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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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Olla
Zuzana Sochorová (Egertová), 12-06-2016 19:51
Zuzana Sochorová (Egertová)Hello,
I think this is Olla millepunctata, but I would like to know an opinion of somebody more experienced.
Fruitbodies measure up to 0.5 mm, grew in a numerous group on a decorticated twig of Salix or Populus. Found yesterday in Moravia (the Czech Republic), in a wet place near a pond, 185 m asl.
Spores +- ellipsoid, somewhat asymmetrical, hyaline, smooth, with few very little droplets, 6.5-8.5 x 1.7-2 micrometers.
Asci 42.5-58 x 5-6 micrometers, IKI + (blue without KOH pretreatment), octosporic, cylindrical, biseriate, without croziers.
Paraphyses straight, septate, 1-1.5 micrometers broad.
Hairs hyaline, 22-37 x 2.5-4 micrometers, the part with hyaline content 13-28 micrometers long.
Excipulum - textura prismatica, cells 10-27 x 7-9 micrometers.
I hope Olla scrupulosa is a synonym of O. millepunctata.
Thanks in advance,
Zuzana
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Pavol Palo, 12-06-2016 20:29
Re : Olla
Pilze der Schwaiz: "Spitze stumpf, mit Jod bisweilen purpurfleh verfärbend"
Hans-Otto Baral, 12-06-2016 20:38
Hans-Otto Baral
Re : Olla
I prefer to use scrupulosa for samples on wood because of wider spores (*1.7-2.5 vs. *1.5-2), but the limits are questionable and the aggregate rather variable. Nobody sequenced these fungi so far except for one N-American sequence.
Zuzana Sochorová (Egertová), 12-06-2016 21:08
Zuzana Sochorová (Egertová)
Re : Olla
Palo, thank you for remark. However, I cannot see the change of color neither in Lugol nor in Baralsche Loesung in my collection.
Zotto, thanks a lot.
Hans-Otto Baral, 12-06-2016 21:28
Hans-Otto Baral
Re : Olla
It is not the hair tip but the entire hair that stains purplish-brown in IKI or MLZ. Here a photo.
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Zuzana Sochorová (Egertová), 15-06-2016 12:49
Zuzana Sochorová (Egertová)
Re : Olla
Hmm, I tried it once more, but my fungus apparently doesn´t work.