27-04-2026 20:52
Lothar Krieglsteiner
Found on hanging tiwg of Olea europaea in dried-ou
27-04-2026 18:48
Tony MoverleyCollected 23rd April 2026, Norfolk, EnglandSwarms
27-04-2026 17:41
Lothar Krieglsteiner
.. Algarve, same leaf than the last post. The con
27-04-2026 18:05
Lothar Krieglsteiner
... still attached at standing tree. The green con
27-04-2026 17:16
Lothar Krieglsteiner
.. Algarve, moist lying.The conidiomata look like
27-04-2026 12:54
Steve ClementsBonjour. Ce petit champignon blanc résupiné et
27-04-2026 09:59
Pauline. PennaBonjour Can anyone advise me on these pycnidia fo
22-04-2026 20:54
Enrique Rubio
Hi to everybody.This Pyrenopeziza grew in moist le
Hymenoscyphus sp?
Rot Bojan,
06-11-2025 16:50
Yesterday I found a fungus on or near a needle, about 5 mm high. It is yellowish when fresh, later brownish with hairy and longitudinally whitish fibers. The spores are on average 16.2 x 6.1 microns. IKI+
Thanks in advance and best regards!
Hans-Otto Baral,
06-11-2025 17:14
Re : Hymenoscyphus sp?
You don't have it fresh for microscopy? The insertion of the stipe cannot be clarified?
My guess is a Rutstroemia, although the excipulum looks rather hyaline. Good would be to see the shape of the amyloid ring, also the contents of the living paraphyses.
Rot Bojan,
06-11-2025 17:44
Re : Hymenoscyphus sp?
Thanks for the quick reply.
The stipe is centrally inserted and gradually expands into the disc, without a distinct margin between the stipe and the hymenial surface.
I am attaching photos of the paraphyses in water and of the apical ring – slightly enlarged. The specimen was fresh, but not in perfect condition.
The stipe is centrally inserted and gradually expands into the disc, without a distinct margin between the stipe and the hymenial surface.
I am attaching photos of the paraphyses in water and of the apical ring – slightly enlarged. The specimen was fresh, but not in perfect condition.
Hans-Otto Baral,
06-11-2025 19:36
Re : Hymenoscyphus sp?
The paraphysis is dead but the apical ring is perfectly sclerotiniaceous. A possibility would be Rutstroemia luteovirescens on Acer petioles.
Rot Bojan,
06-11-2025 20:12
Re : Hymenoscyphus sp?
Thanks