d. Fungiform, foliate, and circumvallate papillae Fungiform papillae are mushroom shaped, present at the dorsal surface of the tongue Foliate papillae are ridges and grooves present at the posterior edge of the tongue circumvallate papillae are only few in number, and are located posterior to the oral part of the tongue. ** Filiform papillae are not associated with taste buds. Solution d. Fungiform, foliate, and circumvallate papillae Fungiform papillae are mushroom shaped, present at the dorsal surface of the tongue Foliate papillae are ridges and grooves present at the posterior edge of the tongue circumvallate papillae are only few in number, and are located posterior to the oral part of the tongue. ** Filiform papillae are not associated with taste buds..