About Entoloma serrulatum (Fr.) Hesler
The cap of Entoloma serrulatum is dark blue, measuring 1.5 to 6 centimeters in diameter. When young, it is broadly convex or dome-shaped, and becomes flat or umbonate as the mushroom matures. The umbo may have a depression in its center. The cap surface is somewhat tomentose. The gills range from whitish to pinkish in color, and are adnate to decurrent in attachment. The stipe is hollow, matches the cap's dark blue color, is bare near its base, and has a silky texture near the top. This species produces a pinkish spore print. DNA analysis indicates that Entoloma serrulatum may actually be multiple distinct species, even within the Pacific Northwest region alone. Entoloma serrulatum grows in both grassy areas and forests, and it is saprophytic.
