Melchior system

The Melchior system, "a reference in all taxonomic courses", is a classification system detailing the taxonomic system of the Angiospermae according to A. Engler's Syllabus der Pflanzenfamilien (1964), also known as "modified or updated" Engler system.

The collaborators in orders (and some families) were the following:
 * Hans Melchior in Casuarinales, Juglandales, Balanopales, Leitneriales, Salicales, Fagales, Urticales, Didiereaceae, Piperales, Aristolochiales, Guttiferales, Sarraceniales, Papaverales, Hydrostachyales, Podostemonales, Julianiales, Violales, Cucurbitales, Myrtiflorae, Umbelliflorae, Primulales, Tubiflorae, Plantaginales, Liliiflorae p. p., Spathiflorae and Microspermae.
 * G. Buchheim in Proteales, Cactales, Magnoliales and Ranunculales.
 * W. Schultze-Motel in Santalales, Balanophorales, Medusandrales, Rhamnales, Malvales, Diapensiales, Ericales and Cyperales.
 * Th. Eckardt in Polygonales, Centrospermae, Batales, Plumbaginales, Helobiae, Triuridales and Pandanales.
 * G. K. Schultze-Menz in Rosales.
 * H. Scholz in Geraniales, Rutales, Sapindales and Celastrales.
 * G. Wagenitz in Thymelaeales, Ebenales, Oleales, Gentianales, Dipsacales and Campanulales.
 * U. Hamann in Cyanastraceae, Pontederiaceae, Philydraceae, Juncales, Bromeliales and Commelinales.
 * E. Potztal in Graminales, Principes, Synanthae and Scitamineae.

ordo Helobiae

 * subordo Alismatineae
 * Alismataceae
 * Butomaceae
 * subordo Hydrocharitineae
 * Hydrocharitaceae
 * subordo Scheuchzeriineae
 * Scheuchzeriaceae
 * subordo Potamogetonineae
 * Aponogetonaceae
 * Juncaginaceae
 * Potamogetonaceae
 * Najadaceae
 * Zannichelliaceae

ordo Triuridales

 * Triuridaceae

ordo Liliiflorae

 * subordo Liliineae
 * Liliaceae
 * Xanthorrhoeaceae
 * Stemonaceae
 * Agavaceae
 * Haemodoraceae
 * Cyanastraceae
 * Amaryllidaceae
 * Hypoxidaceae
 * Velloziaceae
 * Taccaceae
 * Dioscoreaceae
 * subordo Pontederiineae
 * Pontederiaceae
 * subordo Iridineae
 * Iridaceae
 * Geosiridaceae
 * subordo Burmanniineae
 * Burmanniaceae
 * Corsiaceae
 * subordo Philydrineae
 * Philydraceae

ordo Juncales

 * Juncaceae
 * Thurniaceae

ordo Bromeliales

 * Bromeliaceae

ordo Commelinales

 * subordo Commelinineae
 * Commelinaceae
 * Xyridaceae
 * Mayacaceae
 * Rapateaceae
 * subordo Eriocaulineae
 * Eriocaulaceae
 * subordo Restionineae
 * Restionaceae
 * Centrolepidaceae
 * subordo Flagellariineae
 * Flagellariaceae

ordo Graminales

 * Gramineae or Poaceae

ordo Principes

 * Palmae or Arecaceae

ordo Synanthae

 * Cyclanthaceae

ordo Spathiflorae

 * Araceae
 * Lemnaceae

ordo Pandanales

 * Pandanaceae
 * Sparganiaceae
 * Typhaceae

ordo Cyperales

 * Cyperaceae

ordo Scitamineae

 * Musaceae
 * Zingiberaceae
 * Cannaceae
 * Marantaceae
 * Lowiaceae

ordo Microspermae

 * Orchidaceae

ordo Casuarinales

 * Casuarinaceae

ordo Juglandales

 * Myricaceae
 * Juglandaceae

ordo Balanopales

 * Balanopaceae

ordo Leitneriales

 * Leitneriaceae
 * Didymelaceae

ordo Salicales

 * Salicaceae

ordo Fagales

 * Betulaceae
 * Fagaceae

ordo Urticales

 * Rhoipteleaceae
 * Ulmaceae
 * Moraceae
 * Urticaceae
 * Eucommiaceae

ordo Proteales

 * Proteaceae

ordo Santalales

 * subordo Santalineae
 * Olacaceae
 * Dipentodontaceae
 * Opiliaceae
 * Grubbiaceae
 * Santalaceae
 * Misodendraceae
 * subordo Loranthineae
 * Loranthaceae

ordo Balanophorales

 * Balanophoraceae

ordo Medusandrales

 * Medusandraceae

ordo Polygonales

 * Polygonaceae

ordo Centrospermae

 * subordo Phytolaccineae
 * Phytolaccaceae
 * Gyrostemonaceae
 * Achatocarpaceae
 * Nyctaginaceae
 * Molluginaceae
 * Aizoaceae
 * subordo Portulacineae
 * Portulacaceae
 * Basellaceae
 * subordo Caryophyllineae
 * Caryophyllaceae
 * subordo Chenopodiineae
 * Dysphaniaceae
 * Chenopodiaceae
 * Amaranthaceae
 * incertae sedis
 * Didiereaceae

ordo Cactales

 * Cactaceae

ordo Magnoliales

 * Magnoliaceae
 * Degeneriaceae
 * Himantandraceae
 * Winteraceae
 * Annonaceae
 * Eupomatiaceae
 * Myristicaceae
 * Canellaceae
 * Schisandraceae
 * Illiciaceae
 * Austrobaileyaceae
 * Trimeniaceae
 * Amborellaceae
 * Monimiaceae
 * Calycanthaceae
 * Gomortegaceae
 * Lauraceae
 * Hernandiaceae
 * Tetracentraceae
 * Trochodendraceae
 * Eupteleaceae
 * Cercidiphyllaceae

ordo Ranunculales

 * subordo Ranunculineae
 * Ranunculaceae
 * Berberidaceae
 * Sargentodoxaceae
 * Lardizabalaceae
 * Menispermaceae
 * subordo Nymphaeineae
 * Nymphaeaceae
 * Ceratophyllaceae

ordo Piperales

 * Saururaceae
 * Piperaceae
 * Chloranthaceae
 * Lactoridaceae

ordo Aristolochiales

 * Aristolochiaceae
 * Rafflesiaceae
 * Hydnoraceae

ordo Guttiferales

 * subordo Dilleniineae
 * Dilleniaceae
 * Paeoniaceae
 * Crossosomataceae
 * Medusagynaceae
 * Actinidiaceae
 * Eucryphiaceae
 * subordo Ochnineae
 * Ochnaceae
 * Dioncophyllaceae
 * Strasburgeriaceae
 * Dipterocarpaceae
 * subordo Theineae
 * Theaceae
 * Caryocaraceae
 * Marcgraviaceae
 * Quiinaceae
 * Guttiferae or Clusiaceae
 * subordo Ancistrocladineae
 * Ancistrocladaceae

ordo Sarraceniales

 * Sarraceniaceae
 * Nepenthaceae
 * Droseraceae

ordo Papaverales

 * subordo Papaverineae
 * Papaveraceae
 * subordo Capparineae
 * Capparaceae
 * Cruciferae or Brassicaceae
 * Tovariaceae
 * subordo Resedineae
 * Resedaceae
 * subordo Moringineae
 * Moringaceae

ordo Batales

 * Bataceae

ordo Rosales

 * subordo Hamamelidineae
 * Platanaceae
 * Hamamelidaceae
 * Myrothamnaceae
 * subordo Saxifragineae
 * Crassulaceae
 * Cephalotaceae
 * Saxifragaceae
 * Brunelliaceae
 * Cunoniaceae
 * Davidsoniaceae
 * Pittosporaceae
 * Byblidaceae
 * Roridulaceae
 * Bruniaceae
 * subordo Rosineae
 * Rosaceae
 * Neuradaceae
 * Chrysobalanaceae
 * subordo Leguminosineae
 * Connaraceae
 * Leguminosae or Fabaceae
 * Krameriaceae

ordo Hydrostachyales

 * Hydrostachyaceae

ordo Podostemales

 * Podostemaceae

ordo Geraniales

 * subordo Limnanthineae
 * Limnanthaceae
 * subordo Geraniineae
 * Oxalidaceae
 * Geraniaceae
 * Tropaeolaceae
 * Zygophyllaceae
 * Linaceae
 * Erythroxylaceae
 * subordo Euphorbiineae
 * Euphorbiaceae
 * Daphniphyllaceae

ordo Rutales

 * subordo Rutineae
 * Rutaceae
 * Cneoraceae
 * Simaroubaceae
 * Picrodendraceae
 * Burseraceae
 * Meliaceae
 * subordo Malpighiineae
 * Malpighiaceae
 * Trigoniaceae
 * Vochysiaceae
 * subordo Polygalineae
 * Tremandraceae
 * Polygalaceae

ordo Sapindales

 * subordo Coriariineae
 * Coriariaceae
 * subordo Anacardiineae
 * Anacardiaceae
 * subordo Sapindineae
 * Aceraceae
 * Bretschneideraceae
 * Sapindaceae
 * Hippocastanaceae
 * Sabiaceae
 * Melianthaceae
 * Aextoxicaceae
 * subordo Balsamineae
 * Balsaminaceae

ordo Julianiales

 * Julianiaceae

ordo Celastrales

 * subordo Celastrineae
 * Cyrillaceae
 * Pentaphylacaceae
 * Aquifoliaceae
 * Corynocarpaceae
 * Pandaceae
 * Celastraceae
 * Staphyleaceae
 * Hippocrateaceae
 * Stackhousiaceae
 * Salvadoraceae
 * subordo Buxineae
 * Buxaceae
 * subordo Icacinineae
 * Icacinaceae
 * Cardiopteridaceae

ordo Rhamnales

 * Rhamnaceae
 * Vitaceae
 * Leeaceae

ordo Malvales

 * subordo Elaeocarpineae
 * Elaeocarpaceae
 * subordo Sarcolaenineae
 * Sarcolaenaceae
 * subordo Malvineae
 * Tiliaceae
 * Malvaceae
 * Bombacaceae
 * Sterculiaceae
 * subordo Scytopetalineae
 * Scytopetalaceae

ordo Thymelaeales
Note: Sonderothamnus R.Dahlgren, 1968 is posterior to the publication of this work, and Stylapterus A.Juss. was included by G. Bentham & J.D. Hooker in Penaea. Note: the classification of Thymelaeaceae was based on Domke 1934.
 * Family Geissolomataceae
 * Monotypic. It consists of genus Geissoloma Lindl. ex Kunth, and species Geissoloma marginatum, from Cape, South Africa.
 * Family Penaeaceae from South Africa.
 * Tribe Endonemeae
 * Endonema A.Juss.
 * Glischrocolla (Endl.) A.DC.
 * Tribe Penaeeae
 * Brachysiphon A.Juss.
 * Penaea L.
 * Saltera Bullock (syn.:Sarcocolla Kunth)
 * Family Dichapetalaceae
 * Dichapetalum Thouars
 * Gonypetalum Ule (currently syn. of Tapura)
 * Stephanopodium Poepp.
 * Tapura Aubl.
 * Family Thymelaeaceae
 * Subfamily Gonystyloideae (Syn.:Gonystylaceae)
 * Aetoxilon
 * Amyxa
 * Gonystylus
 * Subfamily Aquilarioideae
 * Tribe Microsemmateae
 * Tribe Solmsieae
 * Tribe Octolepideae
 * Tribe Aquilarieae
 * Subfamily Gilgiodaphnoideae (or Synandrodaphnoideae)
 * Monotypic. It consists of genus Gilgiodaphne (currently synonym of Synandrodaphne Gilg), and species Gilgiodaphne paradoxa, syn. of Synandrodaphne paradoxa, from West Africa.
 * Subfamily Thymelaeoideae
 * Tribe Dicranolepideae
 * Tribe Phalerieae
 * Tribe Daphneae
 * Tribe Thymelaeeae (Syn.:Gnidieae)
 * Family Elaeagnaceae
 * Elaeagnus
 * Hippophae
 * Shepherdia

ordo Violales

 * subordo Flacourtiineae
 * Flacourtiaceae
 * Peridiscaceae
 * Violaceae
 * Stachyuraceae
 * Scyphostegiaceae
 * Turneraceae
 * Malesherbiaceae
 * Passifloraceae
 * Achariaceae
 * subordo Cistineae
 * Cistaceae
 * Bixaceae
 * Sphaerosepalaceae
 * Cochlospermaceae
 * subordo Tamaricineae
 * Tamaricaceae
 * Frankeniaceae
 * Elatinaceae
 * subordo Caricineae
 * Caricaceae
 * subordo Loasineae
 * Loasaceae
 * subordo Begoniineae
 * Datiscaceae
 * Begoniaceae

ordo Cucurbitales

 * Cucurbitaceae

ordo Myrtiflorae

 * subordo Myrtineae
 * Lythraceae
 * Trapaceae
 * Crypteroniaceae
 * Myrtaceae
 * Dialypetalanthaceae
 * Sonneratiaceae
 * Punicaceae
 * Lecythidaceae
 * Melastomataceae
 * Rhizophoraceae
 * Combretaceae
 * Onagraceae
 * Oliniaceae
 * Haloragaceae
 * Theligonaceae
 * subordo Hippuridineae
 * Hippuridaceae
 * subordo Cynomoriineae
 * Cynomoriaceae

ordo Umbelliflorae

 * Alangiaceae
 * Nyssaceae
 * Davidiaceae
 * Cornaceae
 * Garryaceae
 * Araliaceae
 * Umbelliferae or Apiaceae

ordo Diapensiales

 * Diapensiaceae

ordo Ericales

 * Clethraceae
 * Pyrolaceae
 * Ericaceae
 * Empetraceae
 * Epacridaceae

ordo Primulales

 * Theophrastaceae
 * Myrsinaceae
 * Primulaceae

ordo Plumbaginales

 * Plumbaginaceae

ordo Ebenales

 * subordo Sapotineae
 * Sapotaceae
 * Sarcospermataceae
 * subordo Ebenineae
 * Ebenaceae
 * Styracaceae
 * Lissocarpaceae
 * Symplocaceae
 * Hoplestigmataceae

ordo Oleales

 * Oleaceae

ordo Gentianales

 * Loganiaceae
 * Desfontainiaceae
 * Gentianaceae
 * Menyanthaceae
 * Apocynaceae
 * Asclepiadaceae
 * Rubiaceae

ordo Tubiflorae

 * subordo Convolvulineae
 * Polemoniaceae
 * Fouquieriaceae
 * Convolvulaceae
 * subordo Boraginineae
 * Hydrophyllaceae
 * Boraginaceae
 * Lennoaceae
 * subordo Verbenineae
 * Verbenaceae
 * Callitrichaceae
 * Labiatae or Lamiaceae
 * subordo Solanineae
 * Nolanaceae
 * Solanaceae
 * Duckeodendraceae
 * Buddlejaceae
 * Scrophulariaceae
 * Globulariaceae
 * Bignoniaceae
 * Henriqueziaceae
 * Acanthaceae
 * Pedaliaceae
 * Martyniaceae
 * Gesneriaceae
 * Columelliaceae
 * Orobanchaceae
 * Lentibulariaceae
 * subordo Myoporineae
 * Myoporaceae
 * subordo Phrymineae
 * Phrymaceae

ordo Plantaginales

 * Plantaginaceae

ordo Dipsacales

 * Caprifoliaceae
 * Adoxaceae
 * Valerianaceae
 * Dipsacaceae

ordo Campanulales

 * Campanulaceae
 * Sphenocleaceae
 * Pentaphragmataceae
 * Goodeniaceae
 * Brunoniaceae
 * Stylidiaceae
 * Calyceraceae
 * Compositae or Asteraceae