25-11-2025 14:24
Thomas Læssøehttps://svampe.databasen.org/observations/10490522
25-11-2025 11:03
Mick PeerdemanHi all,One of my earliest microscopy attempts, so
24-11-2025 15:23
Arnold BüschlenHallo, auf einer offenen Kiesfläche am Rande ein
23-11-2025 11:16
Bohan JiaHi, I found small discs growing on dead stem of
21-11-2025 10:56
Christopher Engelhardt
Very small (~0,5 mm) white ascos, found yesterday
Hello all
I found this Calonectria growing on old rotting Ilex leaves and determined it as possibly Calonectria ilicicola, but understand there's a 'similar' Calonectria pyrochroa, which I have very little information on.
Found in Sheffield, South Yorkshire, England
Spore Size = 22 x 4 micron
Ascus 60 - 70 x 9 - 10 micron
Any help or comments are as always much appreciated.
Best Wishes - John
Hi John,
The solution is perhaps here : IMA fungus - Vol. 1 n°2 / 101-108
http://www.imafungus.org/IMAfungusDetails.aspx?Rec=2
Alain
Could this not be Hydropisphaera erubescens?
@John - With regard to Calonectria pyrochroa, see http://www.ascofrance.com/search_forum/25038 for a discussion re that taxon on ASCOfrance. I shall definitely have a look at that interesting paper to which Alain has pointed us.
regards
Chris
Best Wishes - John
I think Alain has provided a good pointer. We shall see :)
Best Wishes - John
Many thanks Chris and Alain
Best Wishes - John
Yes, I look attentively your photos. It isn't a Calonectria and it looks like an Hydropisphaera. Chris gives you the solution. H. erubescens, common on Ilex leaves.
You can check the Calonectria now... And perhaps you will find an Ijuhya species growing on a such substrate too.
Alain