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02-03-2026 22:07

Jorge Hernanz

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28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

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Malcolm  Greaves Malcolm Greaves

Can someone explain the features that split Geoscy

27-02-2026 17:51

Michel Hairaud Michel Hairaud

Bonjour, Quelqu'un peut il me donner un conseil p

27-02-2026 16:17

Mathias Hass Mathias Hass

Hi, Found this on Betula, rather fresh fallen twi

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Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

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Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

01-03-2026 20:34

Hans-Otto Baral Hans-Otto Baral

Does someone have access to Phytotaxa? I am intere

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Tapesia
Bometon Javier, 22-02-2013 22:54
Bometon JavierAscomas azulados, latex acuoso al corte

Esporas 9-14 x 2-3, fusiformes, curvadas y lisas.
Parafisis 60-70 x 3-4 cilindricas, sin septos y llenas de aceite refringente.
Ascas 60-75x5,6,  8 esporas, biseriadas, croziers +, IKI+.
Hifas basales marrones, alargadas y septadas.
Excipulo de estructura globosa.

Dudo entre Tapesia lividofusca y Tapesia fusca.
Alguna idea?

Saludos
Javier
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Luc Bailly, 23-02-2013 11:34
Luc Bailly
Re : Tapesia
Hello Javier,

Normally, Mollisia (Tapesia) lividofusca should be quite easy to recognize.
Did you look at Andreas Gminder's key?  http://www.mollisia.de/Word_Dokumente/key.doc? (in English)
Now you have to make a thin cut o the apothecia and check the ectal excipulum and the medullar excipulum (or subhymenium). In M. lividofusca, the subhymenium is partially colored in brown. Kinda like on this photo below.

With the colors of the apothecia's, not especially dark externally, my guess would rather be Mollisia (Tapesia) fusca. (Tapesia is now grouped with Mollisia, because there's a gradient in the thickness of the subiculum, and intermediates.)

Cheers - LUC.

EDIT: More here: http://www.ascofrance.fr/search_recolte/1365?
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Bometon Javier, 24-02-2013 11:15
Bometon Javier
Re : Tapesia

Hola Luc, en cuanto pueda hare la preparación que me indicas, es normal una medida esporal tan larga para T. fusca?


Gracias y saludos
Javier   

Luc Bailly, 24-02-2013 14:59
Luc Bailly
Re : Tapesia
Hi Javier,
The spores size matches fine with Mollisia fusca: yours are a bit smaller, but that's not annoying IMO. Also, there are no oil drops visible in the spores of your sample, with matches fine with M. fusca as well.
Cheers - LUC.
Hans-Otto Baral, 24-02-2013 17:17
Hans-Otto Baral
Re : Tapesia
Hi Luc & Javier

I am not sure with fusca. That species has well some oil droplets near the ends. But a striking feature is the yellow KOH reaction. You  can check this also macroscopically, as is seen in this photo made from M. fusca by Ingo Wagner. Also the characteristic prominent subiculum can be seen on this photo.

Zotto
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Bometon Javier, 25-02-2013 19:01
Bometon Javier
Re : Tapesia
Hola Luc, envío fotos del corte, no me parece lo mismo que lo de tú archivo, supongo que lo he hecho bien.

Hola Zotto, la reacción al KOH no es amarilla, esto ya descarta T fusca?.


Gracias
Javier

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Hans-Otto Baral, 25-02-2013 22:50
Hans-Otto Baral
Re : Tapesia
yes, T/M. fusca is then discarded. Perhaps M. benesuada?
Bometon Javier, 26-02-2013 20:29
Bometon Javier
Re : Tapesia
Gracias Zotto, miro por Mollisia benesuada, parece que podría ser esta


Saludos
Javier
Luc Bailly, 27-02-2013 17:10
Luc Bailly
Re : Tapesia
Yes, my bad, M. fusca is indeed listed with oil = 1-2, which means some guttules content.
But according to Andreas Gminder, M. benesuada has guttules also, most of the time at least.

If the spores of your sample are without oil, and if KOH on the paraphyses is not yellow, check also M. cinerea, which can have some subiculum.
Hans-Otto Baral, 27-02-2013 17:37
Hans-Otto Baral
Re : Tapesia
I agree, M. benesuada should have some droplets near each end. But maybe the limited resolution of the photos does not show them?

For M. cinerea the spores are too long.

Zotto