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21-01-2020 21:24

Sven Heinz Sven Heinz

Hello, what kind of mushroom is this? It grows on

20-01-2020 18:55

Andgelo Mombert

Bonsoir, Un petit discomycète vert noirâtre mes

20-01-2020 18:35

Enrique Rubio Enrique Rubio

Could someone please give me a copy of the followi

20-01-2020 18:50

Stefan Blaser

Hello everybody, Any help on this collection is v

20-01-2020 21:52

Bometon Javier Bometon Javier

Hola a todos/asApotecios de 0,3 a 0,7 cmEsporas el

20-01-2020 18:19

Valencia Lopez Francisco Javier

Hola a todos/asTengo estas Pseudombrophila sp, rec

20-01-2020 14:52

Josep Torres Josep Torres

Hola.Unas imágenes del 21 de Mayo de 2018, de un

20-01-2020 07:30

Django Grootmyers Django Grootmyers

Growing on a dead, shrivelled portion of a Phlebia

15-01-2020 00:11

William Slosse William Slosse

Hallo Forum,I recently found a curious ascomycetes

19-01-2020 20:16

Robin Isaksson

Spores multiguttulate,one cell and 22-26x 4,5-6 u

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Another fungus on Tilia wood
Enrique Rubio, 01-01-2013 18:10
Enrique RubioHello again and happy new year for all

Together with the ascomata of Psilocistella/Psilachnum species on Tilia wood that turns reddish with ammonia vapour (see the macrophoto) they were another witish cupulate ascomata with big 8-spored  asci IKI (-) negative and croziers (+) positive. IKI  with KOH pret. is negative (-) too.

The marginal hairs are very agglutinated and very difficult to segregate. Initially they seem to be smooth but the end cell is very finelly verrucose in KOH. For it, my impression is that this fungus could be a Cistella species that I don't know.
What do you think?

Many thanks again
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Hans-Otto Baral, 01-01-2013 18:30
Hans-Otto Baral
Re : Another fungus on Tilia wood
I once had a Cistella on Tilia bark of an attached branch, together with a strange and new Orbilia (O. jurana) on the calcareous Schwäbische Alb. It has also inamyloid asci but spores much smaller (7-12 x 2-2.8), so I identified it as Cistella cf. mali. Yours has too large spores for mali.

One with such large spores on Populus bark (HB 6930) has faintly hemiamyloid apical rings.

Guy Garcia, 01-01-2013 18:31
Re : Another fungus on Tilia wood
Bonjour Enrique,

voir peut-être du côté de "Cistella" perparvula mais tes spécimens présentent des spores et des asques plus grands.

Amitiés, Guy
Enrique Rubio, 01-01-2013 21:47
Enrique Rubio
Re : Another fungus on Tilia wood
Thank you to both.
So, Cistella sp.