Copelandia is a now deprecated  genus of mushrooms consisting of at least 12 species. Many American mycologists previously placed members of Panaeolus which stain blue into Copelandia, whilst European mycologists generally used the name Panaeolus instead. Now all mushrooms previously categorised under the Copelandia genus are given the name Panaeolus universally. The Copelandia genus was a subgenus of Panaeolus created by Abbé Giacomo Bresadola (1847–1929) in honor of Edwin Bingham Copeland (1873–1964), an American who gathered fungi in the Philippines and sent some collections to Bresadola.