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04-07-2022 15:21

Jason Karakehian Jason Karakehian

Hi everyone, I am looking for a specimen of Propo

03-07-2022 13:13

ruiz Jose antonio

Hola a todos,en resto de herbáceas,en zona muy h

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Castillo Joseba Castillo Joseba

recolectado en tierra en bosque de abetosEs una ma

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Josep Torres Josep Torres

Hola.Un pequeño discomiceto sobre la superficie d

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Hello everyone.I would like to consult with you re

28-06-2022 20:12

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I repeatedly collect a foliicolous Ascobolus

01-07-2022 15:28

Thomas Læssøe

https://svampe.databasen.org/observations/10267081

01-07-2022 15:18

Thomas Læssøe

https://svampe.databasen.org/observations/10278120

29-06-2022 08:43

Mirek Gryc

Hello everyone Because the mushroom seems to be v

29-06-2022 13:19

Andrew N. Miller Andrew N. Miller

Does anyone have this as a PDF?Munk A (1965). On s

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Yellow inoperculate on Frullania dilatata
Edvin Johannesen, 12-05-2022 17:27
Edvin JohannesenApothecia 0.2-0.5 mm in diam., slightly downy excipular surface. Asci ca. 45-60 x 6-7 microns, ascus tip IKI+ (blue) in Lugol, often curved, 8-spored and bi-seriate (as far as I can see- not many ripe asci). Released spores ellipsoid with somewhat pointed apices, multiguttulate (in KOH), aseptate, hyaline, ca 11-14 x 3 microns (all measures in KOH). Paraphyses numerous, filiform, 1-1.5 microns broad.

I have sacrificed only one medium-sized apothecium, so no in-depth study. My impression is that there are not so many yellow inoperculates on Frullania.  Suggestions appreciated.

Thanks.
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Hans-Otto Baral, 12-05-2022 18:08
Hans-Otto Baral
Re : Yellow inoperculate on Frullania dilatata
As the spores are multiguttulate, Bryoscyphus turbinatus is excluded. So far I have no other idea. A pity that the elements are not alive, e.g. the paraphyses.
Lothar Krieglsteiner, 12-05-2022 19:07
Lothar Krieglsteiner
Re : Yellow inoperculate on Frullania dilatata
unfortunately one cannot see much on the micro-pictures. But macroscopically it reminds me a bit of "Luteodiscus" or however these fungi will be called. The spores are perhaps too large for this, but as I said before: one cannot see much ...
Yours, Lothar
Hans-Otto Baral, 12-05-2022 20:38
Hans-Otto Baral
Re : Yellow inoperculate on Frullania dilatata
Good idea, Lothar! That should not be too difficult to check. A minute drop of 0.5-5% KOH on an apo should produce a pink colour when it is Luteodiscus.
Edvin Johannesen, 12-05-2022 22:57
Edvin Johannesen
Re : Yellow inoperculate on Frullania dilatata
Thanks, guys. I have sacrificed one more and I think it is fair to say that it turned pink with a drop of KOH.
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Edvin Johannesen, 12-05-2022 23:03
Edvin Johannesen
Re : Yellow inoperculate on Frullania dilatata
I tried to take better photos of spores (in asci). Hope it helps a bit. This is the KOH treated apo microscoped in a drop of water after rinsing. Scale in these photos are 2.5 microns between lines. It fits quite well what you have called Luteodiscus pleurozii. It seems this is still a provisional name.
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Lothar Krieglsteiner, 13-05-2022 09:09
Lothar Krieglsteiner
Re : Yellow inoperculate on Frullania dilatata
yes, Luteodiscus as well is a provisional name, too.
Hans-Otto Baral, 13-05-2022 12:16
Hans-Otto Baral
Re : Yellow inoperculate on Frullania dilatata
Hi Edvin

what did you do with your dirty microscope? Splendid photos! I can only agree with Luteodiscus bryophilus, as we cal it at the moment. My folders represent totally only 2 species so far, one with IKI blue and one with IKI red asci.

Now I would be glad if you send me collection data. We have numerous collections in the list and map but yours would add to the puzzle.

Zotto
Edvin Johannesen, 13-05-2022 12:42
Edvin Johannesen
Re : Yellow inoperculate on Frullania dilatata
Ha ha! You are right that the microscope may need a cleanup, but I guess the improvement is largely bacause I had some more time :-)

I will send you the collection data per email.

Thanks again to both of you.