Dicotyledon

Placement

Kingdom Plantae

Subkingdom Tracheobionta

Division Magnoliophyta -- angiosperms, flowering plants

Class Magnoliopsida -- dicotyledons

Synonyms and common names

Synonyms: Dicotyledoneae, Magnoliatae Common names: Dicotyledons

Reference

http://www.itis.usda.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=18063 as of 2002-05-30

ITIS' classification is somewhat controversial at the moment. There is good reason to expect that many of the groups are para- or polyphyletic, and a number of alternative classifications have arisen.

Children

• Subclass Asteridae
  • Orders
  • Asterales (sunflowers) - 1 (very big) family
  • Callitrichales - 2 families
  • Calycerales - 1 family
  • Campanulales - 6 families
  • Dipsacales - 4 families
  • Gentianales - 4 families
  • Lamiales - 5 families
  • Plantaginales - 1 family
  • Polemoniales - 1 family
  • Rubiales (madders) - 1 family
  • Scrophulariales - 12 families
  • Solanales - 7 families
• Subclass Caryophyllidae
  • Orders
  • Caryophyllales - 12 families
  • Plumbaginales - 1 family
  • Polygonales - 1 family
• Subclass Dilleniidae
  • Orders
  • Batales - 1 family
  • Capparales - 6 families
  • Diapensiales - 1 family
  • Dilleniales - 2 families
  • Ebenales - 5 families
  • Ericales - 7 families
  • Lecythidales - 1 family
  • Malvales - 6 families
  • Nepenthales - 3 families
  • Primulalales - 3 families
  • Salicales - 1 family
  • Sarraceniales - this order is empty in ITIS; its contents appear to now be included in the Nepenthales.
  • Theales - 13 families
  • Umbellales - this order is empty in ITIS; most of its contents appear to have been noved to the Apiales
  • Violales - 21 families
• Subclass Hamamelidae
  • Orders
  • Casuarinales - 1 family
  • Fagales - 3 families
  • Hamamelidales - 6 families
  • Juglandales - 3 families
  • Leitneriales - 1 family
  • Myricales - 1 family
  • Urticales - 6 families
• Subclass Hamamelididae
  • Orders
  • Daphniphyllales - no families listed
  • Didymelales - no families listed
  • Eucommiales - 1 family
  • Trochodendrales - 2 families
• Subclass Magnoliidae
  • Orders
  • Aristolochiales - 1 family
  • Illicales - 2 families
  • Laurales - 4 families
  • Magnoliales - 14 families
  • Nymphaeales - 4 families
  • Papaverales - 2 families
  • Piperales - 3 families
  • Ranunculales - 7 families
• Subclass Rosidae
  • Orders
  • Apiales - 2 families
  • Celestrales - 11 families
  • Cornales - 5 families
  • Euphorbiales - 6 families
  • Fabales - 1 family
  • Geraniales - 5 families
  • Haloragales - 4 families
  • Linales - 3 families
  • Myrtales - 12 families
  • Podostemales - 2 families
  • Polygalales - 7 families
  • Proteales - 1 family
  • Rafflesiales - 3 families
  • Rhamnales - 4 families
  • Rhizophorales - 1 family
  • Rosales - 20 families
  • Santalales - 12 families
  • Sapindales - 16 families

• Families with uncertain placement. These families are not mentioned in ITIS. The names mostly result from modern cladistics. Of course, the plants themselves always existed, and are likely already in the taxa listed above, but with a different name that has not yet been identified. They will be moved when enough information is available. A usable chart of families may be found at http://www.museums.org.za/bio/plants/angiospermae-classif.htm. Description of most of these families may also be found on the Delta site at http://biodiversity.uno.edu/delta/angio/
  • Berberidopsidaceae - The coral plant of Chile
  • Aphloiaceae - Included in Rosidae by some, Violales by others. See also http://www.mobot.org/MOBOT/Research/APweb/orders/crossosomatalesweb.htm
  • Vahliaceae - 1 genus Vahlia or Bistella with 5 species. Included in Rosales by some, Saxifragales by others. See Delta http://biodiversity.uno.edu/delta/angio/www/vahliace.htm for more information.
  • Plocospermataceae - 1 genus, 3 species. Variously included in Scrophulariales, Gentianales and Loganiaceae. See Delta http://biodiversity.uno.edu/delta/angio/www/plocospe.htm