19-02-2026 13:50
Margot en Geert VullingsWe found this collection on deciduous wood on 7-2-
16-02-2026 21:25
Andreas Millinger
Good evening,failed to find an idea for this fungu
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
17-02-2026 17:26
Nicolas Suberbielle
Bonjour à tous, Je recherche cette publication :
15-02-2026 04:32
Tomaz Vucko
One more specimen that is giving me some descent a
17-02-2026 13:41
Isabelle CharissouBonjour, est-ce que quelqu'un pourrait me fournir
16-02-2026 18:34
Thierry Blondelle
Bonjour,La micro de cet anamorphe de Hercospora su
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.
My photos aren't ready yet. I'll send them to you tomorrow and I'll also share them here.
I've now soaked some apothecia and repeated the test. The excipulum discolored slightly (not as strongly as yesterday), and at the beginning only a very fleeting light brown discoloration was visible. Not spectacular or intense.
Does it make any difference to the reaction whether fresh or dried material is used?
Here my pics collected by my friend Javi Mateos on branches of Genista florida still attached to the shrub (may 2023, 1000 m of altitude).
In reality, the apos (up tp 0.6 mm) did not look very 'sanguine'.
The ionomidotic reaction exists, but it was very weak. If anyone needs the photos at higher resolution, please request them from me. I have an ITS sequence that I already sent you. The LSU was invalid and I couldn't use it.
Do you know were the protologue of this species is?