Agrocybe arvalis

Cuticle (pileipellis) composed of a thick layer of globose to vesiculose cells, with abundant pileocystidia ranging from fusiform to lageniform.

Caulocystidia very abundant on the stipe surface, with morphology very similar to the pileocystidia.

Cheilocystidia very abundant, fusiform, widened at the base, with faint granular content inside.

Pleurocystidia scattered, large, fusiform to lanceolate, many of them bearing several fairly long finger-like projections (digitations) at the apex.

Basidia cylindrical, 2-spored, mixed with some 4-spored basidia.

Spores large, ellipsoidal, smooth, without vacuolar content, yellowish under the microscope, with a small apiculus and a germ pore barely visible at the opposite pole.

Herbarium material available: JTP2560/25.