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07-03-2021 10:11

Jean-Baptiste Perez

J'ai récolté le 4 février un asco blanc, ou jau

07-03-2021 15:23

Castillo Joseba Castillo Joseba

me mandan el material de Galicia, recolectado en b

02-03-2020 13:09

Björn Nordén

Hi!does anyone have a pdf of Wehmeyer, L.E. (1961

07-03-2021 11:14

Thorben Hülsewig

Hi there,i need you help with this white asco that

07-03-2021 10:11

Jean-Baptiste Perez

J'ai récolté le 4 février un asco blanc, ou jau

07-03-2021 10:11

Jean-Baptiste Perez

J'ai récolté le 4 février un asco blanc, ou jau

07-03-2021 10:10

Jean-Baptiste Perez

J'ai récolté le 4 février un asco blanc, ou jau

07-03-2021 10:10

Jean-Baptiste Perez

J'ai récolté le 4 février un asco blanc, ou jau

07-03-2021 10:10

Jean-Baptiste Perez

J'ai récolté le 4 février un asco blanc, ou jau

07-03-2021 10:10

Jean-Baptiste Perez

J'ai récolté le 4 février un asco blanc, ou jau

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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