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13-10-2025 19:05

Louis DENY

Bonjour forumSur tronc décortiqué de feuillu x,

17-02-2013 21:11

Peter Welt Peter Welt

Jamoni, P.G. 1998. Un nuovo discomicete coprofilo

11-10-2025 20:27

Marcel Heyligen Marcel Heyligen

Found on a barked branch, 14 mm in diameter, of Ro

11-10-2025 14:20

Jean-Luc Ranger

bonjour à tous, Je ne vois pas comment l'on peut

09-10-2025 22:14

S. Rebecca

We just had the Bavarian Mycology Conference in Au

10-10-2025 00:49

Ethan Crenson

Hello all, This was found last weekend on a hardw

06-10-2025 15:57

David Chapados David Chapados

Hi, Could anyone help me with this Lophiostoma? 

04-10-2025 02:13

Francois Guay Francois Guay

Hi everyone,   I found this Hymenoscyphus growi

03-10-2025 22:17

Francois Guay Francois Guay

Hi everyone,   I found this white, star-shaped

03-10-2025 22:03

Francois Guay Francois Guay

Hi everyone, I found this weird asco growing on wo

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Calycina sp.
Nicolas VAN VOOREN, 05-11-2013 18:20
Nicolas VAN VOORENHere is a Calycina (I mean) species that I cannot identify...
It was collected on a dead and decorticated trunk of Populus or Salix, there were thousands of specimens!
Apothecia small, Ø 0.2-0.8 mm, stipitate, totally white.
Ectal excipulum of t. ± prismatica (see picture), with some short hairs, up to 38 µm. Medullary excipulum of t. ± intricata, gelatinous in the stipe.
Asci 119-136 x 7.5-9 µm, 8-spored, with crozier, apical ring IKI+ (bb), type Calycina.
Paraphyses filiform, Ø 2-2.5 µm, without VB, but staining in blue in aqueous cresyl. 
Spores ± fusoid, ± curved, 15-19 (20) x 4-4.5 (5) µm, 2-celled (in and outside asci), OCI~4.

It seems to be close to C. subparilis.
Any idea?
  • message #25675
  • message #25675
Hans-Otto Baral, 05-11-2013 18:38
Hans-Otto Baral
Re : Calycina sp.
Are there not 4 large and 4 small spores? Calycina lactea?
Nicolas VAN VOOREN, 05-11-2013 19:12
Nicolas VAN VOOREN
Re : Calycina sp.
I just made a new mount, and you're right I saw some asci with 4 normal spores and 4 aborted spores!
Thanks.
Hans-Otto Baral, 05-11-2013 20:09
Hans-Otto Baral
Re : Calycina sp.
Yes, it is. The crowded aspect is typical. Also the growth in creeks close to running water, was it?

VBs are present but not very refractive. Earlier it was called Hymenoscyphus ellisii.

Zotto
Nicolas VAN VOOREN, 05-11-2013 20:43
Nicolas VAN VOOREN
Re : Calycina sp.
Yes, the habitat is a forest on a island on the Rhône, mainly composed by Salix and Populus (and some Quercus).
  • message #25684
Michel Hairaud, 05-11-2013 21:41
Michel Hairaud
Re : Calycina sp.
Bonjour Nico et Zotto, 

Amazingly I found it at the very same period last year , on November 7h. , in a Normandy marsh.
I called it Bisporella lactea as I was not yet awre of the new combination in Calicyna .

Here is an image of this collection spores.

Amitiés
Michel
  • message #25688
Hans-Otto Baral, 05-11-2013 21:47
Hans-Otto Baral
Re : Calycina sp.
Yes, Michel, nice Calycina spores. :-)  But not lactea :-(
What size? how many spores in the ascus? IKI blue or red? Apos reddening or not?

Michel Hairaud, 05-11-2013 21:49
Michel Hairaud
Re : Calycina sp.
Oups ! 
I realize that B. lactea was a preliminary name but the spores shown above look more like those of C. heterospora
Michel
Michel Hairaud, 05-11-2013 21:55
Michel Hairaud
Re : Calycina sp.
Zotto, I knew you would notice the error as  I was trying to give some explanation , but too late !
I will answer your questions when at home with my documentation of the collection.

Michel