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Mot de passe perdu? S'inscrire

18-11-2025 18:26

David Malloch David Malloch

I am trying to locate the article, Müller, E. 195

18-11-2025 13:59

Nogueira Héctor

November 14, 2025 Brazuelo (León) SPAIN Hymenosc

17-11-2025 19:14

herman lambert

Apothécie discoïde 0.6 cm diam., orangeFace hymÃ

17-11-2025 21:57

Philippe PELLICIER

Bonjour,Récolté sur bois de feuillu mort dur, no

16-11-2025 21:09

Robin Isaksson Robin Isaksson

Anyone recognize this acc. to pictures.? Found on

17-11-2025 21:46

Philippe PELLICIER

Bonjour,Récolté sur bois pourrissant de feuillu

14-11-2025 16:26

Marian Jagers Marian Jagers

Hello everyone, On dead wood of Cytisus scoparius

15-11-2025 23:22

Mario Filippa

Hello,this is what I think to be Hymenoscyphus mac

15-11-2025 20:25

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Nov. 2025

15-11-2025 09:21

Josep Torres Josep Torres

Hello.An anamorph resembling Capronia is sprouting

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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.