Fungiform papillae. The surface epithelium (A) is not keratinized and covers a highly cellular lamina propria (B)
Filiform papillae are the most numerous of the lingual papillae and are widely distributed over the surface of the tongue. They are typically tapered and covered with a completely keratinized, or partially keratinized, stratified squamous epithelium (arrow). Taste buds are not found on filiform papillae.