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22-10-2011 22:33

Chris Yeates Chris Yeates

Bonsoir à tousThis was collected on dead stems of

21-10-2011 18:04

Gernot Friebes

Hi,I have a question about the name Caproniella Be

16-10-2011 03:52

Chris Yeates Chris Yeates

Collected on a dead attached rachis of Dryopteris

18-10-2011 07:41

Reza Shaian

This Gyromitra collected last week from Iranian No

17-10-2011 09:10

Peter Welt Peter Welt

Dennis,R.W.G. (1974) – New or interesting Britis

13-10-2011 09:44

Björn Wergen Björn Wergen

Hello again,this finding seems to be an inopercula

09-10-2011 23:29

Stip Helleman Stip Helleman

Bonjour à tous,Has anyone heard or know about a A

14-10-2011 12:47

PASCAL DUBOC

Bonjourje cherche à identifier ces petites péziz

10-10-2011 16:45

Jacques Fournier Jacques Fournier

Bonjour,j'ai été attiré par ce disco qui sur le

04-10-2011 13:16

Yannick Mourgues Yannick Mourgues

Bonjour à tous.Avez-vous connaissances d'autres a

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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

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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
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