Dear forum members,

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)?