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
Hi to everybody.This Pyrenopeziza grew in moist le
Yellow Otidea
Viktorie Halasu,
03-08-2016 00:25
Hello all,could you please help me with this nice Otidea?
Found at a forest path, close to the city, nitrogen rich soil (Urtica, Impatiens sp.), young deciduous trees around.
Young apothecia lemon yellow, older (and dryer) discoloring to light yellow-ochre with a bit more yellow hymenium. Cup up to 30 × 15 mm, stem cca 10 × 3-6 mm.
Receptacle slightly wrinkled, no ribs, fine furfuration in the same color.
Sp. oblong, *(9,8) 10,3-11,5 (11,8) × (4,9) 5,4-5,8 (6) um, Me = 10,8 × 5,5 um, Q = (1,7) 1,8-2,1 (2,3), Qe = 2.
Paraphyses clavate or capitate, straight or slightly bent.
Ectal excipulum rich with yellow-brown (gold-brown) exsudate, in KOH yellowing, in MLZ very slowly dissolving (I didn't see those amber drops, but after about 10-15 min the preparate was completely without exsudate).
Medulla contains some angular bodies, hyaline in water, changing to brown in MLZ. Hyphae in medulla without exsudate.
Mycelium hyfae with very sparse exsudate, yellowing in KOH.
It looks a lot like O. concinna, but I didn't find any info about those "cells" in medulla, and character of the locality is perhaps a bit different too.
Thank you very much.
Nicolas VAN VOOREN,
03-08-2016 18:31
Re : Yellow Otidea
All the characters correspond to Otidea concinna.
The special "cells" in medullary excipulum should be some exudates that dissolve in MLZ into amber drops.
The special "cells" in medullary excipulum should be some exudates that dissolve in MLZ into amber drops.
Viktorie Halasu,
04-08-2016 09:47
Re : Yellow Otidea
Thank you, Nicolas.
This is a new genus for me, so I'm still learning to see the microchemical reactions.
This is a new genus for me, so I'm still learning to see the microchemical reactions.







