• Phyllotheca A.T. Brongniart, 1828 † [Family: Gondwanostachyaceae]
• Phyllotheca Nuttall ex G.-L. Chu & S.C. Sanderson, 2017 accepted as Extriplex E.H. Zacharias in Zacharias & Baldwin, 2010 [Family: Amaranthaceae]
• Phyllotheca australis †
• Phyllotheca indica †
• Phyllotheca wonthaggiensis †
• Phyllothecaceae † accepted as Gondwanostachyaceae †
• Phyllothecales † accepted as Equisetales