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03-10-2009 18:22

Hans-Otto Baral Hans-Otto Baral

Here is the second one. This has an inamyloid hyme

03-10-2009 18:02

Hans-Otto Baral Hans-Otto Baral

Still busy with collections from Savoyen Alps. Nor

30-09-2009 21:54

Hermine Lotz-Winter

Bonsoir, il y a deux semaines j'ai trouvé une

30-09-2009 15:20

Alain BRISSARD

Ayant suivi l'échange de propos entre Enrique, Ot

28-09-2009 21:14

Enrique Rubio Enrique Rubio

Hi to all: I’d like to know your opinion ab

27-09-2009 00:27

Perz Piotr

Hi ! This ?Melanospora I found directly on Pice

27-09-2009 00:05

Perz Piotr

Dear Asco-Friends Yesterday I find this little,

23-09-2009 14:17

Alain BRISSARD

Une pézize remise lors d'une exposition de la SML

22-09-2009 21:51

Alain GARDIENNET Alain GARDIENNET

I have problem to translate this : Ascomawand 20

22-09-2009 21:36

Stip Helleman Stip Helleman

Bonne nuit, has anybody a idea about this thing,

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Ostropales indet. 2
Hans-Otto Baral, 03-10-2009 18:22
Hans-Otto BaralHere is the second one. This has an inamyloid hymenium (like Ostropa and Robergea), but the spore sheath is very distinctly hemiamyloid!

N of Digne, Quercus pubescens branch 10 mm thick. Sp. ca. 300 µm long, *2.5-3.2 µm wide, cells 8-8 µm long, lipid content 1.5-2.5. Asci and whole hymenium inamyloid, but spores in dead state (sometimes also living?) IKI 2rr, after shortly boiling IKI bright blue.

Zotto
  • message #9144
Hans-Otto Baral, 03-10-2009 18:25
Hans-Otto Baral
Re:Ostropales indet. 2
The ascomata are almost perithecioid here.
  • message #9145
Gernot Friebes, 04-10-2009 14:48
Re:Ostropales indet. 2
Hi Zotto,

could it be Schizoxylon albo-atrum? At least this is my outcome with the key of Schizoxylon by Martha Sherwood.

Best wishes,

Gernot
Hans-Otto Baral, 04-10-2009 23:15
Hans-Otto Baral
Re:Ostropales indet. 2
Hi Gernot

thanks, that's a good idea! Sherwoods illustration on p. 112 fits quite well. The ascospore cells she gave as 4-5 x 2 µm, while I measured 5-8 x 2.5-3.2 µm in the living state (sorry for my error above). It is a pity that we do not know whether the spores are also hemiamyloid in Sherwood's material, especially Rehm's type. Sherwood says for the paraphyses J- or faintly J+ blue, but we must know that she used Melzer, and a hemiamyloid hymenium like in my Ostropales indet. 1 would be in Melzer just like that, J- or faintly blue. In one of her material of alboatrum (from Oregon) she reported a strongly amyloid epithecium. And I do not understand why she says "apparently common" but cites only 7 collections.

Zotto