Accès membres

Mot de passe perdu? S'inscrire

10-04-2021 13:56

jean claude chasle

Bonjour,Récolté en bordure de mare sur carex :Ap

10-04-2021 20:12

Andgelo Mombert Andgelo Mombert

Bonsoir, Un magnifique Nectria s.s. (?) sur branc

10-04-2021 20:07

Sergey Markov

I found today small black pycnidia in the cuticle

10-04-2021 16:53

William Slosse William Slosse

Hello everyone,recently I found a large growing pl

09-04-2021 07:57

Josep Torres Josep Torres

Hola.Unas diminutas fructificaciones fotografiadas

10-04-2021 09:03


Bonjour à toutes et tous,Que pensez-vous de cette

08-04-2021 21:17

Pauline. Penna

Hello EveryonePlease could you help me with this s

10-04-2021 09:24

Mirek Gryc

Hi.About a month ago I downloaded a piece of wood

09-04-2021 18:44

Mirek Gryc

Hi.Probably anamorph but I have never seen so big

09-04-2021 14:01

Laurent LENEL Laurent LENEL

Bonjour à tous, voici une helvelle trouvé en Pro

« < 1 2 3 4 5 > »
Unknown white asco 03.03.21
Thorben Hülsewig, 07-03-2021 11:14
Hi there,

i need you help with this white asco that i found on a lying branch in a creek.
The spores are mature 1-2 septated, IKi+ and the asci have no croziers.
Any idea what this could be ?

best regards,
  • message #67780
  • message #67780
  • message #67780
  • message #67780
  • message #67780
  • message #67780
  • message #67780
Hans-Otto Baral, 07-03-2021 11:33
Hans-Otto Baral
Re : Unknown white asco 03.03.21
The state of this fungus seems not good anymore, badly developed. Icould imagine Olla transiens, but am not at all sure as I see no glassy caps.
Thorben Hülsewig, 08-03-2021 20:02
Re : Unknown white asco 03.03.21
Hallo Zotto, 

ich lege den Pilz mal vorsichtig als cf. Olla transiens ab.
Wobei ich keine spitzen Haare finden konnte.

VG : Thorben
Kosonen Timo, 10-03-2021 11:32
Kosonen Timo
Re : Unknown white asco 03.03.21
Hello Thorben,

Did you already dry the material? Det. Olla cf. transiens is something I agree on. There's some variation in and around O. transiens. Bernard Clesse delivered me some years ago Olla cf. transiens with hairs with very little or no glassiness at all. It was (DNA) O. transiens, but deviated from the "standard" O. transiens. ...I like this true Hyaloscyphoids a lot. Any change of making a culture / mailing the material?


Matthias Reul, 13-03-2021 18:42
Matthias Reul
Re : Unknown white asco 03.03.21

recently I was sent a similar fungus found by Torsten Richter, it looks like Olla transiens, but clearly has croziers, hovever it also has a few glassy caps (see attached PDF, first two pictures by Torsten). I found about 6 clearly recognizable glassy caps in three apothecia, the largest one is about 4 µm long.
So with croziers this should then be called Psilocistella variepilosa/quercina as shown in Zottos folder if I got it right.
And am I right with the assumption that when having a collection of O. transiens with almost no or no glassy caps at all, the croziers would be the only difference between O. transiens and the Psilocistella?
And further Psilocistella variepilosa/quercina seems then to be able to produce at least a few glassy caps as well. 


Hans-Otto Baral, 13-03-2021 22:01
Hans-Otto Baral
Re : Unknown white asco 03.03.21
Yes, Psilocistella quercina is also my guess, except that hairs with glassy caps I never saw there. Could it be a mixture of both species? Or aree the hairs from one and the same apo?
Thorben Hülsewig, 13-03-2021 23:43
Re : Unknown white asco 03.03.21
Hi Timo,

That is very interesting that there is a variation of the O. transiens.
A culture is not available and have no way to do it, but I can send you the dried material.

best regards,
Matthias Reul, 14-03-2021 10:23
Matthias Reul
Re : Unknown white asco 03.03.21
Hi Zotto,

not all pictures are from the same apothecium, but the apothecia surely had everything at once: rarely hairs with those glassy caps, mostly hairs without them as well as croziers. I examined three apothecia and in two of them I found the glassy caps that are shown in the images, but they are very rare though.
Torsten also examined some apothecia and he did not see any glassy caps.

Hans-Otto Baral, 14-03-2021 11:52
Hans-Otto Baral
Re : Unknown white asco 03.03.21
Note there is an article:

Quijada et al. 2014 Psilocistella quercina AscomyceteOrg 06-05 143-146