14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
14-11-2025 18:31
Lothar Krieglsteiner
Hello,can somebody provide me with a file of:Rothe
12-11-2025 09:25
Viktorie Halasu
Hello, I need help with a pale terrestric Pseudom
11-11-2025 20:16
Bohan JiaHi, lastly I have found these tiny yellow decayin
09-11-2025 13:20
Josep Torres
Hello.A tiny ascomycete, appearing as erupting gra
08-11-2025 00:29
Francois Guay
I found this species in Quebec, Canada, on herbace
Hello everyone,On dead wood of Cytisus scoparius I found a group of tiny apothecia. Does anyone recognizes this species or is familiar with the group in which this species should be found?
Apothecia young barrel-shaped, dark brown and with a white flaky edge around the opening, older cup-shaped, up to 0.5 mm diam., dark brown with still the white edge present, sessile, base broadly attached to the substrate, base blackish brown, hymenium grey when young, older yellowish grey.
Spores 12,5-14,3 x 4,4-5,2 (10 spores meassured),
Asci 87-107x8,-9,5 ?m. J-, with clamps,
Paraphyses thread-like, septated, sometimes splitting, upto 2 ?m diam.
Excipulum composed of (only?) brown, globose thick-walled cells, towards de margin transitioning into hyphae, but I don't know whether this means the apothecia have marginal hairs,
The white flakes consist of microscopically small grains which release immediately in water.
Pretty! I bet this is Cordieritidaceae and that it has glycogen bodies in the spores like Patinella sanguineoatra. And the granules in hymenium are also reminiscent of that species. Yours is of course something else but perhaps related. I would be interested to sequence this, if you can spare piece of the collection.
Thank you,
Adam
Enrique and Zotto, Thanks also for your reply. It's a known species (good to know), but apparently not officially described yet.
Zotto, indeed, when I checked whether the granules would dissolve in KOH, to my surprise, most of the tissue dissolved. I found this rather strange that I was reluctant to mention it (and also to avoid wasting apothecia). I thought I'd wait and see what suggestions would come.