On Alnus incana.
Basidiospores measure in H2O
(9.9) 10.8 - 13.6 (18.8) × (3.3) 3.9 - 4.5 (5.2) µm
Q = (2.3) 2.5 - 3.4 (4.2) ; N = 31
Me = 12.2 × 4.2 µm ; Qe = 3