Peridioles contain glebal tissue, basidia, and basidiospores, surrounded by a hardened wall. The basidia (spore-bearing cells) are usually small, four-spored, and may have interspersed cystidia. The basidia each produce two spores. "Psilocybe cyanofibrillosa" basidia each produce four spores, and rarely only two spores. It is a woody, pileate fruiting body with pores lined with basidia on its underside. The staggered setup minimizes the chance of spores colliding with neighboring basidia during release. The basidia (spore-bearing cells) are six-spored. The basidia (spore-producing structures) lack basal clamps. The basidia are four-spored and clamped. The basidia (spore-bearing cells) are club-shaped and four-spored. Subsequent generations of basidia have shorter and less protuberant bodies. The specific epithet "bispora" distinguishes the two-spored basidia from four-spored varieties. The basidiocarp remains closed until after the spores have been released from the basidia. The basidia is not necropigmented (basidia that become ochraceous and collapse). The basidia (spore-bearing cells) are club-shaped and smooth.