Hello all,

On 27/03/26, in Kraaiveld in Wingene (Belgium), in a damp forest zone consisting mainly of Prunus avium (old plantations), I found an asco that reminded me of Dumontinia.

It was a solitary, relatively old specimen on moss-covered clayey soil surrounded only by Ficaria verna. Within a radius of about five meters, not a single Anemone nemorosa could be found.

The mushroom was attached to a superficial buried sclerotium and clung to the roots of a young Ficaria verna plant.
Microscopy confirmed Dumontinia.

However, the fact that it occurred with only Ficaria deprives me of any certainty.

Is the occurrence of Dumontinia with only Ficaria a known phenomenon?

Macroscopic:
° apothecium: saucer-shaped; 16.5 mm diameter
° stalk: 7.5 mm and 1.7 mm diameter; black
° sclerotium: 11x8.5 mm; black, wrinkled; contents cottony against the wall somewhat gelatinous and yellowish

Microscopic:

° asci: IKI+; with croziers
° layer of elongated cells present against ectal excipulum
° spores: with 4 nuclei; elongated ovoid; one apex often slightly blunter than the opposite; mature not pinching off conidia;
- measurement 1 (free spores in preparation in water): (13.4) 14.1 - 16.6 (16.8) × (6.7) 6.8 - 7.4 (7.7) µm
Q = (1.9) 1.93 - 2.4 (2.5) ; N = 17
Me = 15 × 7.1 µm ; Qe = 2.1;
- measurement 2 (in spore in water): (12.9) 14.1 - 16.6 (17.2) × (6.1) 6.3 - 7.5 (8.6) µm
Q = (1.8) 1.9 - 2.5 (2.8) ; N = 35
Me = 15.2 × 7 µm ; Qe = 2.2

Thanks in advance,
William