Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct. Class Magnoliopsida Brongn. (1843) Subclass Cornidae Frohne & U. Jensen ex Reveal (1994) see Subclass Asteridae Takht. (1967) Superorder Cornanae Thorne ex Reveal (1996) see Order Cornales Link (1829) Order Cornales Link (1829) Family Nyssaceae Juss. ex Dumort. (1829), nom. cons. - sour gum family Genus Camptotheca Decaisne (1873)