02-01-2026 17:43
MARICEL PATINOHi there, although I couldn't see the fruitbody, I
01-01-2026 18:35
Spooren Marco
Original loamy soil aside a artificial lake.The co
31-12-2025 19:27
Spooren Marco
Collected from loamy soil, at waterside (completel
30-12-2025 16:44
Pascal DucosBonjour,Une anamorphe rose stipitée, très nombre
30-12-2025 17:14
Bernard CLESSE
Bonjour à toutes et tous,Pourriez-vous aider Albe
Hymenoscyphus phiala
Hans-Otto Baral,
03-11-2025 16:30
Hello
I want to ask you if you have found this year or in the last years Hymenoscyphus phiala on Alnus twigs. It is not rare and easily recognizable, but its nomenclature is very unclear. Besides, it is not clear if it is a Hymenoscyphus or perhaps a Cyathicula or Bisporella because of the heavily gelatinized ectal excipulum.
If you have preserved a specimen in the past years, I would be happy if a sequence could be obtained from it. To my knowledge there is no DNA available.
The original illustration in Flora Danica could represent a Hymenoscyphus indeed, but the aposize stated by Saccardo 1889 gives too large disc diameters of of 4-7 mm, unlike our fungus which has around 1-2.5 mm. What Rehm 1893 named H. phiala (from Wannsee, Sydow) has large oil drops in the spores and faintly amyloid ascus tips. I guess it was something like H. calyculus what Rehm (and perhaps also Vahl) was dealing.
Thanks
Zotto