Taxonomic List	EGF	ICRA
Tabebuia Gomes ex DC.	6:349	AMERICAN PUBLIC GARDENS ASSOCIATION
Taccarum Brongn. ex Schott	-	INTERNATIONAL AROID SOCIETY (I.A.S.)
Taiwania Hayata	-	ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Talisia Aubl.	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Tamarindus L.	4:479	AMERICAN PUBLIC GARDENS ASSOCIATION
Tamarix L.	5:270	AMERICAN PUBLIC GARDENS ASSOCIATION
Tapiscia Oliv.	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Tasmannia R. Br. ex DC.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Taxaceae Gray	-	ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Taxodiaceae Saporta	-	ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Taxodium Rich.	1:77	ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Taxus L.	1:105	ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Tecoma Juss.	6:346	AMERICAN PUBLIC GARDENS ASSOCIATION
Tecomanthe Baill.	6:352	AMERICAN PUBLIC GARDENS ASSOCIATION
Tecomaria (Endl.) Spach = Tecoma Juss	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Tecophilaea Bertero ex Colla	1:326	ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Teinostachyum Munro	-	INTERNATIONAL CULTIVAR REGISTRATION CENTER FOR BAMBOOS (POACEAE, TRIBE BAMBUSEAE)
Teline Medik. = Genista L.	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Telopea R. Br.	3:113	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Templetonia R. Br.	4:529	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Temu O. Berg = Blepharocalyx O. Berg	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Tengia Chun	-	THE GESNERIAD SOCIETY, INC.
Tephrosia Pers.	4:487	AMERICAN PUBLIC GARDENS ASSOCIATION
Terminalia L.	5:338	AMERICAN PUBLIC GARDENS ASSOCIATION
Ternstroemia Mutis ex L. f.	4:42	AMERICAN PUBLIC GARDENS ASSOCIATION
Tersonia Moq.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Testudinaria Salisb. = Dioscorea L	-	ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Tetracarpaea Hook.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Tetracentron Oliv.	3:324	AMERICAN PUBLIC GARDENS ASSOCIATION
Tetraclinis Mast.	-	ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Tetradenia Benth.	6:229	AMERICAN PUBLIC GARDENS ASSOCIATION
Tetradium Lour.	5:108	AMERICAN PUBLIC GARDENS ASSOCIATION
Tetrapanax (K. Koch) K. Koch	5:389	AMERICAN PUBLIC GARDENS ASSOCIATION
Tetraphyllum Griff. ex C. B. Clarke	-	THE GESNERIAD SOCIETY, INC.
Tetrarrhena R. Br.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Tetrastigma (Miq.) Planch.	5:201	AMERICAN PUBLIC GARDENS ASSOCIATION
Tetrasynandra Perkins	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Tetratheca Sm.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Thamnocalamus Munro	-	INTERNATIONAL CULTIVAR REGISTRATION CENTER FOR BAMBOOS (POACEAE, TRIBE BAMBUSEAE)
Thamnocharis W. T. Wang	-	THE GESNERIAD SOCIETY, INC.
Thaumastochloa C. E. Hubb.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Thea L. = Camellia L	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Thellungia Stapf	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Themeda Forssk.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Theobroma L.	5:235	AMERICAN PUBLIC GARDENS ASSOCIATION
Theophrasta L.	5:508	AMERICAN PUBLIC GARDENS ASSOCIATION
Theriophonum Blume	-	INTERNATIONAL AROID SOCIETY (I.A.S.)
Thespidium Sol. ex Corrêa	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Thiseltonia Hemsl.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Thomasia J. Gay	5:235	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Thomsonia Wall. = Amorphophallus Blume ex Decne.	-	INTERNATIONAL AROID SOCIETY (I.A.S.)
Thozetia F. Muell. ex Benth.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Threlkeldia R. Br.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Thryptomene Endl.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Thyrsostachys Gamble	-	INTERNATIONAL CULTIVAR REGISTRATION CENTER FOR BAMBOOS (POACEAE, TRIBE BAMBUSEAE)
Thuja L.	1:80	ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Thujopsis Siebold & Zucc. ex Endl.	1:80	ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Thuranthos C. H. Wright	-	ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Thymus L.	6:212	EASTER, MRS MARGARET
Thyridolepis S. T. Blake	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Thysanotus R. Br.	1:132	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Thyrsanthemum Pichon	-	TRADESCANTIA HUB
Tibouchina Aubl.	5:330	AMERICAN PUBLIC GARDENS ASSOCIATION
Tieghemella Pierre	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Tigridia Juss.	1:359	ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Tilia L.	5:205	LYCÉE TECHNIQUE ETTELBRUCK LTETT
Tillandsia L.	2:14	BROMELIAD SOCIETY INTERNATIONAL (B.S.I)
Tilia Tourn. ex L.	-	LYCÉE TECHNIQUE AGRICOLE
Tinantia Scheidw.	-	TRADESCANTIA HUB
Tipuana (Benth.) Benth.	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Titanotrichum Soler.	6:404	THE GESNERIAD SOCIETY, INC.
Tococa Aubl.	5:334	AMERICAN PUBLIC GARDENS ASSOCIATION
Toona (Endl.) M. Roem.	5:118	AMERICAN PUBLIC GARDENS ASSOCIATION
Toronia L. A. S. Johnson & B. G. Briggs	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Torreya Arn.	1:106	ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Toxanthes Turcz.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Toxicodendron Mill.	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Trachelospermum Lem.	6:43	AMERICAN PUBLIC GARDENS ASSOCIATION
Trachymene Rudge	5:395	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Trachystigma C. B. Clarke = Streptocarpus Lindl.	-	THE GESNERIAD SOCIETY, INC.
Trachystylis S. T. Blake	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Tradescantia L.	-	TRADESCANTIA HUB
Tradescantia Ruppius ex L.	-	TRADESCANTIA HUB
Treculia Decne. ex Trécul	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Trema Lour.	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Tremacron Craib	-	THE GESNERIAD SOCIETY, INC.
Tremandra R. Br. ex DC.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Trevesia Vis.	5:375	AMERICAN PUBLIC GARDENS ASSOCIATION
Trianthema L.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Tribonanthes Endl.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Tribulopsis R. Br.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Triceratella Brenan	-	TRADESCANTIA HUB
Tricarpelema J.K.Morton	-	TRADESCANTIA HUB
Trichantha Hook.	-	THE GESNERIAD SOCIETY, INC.
Trichilia P. Browne	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Trichostigma A. Rich.	3:131	AMERICAN PUBLIC GARDENS ASSOCIATION
Tricoryne R. Br.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Tricostularia Nees ex Lehm.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Tricuspidaria Ruiz & Pav. = Crinodendron Molina	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Trifurcia Herb. = Herbertia Sweet	-	ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Triglochin L.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Trimezia Salisb. ex Herb.	1:358	ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Triodia R. Br.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Tripetaleia Siebold & Zucc.	5:477	AMERICAN PUBLIC GARDENS ASSOCIATION
Triphasia Lour.	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Triphyophyllum Airy Shaw	-	INTERNATIONAL CARNIVOROUS PLANT SOCIETY (I.C.P.S.)
Triplochiton K. Schum.	5:236	AMERICAN PUBLIC GARDENS ASSOCIATION
Tripogandra Raf.	-	TRADESCANTIA HUB
Tripterygium Hook. f.	5:179	AMERICAN PUBLIC GARDENS ASSOCIATION
Trisepalum C. B. Clarke	-	THE GESNERIAD SOCIETY, INC.
Tristagma Poepp.	-	ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Tristania R. Br.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Tristaniopsis Brongn. & Gris	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Tristellateia Thouars	5:120	AMERICAN PUBLIC GARDENS ASSOCIATION
Triteleia Douglas ex Lindl.	1:248	ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Trithuria Hook. f.	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Tritonia Ker Gawl.	1:387	ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Triunia L. A. S. Johnson & B. G. Briggs	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Trochetia DC.	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Trochetiopsis Marais	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Trochocarpa R. Br.	5:507	AMERICAN PUBLIC GARDENS ASSOCIATION
Trochodendron Siebold & Zucc.	3:324	AMERICAN PUBLIC GARDENS ASSOCIATION
Trymalium Fenzl	-	AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Tsuga Carrière	1:94	ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Tsusiophyllum Maxim.	5:476	AMERICAN PUBLIC GARDENS ASSOCIATION
Tulbaghia L.	1:232	ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Tulipa L.	1:179	ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Tulista Raf.	-	HAWORTHIA SOCIETY OF JAPAN
Tulworthia G.D. Rowley	-	HAWORTHIA SOCIETY OF JAPAN
Tulworthiopsis G.D. Rowley	-	HAWORTHIA SOCIETY OF JAPAN
Turnera L.	5:257	AMERICAN PUBLIC GARDENS ASSOCIATION
Turraea L.	5:118	AMERICAN PUBLIC GARDENS ASSOCIATION
Turraeanthus Baill.	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Tutcheria Dunn	-	AMERICAN PUBLIC GARDENS ASSOCIATION
Tylopsacas Leeuwenb.	-	THE GESNERIAD SOCIETY, INC.
Typhonium Schott	-	INTERNATIONAL AROID SOCIETY (I.A.S.)
Typhonodorum Schott	-	INTERNATIONAL AROID SOCIETY (I.A.S.)

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