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05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

07-03-2026 13:06

éric ROMERO éric ROMERO

Bonjour tous, Sur cône d'épicea fortement imbu,

23-12-2025 08:27

Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

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Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

07-03-2026 22:22

Josep Torres Josep Torres

Hello.Some very tiny conidiomes collected in the D

06-03-2026 17:51

William Slosse William Slosse

Good evening all,On March 4, 2026, I found the fol

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François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

06-03-2026 09:41

Alain GARDIENNET Alain GARDIENNET

Hi forum, I'm now looking for another reference c

05-03-2026 19:29

William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

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Calycellina (?) on Acer sp. bark
Enrique Rubio, 09-06-2009 13:33
Enrique RubioDear friends:
I'd lke to know your opinion about this small (up to 0.3-0.4 mm), gregarious, withish, later clearly yellow turbinate ascomata that grows on Acer sp. bark.
I think could be a Calycellina species
  • message #8134
Enrique Rubio, 09-06-2009 13:35
Enrique Rubio
Re:Calycellina (?) on Acer sp. bark
The hymenium shows abundant yellow pigment
  • message #8135
Enrique Rubio, 09-06-2009 13:36
Enrique Rubio
Re:Calycellina (?) on Acer sp. bark
Spores(0)- 1 septate even inside the asci
  • message #8136
Enrique Rubio, 09-06-2009 13:37
Enrique Rubio
Re:Calycellina (?) on Acer sp. bark
Asci 8-spored, IKI bb, with croziers
  • message #8137
Enrique Rubio, 09-06-2009 13:38
Enrique Rubio
Re:Calycellina (?) on Acer sp. bark
Paraphyses densely ramified, without clearly Vb's
  • message #8138
Enrique Rubio, 09-06-2009 13:39
Enrique Rubio
Re:Calycellina (?) on Acer sp. bark
Ectal excipulum angularis to prismatica
  • message #8139
Enrique Rubio, 09-06-2009 13:39
Enrique Rubio
Re:Calycellina (?) on Acer sp. bark
Margin
  • message #8140
Enrique Rubio, 09-06-2009 13:40
Enrique Rubio
Re:Calycellina (?) on Acer sp. bark
Many thanks for your help
Enrique
Enrique Rubio, 09-06-2009 13:41
Enrique Rubio
Re:Calycellina (?) on Acer sp. bark
I have seen any textura oblita as Bisporella species
Hans-Otto Baral, 09-06-2009 19:41
Hans-Otto Baral
Re:Calycellina (?) on Acer sp. bark
Hi Enrique

I remembered a collection I made in "Mellasco" 2008 in Forêt de Chizé, Les Essarts, on Acer bark (!). I think this fits 100%. The only problem: I have no name for it. I also wrote "?Calycellina", but as there are no VBs at all, it cannot be a Calycellina. Here my data:

Acer campestre, ca. 4 cm thick hanging (broken) branch, ca. 2 m above ground, inner face of bark, very rotten. Ap. 0.25-0.7 mm diam, first olivaceous-greyish, then yellowish-cream to light lemon-yellow. Asci *63-76 x 11-11.5 µm, IKI 2bb broad ring (Calycellina-like), with croziers. Sp. *11-13 x 3.7-4.3 µm, 1-septate within living asci.
  • message #8149
Hans-Otto Baral, 09-06-2009 19:42
Hans-Otto Baral
Re:Calycellina (?) on Acer sp. bark
The excipulum is totally thin-walled.
  • message #8150
Hans-Otto Baral, 09-06-2009 19:43
Hans-Otto Baral
Re:Calycellina (?) on Acer sp. bark
Spores actually 1-septate within the turgescent asci, but septa not easy to see
  • message #8151
Hans-Otto Baral, 09-06-2009 19:44
Hans-Otto Baral
Re:Calycellina (?) on Acer sp. bark
Here better

Zotto
  • message #8152
Enrique Rubio, 09-06-2009 20:12
Enrique Rubio
Re:Calycellina (?) on Acer sp. bark
Hi Zotto:
Many thanks for your opinion
I will preserve it in the box of the mysteries