Accès membres

Mot de passe perdu? S'inscrire

10-11-2021 17:33

Riet van Oosten Riet van Oosten

Add-on topic http://www.ascofrance.com/forum/7059

07-01-2026 10:24

Danny Newman Danny Newman

Pezicula sp. on indet. hardwood Appalachian Highl

07-01-2026 10:05

Danny Newman Danny Newman

cf. Chaetospermum on XylariaCosby Campground, Grea

06-01-2026 20:54

Thierry Blondelle Thierry Blondelle

Bonjour à tous et meilleurs voeux pour cette nouv

02-01-2026 17:43

MARICEL PATINO

Hi there, although I couldn't see the fruitbody, I

04-01-2026 17:45

Stephen Martin Mifsud Stephen Martin Mifsud

I was happy to find these orange asmocyetes which

02-01-2026 22:48

éric ROMERO éric ROMERO

Bonjour tous, Je profite de cette nouvelle demand

02-01-2026 19:35

William Slosse William Slosse

Good evening everyone,First of all, my best wishes

03-01-2026 13:08

Niek Schrier

Hi all,We found groups of perithecia on a Lecanora

03-01-2026 15:36

éric ROMERO éric ROMERO

Bonjour, Pouvez-vous me dire quel est le nom à p

« < 1 2 3 4 5 > »
Crocicreas cyathoideum?
Anna Klos, 18-05-2024 10:47
Goodmorning,

We found this tiny ascomycete (max. 1mm) on a stem (of grass?).
Is this Crocicreas cyathoideum?
I'm not sure because of the length of the spores, they easily reach to 14 mu.

With kind regards,

Anna
  • message #79293
  • message #79293
  • message #79293
  • message #79293
  • message #79293
Hans-Otto Baral, 18-05-2024 11:21
Hans-Otto Baral
Re : Crocicreas cyathoideum?
Oh, this looks interesting. A few days before we had it here: Cyathicula paludosa. 


The row of large guttules in the spores are typical. Crocicreas is from its type something else, so Cyathicula is used for C. cyathoideum etc.

I fear you have not observed whether the asci arise from croziers or not, because there exist two variants in C. paludosa.
Riet van Oosten, 18-05-2024 13:30
Riet van Oosten
Re : Crocicreas cyathoideum?
Anna Klos, 18-05-2024 15:25
Re : Crocicreas cyathoideum? => no Cyathicula paludosa
Thank you Hans-Otto and Riet!

I know that names have changed, however in our (Dutch) database (the Verspreidingsaltas), they still use the old names. They will be changed, when I don't know.

I'm terrrible with croziers, however I tried to make some pictures for you, Otto.
Not easy, you did say the species is tough.
Don't know if this are croziers, hopefully you can tell me.

With kind regards,

Anna
  • message #79297
  • message #79297
  • message #79297
  • message #79297
Hans-Otto Baral, 18-05-2024 16:53
Hans-Otto Baral
Re : Crocicreas cyathoideum?
Yes, it is without croziers, obviously (from your 2nd pic).

Since I will soon study the type and want to clarify the ascus base there, I would be happy if you could send me collection data, best with WGS84 coordinates.

Not sure but monocot stems usually look a bit different from dicots. The fragment has no nodium?
Anna Klos, 18-05-2024 17:45
Re : Crocicreas cyathoideum?


The coordinates are : 52° 6? NB, 5° 11? OL
dd: 17-05-2024

I did get the specimen from somebody else, she could not tell me where it was on. 


  • message #79300
Hans-Otto Baral, 18-05-2024 21:08
Hans-Otto Baral
Re : Crocicreas cyathoideum?
The coordinates need at least 3 digits after the comma. Otherwise it is +/- 1 km.

The collector name I should know to correctly address the find.
Anna Klos, 19-05-2024 10:59
Re : Crocicreas cyathoideum?
GPS 52.0896, 5.1893
RDS 141438 455719

I was a guest, so I don't know the names of the other persons who where there.
Because I was willing to do the microscopy, they gave the specimens to me. 


Hans-Otto Baral, 19-05-2024 11:13
Hans-Otto Baral
Re : Crocicreas cyathoideum?
Thanks! This will be 1 km ENE of Utrecht Science Park, 4 m alt.
Anna Klos, 19-05-2024 18:52
Re : Crocicreas cyathoideum?
Yes, that's right and you're welcome!

With kind regards,

Anna