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09-06-2009 13:33

Enrique Rubio Enrique Rubio

Dear friends: I'd lke to know your opinion about

09-06-2009 13:17

Enrique Rubio Enrique Rubio

Dear friends: This Mollisia (?) species grows on

09-06-2009 11:43

NC NC

Bonjour à tous, Il y a 10 ans environ je considÃ

08-06-2009 10:50

Alain BRISSARD

Bonjour à tous Ayant un mal fou à discriminer l

07-06-2009 15:48

Perz Piotr

Hi, I found a tiny Coleomycet on leaves of Pier

06-06-2009 10:14

Alain GARDIENNET Alain GARDIENNET

Bonjour, Quelqu'un aurait-il la description de c

05-06-2009 22:24

Yannick Mourgues Yannick Mourgues

Bonsoir. Je cherche une clé des Cudoniella. I'

04-06-2009 16:48

Guy Marson

In Salix thickets like this one: http://www.giga

04-06-2009 14:19

Gernot Friebes

Hello, I try my luck again with this ascomycet.

03-06-2009 19:54

roman vargas alberto

Bonjour. Ces spécimens collectés sur la terr

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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.