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23-09-2025 13:31

Thomas Læssøe

https://svampe.databasen.org/observations/10534623

15-10-2025 16:39

Edvin Johannesen Edvin Johannesen

These tiny (0.2-0.6 mm), white, pulvinate apotheci

03-10-2025 13:44

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

13-10-2025 19:05

Louis DENY

Bonjour forumSur tronc décortiqué de feuillu x,

17-02-2013 21:11

Peter Welt Peter Welt

Jamoni, P.G. 1998. Un nuovo discomicete coprofilo

11-10-2025 20:27

Marcel Heyligen Marcel Heyligen

Found on a barked branch, 14 mm in diameter, of Ro

11-10-2025 14:20

Jean-Luc Ranger

bonjour à tous, Je ne vois pas comment l'on peut

09-10-2025 22:14

S. Rebecca

We just had the Bavarian Mycology Conference in Au

10-10-2025 00:49

Ethan Crenson

Hello all, This was found last weekend on a hardw

06-10-2025 15:57

David Chapados David Chapados

Hi, Could anyone help me with this Lophiostoma? 

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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