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02-07-2020 07:56

Garcia Susana

Hola, Agradecería vuestra ayuda para la identifi

02-07-2020 13:33

Garcia Susana

Hola, He recogido estos apotecios que crecían en

02-07-2020 16:05

Thomas Læssøe

see: https://svampe.databasen.org/observations/10

02-07-2020 22:07

Castillo Joseba Castillo Joseba

me mandan el material seco, recolectada en Lantar

02-07-2020 21:45

Castillo Joseba Castillo Joseba

me mandan el material seco, recolectado en  tallo

02-07-2020 19:16

Angel Pintos Angel Pintos

Hello anybody has this article?The relationship be

02-07-2020 15:17

Thomas Læssøe

see https://svampe.databasen.org/observations/100

01-07-2020 18:05

Salvador Tello

Hola a todos.Estas Orbilias crecían sobre madera

29-06-2020 09:57

Mirek Gryc

Hi.Only one small sporocarps (max. 4 mm in diamete

01-07-2020 20:32

Juuso Äikäs

These were growing together with the Laevipilas t

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Mollisina flava?
Raúl Tena Lahoz, 20-11-2008 17:39
Raúl Tena LahozIt fits well with Raitviir´s description, except for the width of the paraphyses and because he says nothing about contents. Also asci seems to be longer. Spores hardly discharge. Upper right, finger-shaped projections. Middle right, ectal excipulum at base. On Populus sp. fallen leaves.
Thanks a lot!
  • message #5786
Raúl Tena Lahoz, 20-11-2008 17:39
Raúl Tena Lahoz
Re:Mollisina flava?
Micro.
  • message #5787
Stip Helleman, 20-11-2008 18:51
Stip Helleman
Re:Mollisina flava?
Hello Raúl,
Thanks for sharing this rare species, it seems to fit perfect also with Arendholz original description
but both give smaller paraphyses width. which is natural because you have living material with full cell turgor. have you tested the asci, should be Lug. red or MLZ- (MLZ + after KOH)
Can you show us also a picture from dead material? i am curious about the behavior of the VBs in the paraphyses on die-ing(in some Calycellina spec. they become persistent)
Stip
Hans-Otto Baral, 20-11-2008 22:48
Hans-Otto Baral
Re:Mollisina flava?
Hi Raúl
yes, raitviir neglected all these contents because he very rarely studied living specimens. I have seen this species 5 times, always on Populus leaves, and quite long ago. Surely the yellow VBs disappear when the apothecia are dried, or usually only yellow remnants of them can inconsistelnty be seen.

And yes, the minute apical ring should react red or blue at lower concentration, red at higher.

Zotto
Raúl Tena Lahoz, 26-11-2008 14:01
Raúl Tena Lahoz
Re:Mollisina flava?
Thanks Stip and Zotto, and sorry for the late response. I still do not have photos of dead material. I will try to make them next weekend. It was MLZ-.
Raúl.
Raúl Tena Lahoz, 29-11-2008 17:05
Raúl Tena Lahoz
Re:Mollisina flava?
Hi Stip. New photos of rehidrated material. As Zotto indicates yellow VBs have dissapeared in most of the paraphyses. They still remain only in a few. Apos dried ten days ago. Also turgor has gone. Apical ring red in IKI.
Raúl.
  • message #5868
Hans-Otto Baral, 29-11-2008 17:18
Hans-Otto Baral
Re:Mollisina flava?
The two yellow paraphyses look like being still alive. A certain xerotolerance for some days or weeks is well possible in this species. Are the apothecia dry or rewetted?

Zotto
Raúl Tena Lahoz, 29-11-2008 23:38
Raúl Tena Lahoz
Re:Mollisina flava?
Sorry, when I said "New photos of rehidrated material" I was refering to the micro photos. The macro below is of dry apothecia, aprox. 0, 12 mm.
Thanks Zotto,
Raúl.
Stip Helleman, 29-11-2008 23:41
Stip Helleman
Re:Mollisina flava?
Hi Raúl,
I was wandering if the Vbs in this species wer of the same chemical substance as some Calycellina species, but it appears not so, thanks for the fotos.

Stip
Hans-Otto Baral, 30-11-2008 12:47
Hans-Otto Baral
Re:Mollisina flava?
Hi Stip

why do you think that the VBs of Mollisina differ from Calycellina? I don't see any reason to believe so. There exist yellow and hyaline VBs in both genera, and whether or not there can remains of the Vbs be seen in some paraphyses of older herbarium material is more a matter of the drying process, the senescence of the apos during drying etc.

Zotto
Stip Helleman, 02-12-2008 21:38
Stip Helleman
Re:Mollisina flava?
Hoi Zotto,
I think also there is no generic difference between the VBs of Mollisina and Calycellina, but i observed the behavior of VBs in dieing Fruitbodies where they become persistant and this looks like a chemical reaction. So far i only observed it in Calycellina (sensu You) species.

Stip
Hans-Otto Baral, 02-12-2008 22:13
Hans-Otto Baral
Re:Mollisina flava?
Hoi Sip

o.k., that should be followed. This was the reason why Seppo wrote "yellow pigment" in his genus Phialina (= calycellina ss. meo). Otherwise he would not have been able to observe it.

But VBs are also partly persistent in Durella, I remember, and who knows where else.

Zotto