"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

Hans-Otto Baral, 23-10-2011 00:23

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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