Skullcap and valerian are plants containing GABAergic substances . He comes from a religious family and wears a kippah (skullcap). Muslim men also wear a skullcap called a "kufi" or taqiyah (cap). The style is often erroneously called a "kufi", after the skullcap known as "kufune". The man with a beard wearing a skullcap contacted police to clear his name. They wore black satin slippers and a skullcap with a decorative button on top. In the human skull, the neurocranium includes the calvaria or skullcap. A black skullcap, framing that face, was his only stark adornment. The Indonesians also produce a machine knitted skullcap that is popular with Muslims. Others allude to its shape as closely resembling a cardinal's skullcap or zucchetto. The calotte originates from the skullcap worn by the Zouave papal regiment around 1860. The main compounds responsible for the biological activity of skullcap are flavonoids. The design utilises eight triangular panels that are joined to form a hemispherical skullcap. The upper areas of the cranial bones form the calvaria (skullcap). The plant can be confused with skullcap and other members of the mint family.