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 Hydrangeales Nakai (1943) see Order Cornales Link (1829) Family Hydrangeaceae Dumort. (1829), nom. cons. - Hydrangea family Subfamily Hydrangeoideae (Dumort.) Burnett (1835) Tribe Hydrangeae DC. (1830) see Tribe Hydrangeeae DC. (1830), nom. corr. Genus Pileostegia Hook.f. & T. Thomson (1857)