Hamamelidae is a subclass of plants in the older Cronquist classification scheme. In more modern schemes, the families in this subclass are distributed to other subclases of the Dicotyledons. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Jump to: navigation, search Divisions Land plants (embryophytes) Non-vascular plants (bryophytes) Hepaticophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants... Jump to: navigation, search Classes Magnoliopsida - Dicots Liliopsida - Monocots The flowering plants (also angiosperms) are a major group of land plants. ... Orders see text Dicotyledons or dicots are flowering plants whose seed contains two embryonic leaves or cotyledons. ... Scientific classification or biological classification refers to how biologists group and categorize extinct and living species of organisms. ... Families Trochodendraceae Tetracentraceae The Trochodendrales are an order of dicotyledon plants, comprising the families Trochodendraceae and Tetracentraceae. ... The Hamemelidales are an order of dicotyledons in the Cronquist system, including the following families: Family Hamamelidaceae (witch-hazel family) Family Cercidiphyllaceae (katsura tree) Family Eupteleaceae Family Platanaceae (plane trees) Family Myrothamnaceae (resurrection bush) These served as the prototype for the subclass Hamamelidae. ... The Urticales are an order of dicotyledons in the Cronquist system of classification for flowering plants, including the following families: Barbeyaceae Cannabaceae (hemp family) Cecropiaceae Moraceae (mulberry family) Physenaceae Ulmaceae (elm family) Urticaceae (nettle family) These range from small herbaceous plants to large trees, blooming from the late spring to... Binomial name Leitneria floridana The Corkwood (Leitneria floridana) is a deciduous dioecious shrub or small tree, found only in the Southeast of the United States (Arkansas, Florida, Georgia, Missouri and Texas). ... Families included in the Kew list: Fagaceae - Beech family   (including Nothofagaceae) Betulaceae - Birch family Corylaceae - Hazel family Ticodendraceae not included in the Kew list: Casuarinaceae - She-oak family Juglandaceae - Walnut family Rhoipteleaceae Myricaceae The Fagales are an order of flowering plants, including some of the best known trees. ... Families included in the Kew list: Fagaceae - Beech family   (including Nothofagaceae) Betulaceae - Birch family Corylaceae - Hazel family Ticodendraceae not included in the Kew list: Casuarinaceae - She-oak family Juglandaceae - Walnut family Rhoipteleaceae Myricaceae The Fagales are an order of flowering plants, including some of the best known trees. ... In biology, a subclass is one level below a class. ... Jump to: navigation, search Divisions Land plants (embryophytes) Non-vascular plants (bryophytes) Hepaticophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants... The Cronquist system is a scheme for the classification of flowering plants (or angiosperms). ... Jump to: navigation, search Orders see text Dicotyledons or dicots are flowering plants whose seed typically contains two embryonic leaves or cotyledons. ...