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14-09-2025 22:16

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

13-09-2025 15:43

Edmond POINTE Edmond POINTE

Bonjour Christian,J'ai trouvé deux spores ressemb

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

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Bisporella citrina?
Yatsiuk Iryna, 08-11-2011 16:08
Yatsiuk Iryna

Hello, forum!


There is Bisporella collected on Populus tremula. 


Micro: 


In statu vivo:spores ellipsoid, 14,9-19,3-3,6-5,5 um, with 2-3 large and many small guttules.


Paraphyses guttulate (photo is of low quality and I can attach the drawing if needed)


Asci with croziers, 8-spored, blued in IKI (see photo)


Is it B. citrina? If it is so, why paraphyses are guttulate?


Sincerely, Irina

  • message #16638
  • message #16638
  • message #16638
  • message #16638
Hans-Otto Baral, 08-11-2011 16:35
Hans-Otto Baral
Re : Bisporella citrina?
Hi Irina

the paraphysis is strange, it should contain a homogeneous content in the upper part. Otherwise I also think B. citrina. A section is always good, excipulum should be gelatinized and the hyphae with a almost vertical orientation.

Zotto
Neven Matocec, 08-11-2011 17:01
Neven Matocec
Re : Bisporella citrina?
Hello!

Yes, but be careful, maybe you ovelooked very elongated (with homogenous content) vacuolar bodies in apical cells (the microphoto is very blur) because sometimes they can be of +/- whole cell length. Considering small "guttules" they could be isolated/concentrated yellow carotenoid pigment - the situation I observed in some other ascomycetes with carotenoid pigments where pigment can be separated from VB's and/or LB's. In such cases VB's and LB's are often highly refractive and hyaline or nearly so while pigment are decidedly yellow to orange to red and low refractive if at all...

At least asci are clearly of Calycina type :-) !!

Cheers,
Neven
Yatsiuk Iryna, 09-11-2011 18:16
Yatsiuk Iryna
Re : Bisporella citrina?

Thank you, Zotto and Neven!


Really, in the upper part paraphyses were not-guttulate (probably, gelatinous, but I cannot say it exactly). In the lower part paraphyses contained many small rounded guttules (it's not seen from photo but I saw them very clearly). 


Sincerely,


Irina