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25-02-2020 14:33

Mirek Gryc

HiSeveral creamy sporocarps quite small. Maximum d

25-02-2020 20:07

Thorben Hülsewig

Hi there, i found this asco on heracleum giganteu

25-02-2020 21:42

Josep Torres Josep Torres

Hola.Ejemplares fotografiados el pasado domingo br

26-02-2020 12:46

Enrique Rubio Enrique Rubio

Hi to everybodyMinute superficial setose roundish

26-02-2020 10:46

Castillo Joseba Castillo Joseba

me envian material seco de esta especimen recolect

25-02-2020 16:24

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Febr. 2020

23-02-2020 11:15

William Slosse William Slosse

Hello Forum, on 14/02/20 I again collected a coll

25-02-2020 13:36

Peter Püwert Peter Püwert

Hi all,for Germany I find no proof, but my determi

24-02-2020 20:05

Mirek Gryc

HiUnfortunately, but my knowledge is too scanty ab

24-02-2020 18:15

Sven Heinz Sven Heinz

Hello, this fungus grows on roe deer dung. Some i

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Hyaloscyphaceae(?) on wood
Juuso Äikäs, 18-01-2020 08:13
These were growing on the underside of a piece of wood in a Picea abies dominated forest. The spores measure 6-7 x 3 microns, asci about 50-60 x 6-7. Both macro- and microscopically these seem fairly anonymous so I wonder if anything can be said.
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Hans-Otto Baral, 18-01-2020 08:21
Hans-Otto Baral
Re : Hyaloscyphaceae(?) on wood
Seems really anonymous... The hairs are only 2 µm wide as it seems. Doesn't look like a typical Cistella.
Michel Hairaud, 18-01-2020 08:42
Michel Hairaud
Re : Hyaloscyphaceae(?) on wood

Hi Juuso, and Zotto


Seems to belong in Ciliolarina ? (difficult to give a species name, though)


Amitiés. Michel

Kosonen Timo, 18-01-2020 09:48
Kosonen Timo
Re : Hyaloscyphaceae(?) on wood
Hei Juuso,

Keep it in the fridge. I could take a closer look. Is it possible to deliver it fresh to Turku? I am back at the office next Wednesday.

No good suggestions. No match in Hyaloscypha what I can think of. ...well, yes, doesn't really fit Cistella, Psilocistella.. Seppo recently collected something that we thought is Psilocistella obsoleta, but it turned out to be aff Ciliolarina phylogenetically. And with smooth hairs!. It did not have slender hairs like here, so not suggesting this is it. Just saying that someone should take a better a look to Ciliolarina as well :-).

In every case, make careful annotations in the usual reagents (Cotton blue, MLZ, Lugol, water). Always let it "incubate" for a while. Some inclusions might stain. Also important if nothing observed!

bw
Timo
Juuso Äikäs, 18-01-2020 17:17
Re : Hyaloscyphaceae(?) on wood
Thank you for the answers. Timo, I sent an email to you.
Kosonen Timo, 23-01-2020 09:28
Kosonen Timo
Re : Hyaloscyphaceae(?) on wood
Hello,

I just studied the sample. It's Ciliolarina.

Apothecia are usually shortly stipitate and the hairs have loosely attached granules/crystals. They are easily blown away even in water mounts just by applying too much pressure. In MLZ/KOH you don't see them at all. The small spore size suggests either neglecta or laetifica. Raitviir (and Huhtinen) give measures of dead spores. Measured in MLZ the spores here are still clearly above 2 um wide (2.5-3.0). ---> C. laetifica. Although, the stipe has some dark pigment suggesting C. neglecta. I have seqs of very small spored samples ("obvious neglecta"). So it will be interesting to compare.

A lovely and plentiful collection!

bw

Timo
Kosonen Timo, 23-01-2020 10:38
Kosonen Timo
Re : Hyaloscyphaceae(?) on wood
One additional comment.

The vast majority of the hairs are apically fairly short-celled (c. 20-30 um long), and thus fit Ciliolarina. Juuso had found some very peculiar aseptate(?) hairs. The paraphyses are usually smooth, so I don't have a definite explanation. ...the majority rules :-)

Timo
Hans-Otto Baral, 23-01-2020 12:22
Hans-Otto Baral
Re : Hyaloscyphaceae(?) on wood
I agree with C. laetifica. The ascus reaction was supposedly tested in MLZ?

In a collection by Lothar Krieglsteiner (29.XII.2016) the ring reacted dirty red (rb) in Lugol.

A nice feature of this and some other Ciliolarinas is that the surface of free spores stans lilac in CRB (aqueous).

Zotto
Kosonen Timo, 23-01-2020 14:11
Kosonen Timo
Re : Hyaloscyphaceae(?) on wood
yep, ascus apex MLZ negative and red-brown in Lugol. The CRB & Ciliolarina spores I was not aware of.

Timo