Class Equisetopsida C.Agardh (1825) - horsetails see Subclass Equisetidae Warm. (1883)
   gymnosperms see Class Spermatopsida
     Subclass Pinidae Cronquist, Takht. & Zimmerm. (1966) - conifers
       Order Cupressales Link (1829)
         Family Cupressaceae Gray (1822), nom. cons. - cypress family
           01 Genus Cunninghamia R.Br. (1826), nom. cons.
           02 Genus Taiwania Hayata (1906)
           03 Genus Athrotaxis D.Don (1838)
           04 Genus Metasequoia Hu & W.C.Cheng (1948), nom. cons.
           05 Genus Sequoia Endl. (1847), nom. cons.
           06 Genus Sequoiadendron J.Buchholz (1939), nom. cons. prop.
           07 Genus Cryptomeria D.Don (1838)
           08 Genus Glyptostrobus Endl. (1847)
           09 Genus Taxodium Rich. (1810)
           10 Genus Papuacedrus H.L.Li (1953)
           11 Genus Austrocedrus Florin & Boutelje (1954)
           12 Genus Libocedrus Endl. (1847)
           13 Genus Pilgerodendron Florin (1930)
           14 Genus Widdringtonia Endl. (1842)
           15 Genus Diselma Hook.f. (1857)
           16 Genus Fitzroya Hook.f. ex Lindl. (1851), nom. cons., orth. cons.
           17 Genus Callitris Vent. (1808)
           18 Genus Actinostrobus Miq. (1845)
           19 Genus Neocallitropsis Florin (1944)
           20 Genus Thujopsis Siebold & Zucc. ex Endl. (1842), nom. cons.
           21 Genus Thuja L. (1753)
           22 Genus Fokienia A.Henry & H.H.Thomas (1911)
           23 Genus Chamaecyparis Spach (1841)
           24 Genus Cupressus L. (1753) - cypresses
           25 Genus Juniperus L. (1753) - junipers
           26 Genus Calocedrus Kurz (1873)
           27 Genus Tetraclinis Masters (1892)
           28 Genus Platycladus Spach (1841)
           29 Genus Microbiota Komarov (1923)