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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

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

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

08-09-2025 19:07

ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

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Little asco accompanying Cal. citrina
Zuzana Sochorová (Egertová), 15-09-2022 06:57
Zuzana Sochorová (Egertová)Hello,
please, what could be this little asco accompanying Calycina citrina on a fallen branch of Salix? Moravia, 250 m a.s.l.
Apothecia max. 0.25 mm, convex, hyaline, sessile.
Asci 30- 33(40) × 6.5-7.6 µm, with croziers, IKI bb, many of them with a Psilachnum-guttule
Ascospores (7.3)7.8-9.9(10.2) × 2.1-2.6 µm, Q = (3)3.4-4.4(4.7). Me = 9.1 × 2.3 µm; Qe = 3.9, OCl = 0-0.5
Thank you, Zuzana
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Zuzana Sochorová (Egertová), 15-09-2022 06:58
Zuzana Sochorová (Egertová)
Re : Little asco accompanying Cal. citrina
more photos
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Lothar Krieglsteiner, 15-09-2022 08:02
Lothar Krieglsteiner
Re : Little asco accompanying Cal. citrina
Hello Zuzana,
I do not know the species (nor the genus), but what I find notable is the presence of a "Psilachnum drop" in the asci. Surely Zotto will say more.
Yours, Lothar
Michel Hairaud, 15-09-2022 08:57
Michel Hairaud
Re : Little asco accompanying Cal. citrina
Hi Suzana, 
Indeed, the ascus guttule and spore shape could match a Psilachnum 
Could you show paraphyses ? are they lanceolate,  with VBs ? 

Amitiés
Michel
Zuzana Sochorová (Egertová), 15-09-2022 09:28
Zuzana Sochorová (Egertová)
Re : Little asco accompanying Cal. citrina
Hi Lothar and Michel,

thank you for your comments.

The guttule also attracted my attention, but wood is a strange substrate for this genus, isn´t it? I was searching also in related genera, but found nothing which would fit well.

I will add photos of paraphyses in the evening or tomorrow (I am at work).

Zuzana
Hans-Otto Baral, 15-09-2022 10:03
Hans-Otto Baral
Re : Little asco accompanying Cal. citrina
Spore shape would also match a Psilachnum actually. But there are no hairs, are there? Wood is not impossible for the genus, long ago I made collections on coniferous wood, but they had hairy apos. The contents of the paraphyses would be interesting indeed.
Zuzana Sochorová (Egertová), 16-09-2022 20:09
Zuzana Sochorová (Egertová)
Re : Little asco accompanying Cal. citrina
Here are two (not very nice) photos of paraphyses. They are hyaline, straight, without VBs, having a rounded apex, apex is 2.2-2.7 micrometers broad.
 And one biguttule ascus as a bonus :-)
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Hans-Otto Baral, 16-09-2022 20:38
Hans-Otto Baral
Re : Little asco accompanying Cal. citrina
On a grass I would have suggested "Helotium" microspis, a difficult complex which is in my Calycellina folder.
Zuzana Sochorová (Egertová), 16-09-2022 21:01
Zuzana Sochorová (Egertová)
Re : Little asco accompanying Cal. citrina
Thank you Zotto, it really looks similar.