The cap (
pileus) of
Psilocybe azurescens is in diameter. It has a conic to convex shape, expanding to broadly convex and eventually flattening with age with a pronounced, persistent broad
umbo. Its surface is smooth and
viscous when moist, covered by a separable gelatinous
pellicle. It is chestnut to ochraceous brown to caramel in color, often becoming pitted with dark blue or bluish black zones. It is
hygrophanous, fading to light straw color in drying and strongly bruising blue when damaged. Its margin is even, sometimes irregular and eroded at maturity. At first, it is slightly incurved, though it becomes decurved with time. The cap is translucent striate and often leaves a fibrillose annular zone in the upper regions of the
stipe The
lamellae are ascending, and have a sinuate to adnate attachment. They are brown and stain black when injured. They are close, and two-tiered, with whitish edges. The
spore print is a dark purplish brown to purplish black. The stipe is in length and . It is thick, silky white to dingy brown with age. It is hollow at maturity, and composed of twisted, cartilaginous tissue. The base of the stipe thickens downwards, is often curved, and is characterized by coarse white aerial tufts of
mycelium, often with azure tones. The mycelium surrounding the stipe base is densely
rhizomorphic (i.e., root-like), silky white, tenaciously holding the wood-chips together. The taste of this mushroom is extremely bitter, while it is odorless to starchy smelling. == Habitat and distribution ==