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06-10-2009 22:05

Gernot Friebes

Hi, I found the following discomycet on old, we

06-10-2009 20:43

Marja Pennanen

Frb about 3mm wide and dark brown underside. Thes

06-10-2009 17:41

Pablo Chacón Pablo Chacón

Salut les Amis, j'ai besoin de votre aide. J'a

06-10-2009 17:10

Quijada Luis

Hello, I try to obtain this paper on line but only

06-10-2009 12:38

Enrique Rubio Enrique Rubio

Dear friends: Could be this species on burried wa

04-10-2009 23:29

Michel Hairaud Michel Hairaud

Bonsoir, J'aimerais savoir si la combinaison Podo

04-10-2009 23:29

Michel Hairaud Michel Hairaud

Bonsoir, Cf. sujet suivant Michel Hairaud

03-10-2009 21:56

Enrique Rubio Enrique Rubio

Dear friends: I'd like to know your opinion about

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

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Discomycet on leaves of Acer pseudoplatanus
Gernot Friebes, 06-10-2009 22:05
Hi,

I found the following discomycet on old, wet leaves of Acer pseudoplatanus (5.9.2009). I do not know why but I do not even come to a proper genus (the best genus I came across was Microscypha).
The apothecia were quite tough with a brown, somewhat appressed-hairy margin. The spores were 19-21 x 5 µm, the asci were 8-spored, IKI bb and without croziers. The paraphyses were up to 3 µm wide without any notably content. The hyphae at the margin were brownish incrustet.

Best wishes and many thanks
Gernot
  • message #9193
Gernot Friebes, 06-10-2009 22:06
Re:Discomycet on leaves of Acer pseudoplatanus
micros:

spores
asci in IKI
excipulum
  • message #9194
Hans-Otto Baral, 06-10-2009 22:13
Hans-Otto Baral
Re:Discomycet on leaves of Acer pseudoplatanus
Hi Gernot

the spores wre surely distinctly scutuloid and the leaves sceletonized. This is Hymenoscyphus vacini, also known as Lanzia vacini. Typical are the brownish striae on the exterior. Only on Acer.

here a specimen from around Munich.
Zotto
  • message #9195
Gernot Friebes, 06-10-2009 22:23
Re:Discomycet on leaves of Acer pseudoplatanus
Hi Zotto,

oh dear, I should have known that species. Anyway, thank you very much for the help and the nice pictures!
By the way, do you know what vacini means?

Best wishes,

Gernot
Hans-Otto Baral, 06-10-2009 22:30
Hans-Otto Baral
Re:Discomycet on leaves of Acer pseudoplatanus
It was the collector, V. Vacek.

Do you mean September or was it collected yesterday ? :-)

Zotto
Gernot Friebes, 06-10-2009 22:38
Re:Discomycet on leaves of Acer pseudoplatanus
thanks again!

I really mean September :)

Best wishes,

Gernot