06-04-2026 21:36
Viktorie Halasu
Hello, could anyone please send me the article wi
06-04-2026 19:40
David Gibbs
Help with this one much appreciated, on rotting Fa
06-04-2026 11:07
Louis DENYBonjour forum, Trouvé sur bois de feuillu très d
06-04-2026 16:24
Juuso ÄikäsLast Tuesday I found some tiny white Helotiales gr
05-04-2026 20:40
Robin Isaksson
Hi!Found i Japan on bark of Abies sp. Spores 35-4
06-04-2026 08:15
Lothar Krieglsteiner
some days ago, on the lower surface of leaf of Que
On cow dung, between fruiting bodies of Lasiobolus papillatus, I found almost cylindrical ascomata with a diameter < 2 mm. The disc is yellowish with dentate margin.
Spores: elliptical with gelatinous coating, with longitudinal anastomosing lines, from hyaline to purple; (18.6) 20 - 24.3 (24.8) × (10.4) 11 - 11.9 (12.3) µm; Q = (1.6) 1.8 - 2.1 (2.2) ; Me = 22.3 × 11.4 µm ; Qe = 2
Asci: elongated club-shaped, Me = 210.5 × 27.4 µm ; Qe = 7.7; slight purple discolouration in Melzer:
Paraphysis: filiform, with multiple septa, width about 3.5 µm in a yellowish substance. After some days in moist environment I observe fortoulisme.
Ectal excipulum: textura globulosa.
Could this be Ascobolus michaudii?
Thanks in advance,
François Bartholomeeusen
N.B.: on two photos during microscopic examination I found clustered spores with the following dimensions: (52.3) 52.33 - 58 × (4.4) 4.42 - 5.15 (5.2) µm: Me = 55 × 4.9 µm ; Qe = 11.6.
I found only these spores and no perithecial beak. Could these spores belong to Pyxidiophora arvernensis (Laboulbeniomycete)?
See: Doveri, F. & B. Coue (2006) - First record of Pyxidiophora badiorostris from France. Doc. Myco
l. 34/ 133- 134: 33-41.
Thank you very much for your response. I think you are right. I also used the key in that publication, but I was unsure about the number of spores and their length. I suspect the spores are not fully mature.
Thanks again, now I only need to obtain confirmation about Ascobolus michaudii!
Many greetings,
François