details:
Apothecia 0,3 – 0,5 mm. across. Sessile. Turbinate. With white discs that
become pink-red (with age?).  I have seen
no hairs outside (what's necessary in order to belongs to the Hyaloscyphaceae –
I mean?).
Asci:  IKI+. 70 – 80 x 6 – 7 mµ (with croziers- but I'm not certain).
Ectal excipulum of textura globulosa-angularis
Spores: 8 – 13 x 3 µm.  curved,  1 septe
Parafyses without refractive guttules


Regards
Piet Bormans


Ps : dimensions ( x 1000)   1  = 1,01 µm

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Hans-Otto Baral, 01-09-2013 13:22
Hans-Otto Baral
Re : Phaeohelotium or ?
Hi Piet

this is a Calycina, and one of those that turn red with age. Typical of the genus are the  apical ring type (very different from Phaeohelotium which has Hymenoscyphus-type), and the mollosioid VBs in the paraphyses (not clearly seen on your photos). 

I also think yours has croziers. I would compare this with my C. heterospora nom. prov. which had partly spores of different size within an ascus, but not always. This ispecies s related to C. parilis and C. herbarum but certainly not the same.
 
here a link
https://www.cubby.com/pl/heterospora/_c0652748b1c043108dde38f0e2fd6dab

Zotto
Piet BORMANS, 01-09-2013 16:00
Piet BORMANS
Re : Phaeohelotium or ?
Thank you very much Zotto


Piet