Accès membres

Mot de passe perdu? S'inscrire

22-12-2024 21:42

Bometon Javier Bometon Javier

Habitat en el suelo, con presencia de Calluna mult

22-12-2024 10:19

Simon Gurtner Simon Gurtner

Hello,can anyone help me identify this small ascom

21-12-2024 12:45

Marc Detollenaere Marc Detollenaere

Dear Forum,On naked wood of Fagus, I found some ha

22-12-2024 10:53

Bernard CLESSE Bernard CLESSE

Pourriez-vous me confirmer ma détermination de ce

20-12-2024 17:32

Louis DENY

Bonsoir forumTrouvé à Belfort, 400 m altitude, s

22-12-2024 10:40

Castillo Joseba Castillo Joseba

me mandan elmaterial seco de Galicia,  recolectad

21-12-2024 11:14

Michel RIMBAUD

Hello,Does somebody could send me a key for Olla/U

17-02-2013 08:38

Alain GARDIENNET Alain GARDIENNET

Bonjour, J'ai trouvé ces acervules sur feuille d

21-12-2024 09:08

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,  recolecta

17-12-2024 12:33

Lothar Krieglsteiner Lothar Krieglsteiner

this fluffy anamorph was repeatedly found on decid

« < 1 2 3 4 5 > »
Calloria (?) on Galium aparine
Chris Yeates, 22-10-2011 22:33
Chris YeatesBonsoir à tous

This was collected on dead stems of Galium aparine. Apothecia without obvious margin, sessile, orange-pink. R.W.G. Dennis described a Calloria galiorum and I suspected I might have found that - the description (published in Kew Bulletin 45 (2)page 293) is repeated here but appears to refer to a different fungus:

"Calloria  galiorum  Dennis  spec.  nov.  Apotheceis  sparsis, superficialibus,  sessilis,  concavis,  350 pm  latis,  roseis;  ascis subsessilis,  33-42  x  6-6.5  pm,  octosporis,  I  + ;  ascosporis continuis,  hyalinis,  7-9  x  1.5-2.5 pm;  paraphysibus filiformibus. In caulibus siccis Galii aparines.  Skye, . . . . . In C. galii  (Fuck.) Sacc. v. Höhnel  (1918)  found  larger  iodine negative  asci  50-55  pm  long."


this seemed to be close to this fungus; however the asci measure 50-59 x 7.2-7.9µm, and the ascospores measure 14.3-14.8 x 4-4.3µm (those shown are living, in water); the ascus measurements are closer to Calloria galii but that is described as with "sporidiis, oblongo-ovatis, didymis, medio vix constrictis . . . 14-7" (Saccardo, P.A. Sylloge Fungorum VIII: p. 640); so that does not fit either . . .


I cannot believe that others have not come across this discomycete on a very common host. Does anyone know of something like this please?


Chris

  • message #16483
  • message #16483
  • message #16483
Hans-Otto Baral, 23-10-2011 00:23
Hans-Otto Baral
Re : Calloria (?) on Galium aparine
Hi Chris

this is a hard nut. I am not sure whether this is a host-specific fungus. What I have in mind is the little-known genus Aivenia. At least it should be somthing of the Naevioideae.

I wonder whether you have any living asci and paraphyses there, especially the contents of the latter wouöld help me much.

Stip Helleman made a fine drawing of something similar, but on Glyceria. here attached. Apothecia were white.

Zotto
  • message #16484