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03-07-2009 12:59

Hans-Otto Baral Hans-Otto Baral

Hi Here is a pyreno on stem of Reynoutria japonic

03-07-2009 00:40

Miguel Ãngel Ribes Miguel Ángel Ribes

Good night Small disc (< 0,5 mm), yellow-green,

01-07-2009 23:48

Miguel Ãngel Ribes Miguel Ángel Ribes

Good night This another Lachnum ? on a branch o

28-06-2009 22:43

Jean Pierre Dechaume Jean Pierre Dechaume

Je suis perturbé, car je n'arrive pas à mettre u

27-06-2009 10:49

René Dougoud

Chers Tous, Je recherche les articles de Gamund

26-06-2009 22:43

Pierre-Arthur Moreau Pierre-Arthur Moreau

Chers tous, Je m'adresse surtout aux spécialiste

26-06-2009 18:03

Miguel Ãngel Ribes Miguel Ángel Ribes

Hello I have a small Lachnum, 2-3 mm diameter,

23-06-2009 21:13

Luc Bailly Luc Bailly

Sur bois très pourri, probablement Corylus avella

23-06-2009 20:56

Luc Bailly Luc Bailly

Le tout sur hêtre. Cela ressemble à un Cosmopora

23-06-2009 19:21

Enrique Rubio Enrique Rubio

Hi to all: I wish to know your opinion about this

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Lophiostomaceae
Hans-Otto Baral, 03-07-2009 12:59
Hans-Otto BaralHi
Here is a pyreno on stem of Reynoutria japonica from Chemnitz.

Spores *31-35 x 5.5-6 µm, in shape very typical of Lophiostoma. But perithecia superficial, with an abundant subiculum of broad brown hyphae, with rounded obtuse neck.

Zotto
  • message #8418
Hans-Otto Baral, 03-07-2009 13:02
Hans-Otto Baral
Re:Lophiostomaceae
Once more. Hyphae are about 5-7 µm wide.

No Orbilia :-) I sometimes get pyrenos to determine....
  • message #8419
Perz Piotr, 03-07-2009 13:02
Re:Lophiostomaceae
Hi Zotto,

did you found an Orbilia on this substrate ?

Piotr
Jacques Fournier, 03-07-2009 13:21
Jacques Fournier
Re:Lophiostomaceae
Hi Zotto,
this sounds like Herpotrichia macrotricha. The ostiolar region usually appears paler, whitish to grey, especially when moistened.
Cheers,
Jacques
Hans-Otto Baral, 03-07-2009 15:23
Hans-Otto Baral
Re:Lophiostomaceae
Hi Jacques

yes, you are right. At least with Dennis I can confirm your opinion, thanks!

Zotto
Jacques Fournier, 03-07-2009 15:33
Jacques Fournier
Re:Lophiostomaceae
there is a good account on this taxon by Barr 1984, in Mycotaxon 20 pp 8-9. Once you know it you can't miss it again!
Jacques
Bernard Declercq, 12-07-2009 13:43
Bernard Declercq
Re:Lophiostomaceae
Hi Jacques et Zotto,
H. macrotricha occurs on Rubus fruticosus in the belgian Ardenns.
Speaking about Herpotrichia, is H. rubi different from H. herpotrichoides, two species originally described by Fuckel?
Bernard
Jacques Fournier, 12-07-2009 14:00
Jacques Fournier
Re:Lophiostomaceae
Hi Bernard,
indeed Barr (1984) synonymizes H. rubi and H. herpotrichioides.
Cheers,
Jacques