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22-12-2025 23:38

Patrice TANCHAUD

Bonsoir, récolte sur un mur en pierre, apothéci

21-12-2025 12:34

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

21-12-2025 09:32

Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

22-12-2025 00:47

Patrice TANCHAUD

Bonsoir, récolte à proximité du milieu dunaire

21-12-2025 21:32

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

21-12-2025 21:40

Isabelle Charissou

Bonjour, j'aimerais connaitre les références de

21-12-2025 21:31

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

21-12-2025 21:31

Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

20-12-2025 23:08

Patrice TANCHAUD

Bonsoir, récolte sur sol sablonneux dans l'arriÃ

21-12-2025 01:54

David Chapados David Chapados

Hi,Would it be possible to find the species with t

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Hymenoscyphus fructigenus on Acer?
Juuso Äikäs, 08-09-2020 21:52
I have previously found H. fructigenus growing on an old acorn and read it grows on Corylus nuts as well. But can it also grow on samaras of Acer platanoides? The apos are pretty tough and redden on bruising. 

Spores:

(18.8) 19.6 - 23.3 (23.9) × (3.9) 4.1 - 4.5 (4.6) µm
Q = (4.3) 4.5 - 5.2 (5.3) ; N = 10
Me = 21.3 × 4.3 µm ; Qe = 4.9

  • message #64946
  • message #64946
Hans-Otto Baral, 08-09-2020 21:55
Hans-Otto Baral
Re : Hymenoscyphus fructigenus on Acer?
Yes of course it can. But nobody knows if it is genetically all the same. At least on Carpinus seeds occurs a different species.
Juuso Äikäs, 08-09-2020 21:59
Re : Hymenoscyphus fructigenus on Acer?
Ok then, good to know. It has a wider range of hosts than I previously thought.
Hans-Otto Baral, 09-09-2020 09:32
Hans-Otto Baral
Re : Hymenoscyphus fructigenus on Acer?
I noticed I have a folder for Acer with some drawings. There are now also your pics.

The variation within Quercus is high, I have there a collection that is surely not conspecific with others on Quercus because of the broad spores with low lipid content.