13-01-2026 07:57
Danny Newman
cf. Bombardia on indet. decorticate woodAppalachia
11-01-2026 20:35
Josep Torres
Hello.A very tiny pyrenomycete sprouting sparsely
13-01-2026 10:13
Danny Newman
Cordieritidaceae sp. on indet. wood w/ Hypoxylon s
13-01-2026 07:28
Danny Newman
Chlorociboria glauca on indet. decorticate logThe
13-01-2026 07:14
Danny Newman
Neodasyscypha cerina on indet decorticate logThe S
13-01-2026 09:10
Danny Newman
Dasyscyphella chrysotexta on indet. decorticate ha
13-01-2026 08:43
Danny Newman
Tricladium varicosporioides on indet. decorticate
13-01-2026 08:49
Danny Newman
Coccomyces sp. on fallen Rhododendron leavesPretty
12-01-2026 22:02
Ethan CrensonHello all, I am hoping someone will have some ins
13-01-2026 07:51
Danny Newman
Atrocalyx sp. on indet. herbaceous stemAppalachian
Apothecia are < ca 0.5 mm across; pale yellow with a short white stalk. Excipular cells are rectangular away from the margin, longer and thick-walled towards the margin (textura oblita?).
Asci are 110-130 x 7-9 µm; tip turning red in IKI.
Spores are 15-16 x 3.5-4 µm; no septa; with several large oil bodies and many smaller ones; some flattened on one side.
Paraphyses are ca 1-2 µm wide, with slightly swollen tips with conspicuous oily contents.
Because of the ascus reaction to IKI and the excipular structure, I provisionally identified it as an Allophylaria. A clavuliformis seems to be the best fit, but I have very little information on this species. I'd be grateful for any guidance.
Thanks in advance.
Marcus
Did you consider A. Byssacea ?
It's not rare in wet zones such as Le Marais Poitevin, and Lycopus europaeus is the most frequent substrate.
Amitiés
Michel
Zotto
Zotto - thank you for your help.
How does A. byssacea, which Michel mentions, differ from A. clavuliformis?
I am unaware of a good redescription. Karsten published it 10 years after byssacea, and perhaps he thought - like me - that on dicots grows another fungus than on monocots.
I first thought the spores are wider on dicots but finally i gave up this distinction.
Zotto