Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies Biota "neomura" Domain Eukaryota Chatton, 1925 - eukaryotes neokaryotes Cavalier-Smith 1993 - mitochondrial eukaryotes neozoa Cavalier-Smith 1993 Superkingdom Corticata Lankester, 1878 Kingdom Plantae Haeckel (1866) - plants Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants Infrakingdom Streptophyta C. Jeffrey (1967) Superphylum Embryophyta "polysporangiophytes" Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998) - vascular plants [Subphylum] Euphyllophytina Infraphylum "Radiatopses" Kenrick & Crane (1997) "lignophytes" Class Spermatopsida "core seed plants" Subclass Pinidae Cronquist, Takht. & Zimmerm. (1966) Order Pinalesᵀ Gorozh. (1904) - conifers Family Pinaceaeᵀ Spreng. ex F. Rudolphi (1830) - pine family Subfamily Piceoideae Genus Piceaᵀ A. Dietr. (1824) Picea abies (L.) H. Karst. (1881) - Norway spruce Picea alcoquiana (Veitch ex Lindl., 1861) Carrière (1867) Picea asperata Mast. (1906) Picea canadensis (P. Mill.) B.S.P. Picea engelmannii (Parry) Engelm. - Columbian spruce Picea glauca (Moench) Voss (1907) - white spruce Picea jezoensis (Siebold & Zucc.) Carrière (1855) - Yeddo spruce Picea marina Picea morrisonicola Hayata (1908) Picea omorika (Pancíc) Bolle Picea orientalis (Linnaeus) Link Picea pungens Engelm. (1879) - blue spruce Picea rubens Sarg. (1898) - red spruce Picea schrenkiana Fisch. & C.A.Mey. (1842) Picea sitchensis (Bong.) Carrière (1855) - Sitka spruce Picea smithiana (Wall.) Boiss. (1884)