• Tetraparma B.C. Booth in B.C. Booth & H.J. Marchant, 1987
• Tetrapera Haeckel, 1881 (uncertain)
• Tetraspora F.A.W. Miquel, 1859 accepted as Baeckea Linnaeus, 1753 [Family: Myrtaceae]
• Tetraspora Hallett & Lester, 1999 [Family: Sphaeractinomyxidae]
• Tetraspora Link ex Desvaux, 1818 [Family: Tetrasporaceae]
• Tetrastemma Diels, 1906 accepted as Uvariopsis Engler, 1899 [Family: Annonaceae]
• Tetrastemma Ehrenberg, 1831 [Family: Tetrastemmatidae]
• Thyrasperma N.E. Brown, 1925 accepted as Hymenogyne A.H. Haworth, 1821