14li 



INDEX TO KEY OF FAMILIES AND GENERA 



Sophroiiitis, 122. 

 Sorbiiria, 96. 

 Sorbus, 96. 

 Sorindoia. 93. 

 Sparaxis, 124. 

 Spamiannia, 90. 

 Spartina, 134. 

 Spartium. 94. 

 Spatlielia, 91. 

 Spatliiphylluni. 1.31. 

 Spathodta. 113. 

 Sjiatlioglottis, 122. 

 Spathyema, 131. 

 Specularia, 107. 

 Spergula. 89. 

 Sphaeralcea, 89. 

 Sphierooodon, 110. 

 Sphedaninooarpus, 90. 

 Sphcnopholis, 134. 

 Spigelia. 110. 

 Spilanthos. 106. 

 Spinacia, 116. 

 Spinea. 96. 

 Spiranthes, 122. 

 Spondias, 93. 

 Sporobolus, 134. 

 Spraguea, 89. 

 Sprekelia, 124. 

 Stachys. 116. 

 Stachytarijheta, 1 14. 

 STACHYrRACE.E, 81, 89. 

 Staohyurus, 89. 

 Staokhousia, 92. 

 Stackhousiace.e, 81, 92. 

 Stadmannia, 92. 

 Stangeria, 120. 

 Stanhopea, 123. 

 Stank-ya, 88. 

 Stapplia, 110. 

 Staphylea, 92. 

 StaphyleacE/E, 81, 92. 

 Statire, 109. 

 Stauntonia, 87. 

 Stauropsis, 123. 

 Staurostigma, 1.32. 

 Steironema, 109. 

 Stelis. 123. 

 Stellaria, 89. 

 Stenandrium, 114. 

 Stenanthium, 128. 

 Stenia, 123. 

 Stenocarpus, 117. 

 Stenomesson, 125. 

 StenoirhjTichus, 122. 

 StciiosporniatiuiM. l.il. 

 Stenotaphnim, 133. 

 Stpphanandra, 96. 

 .Stephanotis, 110. 

 Stcrculia, 90. 

 Stehculiace«, 81, 90. 

 Stereospermum, 113. 

 Stembergia, 124. 

 Steven.sonia, 130. 

 Stigmaijhyllon, 90. 

 Stillingia, 119. 

 Stipa. 1.34. 

 Stokesia, 105. 

 Stranvaesia, 96. 

 Stratiotes, 121. 

 Strelitzia, 125. 

 StreptocaljTt, 126. 

 Streptocarpus, 114. 

 Streptopus, 127. 

 StrepUjsolen, 112. 

 Strobilanthc!!, 114. 

 '■•romanthe, 125. 



Strophanthu.*, 111. 

 Stropholirioii, 127. 

 Strychnos, 110. 

 Strypli'X'dciidron, 94. 

 Stiiartia, 89. 

 Slyloplioruin, 87. 

 StyUipliylluni. 98. 

 Styiucace.b, 83, 109. 

 Styra.N, 109. 

 Suksdorfia, 98. 

 Sullivantia, 98. 

 Sutherlandia, 95. 

 Svvainsoiia, 95. 

 Swcitia, 110. 

 Swietcuia, 91. 

 Sypopsi.s, 98. 

 Symbcgonia, 100. 

 Sjinphorioanios, 102. 

 S.Nnnpli.\-aiidra, 108. 

 S>-niphytuni, 111. 



SYMPLOCACE.E, 83, 109. 



S>iiiplooarpus, 131. 

 Symplocos, 109. 

 Synadenium, 119. 

 Synaiidra, 116. 

 Syncarpia, 98. 

 SjTidesmon, 86. 

 Sjnieohanthus, 131. 

 Syngonium, 131. 

 Synthyris, 113. 

 Syringa, 109. 



Tabebuia, 113. 

 Tabernaemontana, 110. 

 Tacca, 124. 

 Taccacejs, 84, 124. 

 Tacsonia, 100. 

 TiEnidia, 101. 

 Tagetes, 106. 

 Tainia, 123. 

 Talauma, 86. 

 Talinum, 89. 

 Tamaricace,e, 81, 89. 

 Tamarindus, 95. 

 Tamarix, 89. 

 Tamonea, 99. 

 Tamu.s, 123. 

 Tanacetum, 107. 

 Tanakaea, 98. 

 Tapiria, 92. 

 Tapiscia, 92. 

 Taraxacum, 107. 

 TAXACE.E, 84, 120. 

 Taxodium, 120. 

 Taxus, 120. 

 Tceonia, 113. 

 Teconiaria, 113. 

 Tecophilaja, 125. 

 Tcctaria, 136. 

 Teedia, 112. 

 Tclaiithora, 116. 

 Telfairea, 100. 

 Ti-lliiiia, 98. 

 Tflopf-a, 117. 

 Tompletoiiia, 94. 

 Tcphrosia, 95. 

 Toniiinalia, 98. 

 Tcrnstrfrniia, 89. 

 TEnNBTna';MiACE^, 81, 89. 

 Testudinaria, 123. 

 Tetraceiitron, 86. 

 Tctradymia, 107. 

 Totragonia, 101. 

 Tftranenia, 112. 

 Totrapanax, 102. 

 Tftrastigiria, 92. 



Tptrathoca, 88. 

 Tourrium. 115. 

 Ti'y.sniannia, 131. 

 Thalia, 125. 

 Tlialictnim, 86. 

 Thaspium, 101. 

 Thea, 89. 

 Thcco.strlc, 123. 

 Tlii'lcspcnna, 106. 

 Tlii'lymitra, 123. 

 Thcobronia, 90. 

 Theophrasta, 109. 

 Thennopsis, 94. 

 Thespesia, 89. 

 Thevetia, 110. 

 Tliibaudia, 108. 

 Thladiaiitha, 100. 

 Thrinax, 129. 

 Thrjijtomene, 98. 

 Thuja, 120. 

 Thujopsis, 120. 

 Thunbergia, 114. 

 Thunia, 122. 

 Thymela;a, 117. 



THYMEL.EACE.E, 84, 117. 



ThjTiius, 116. 

 Thyrsacanthus, 114. 

 Thyrsopteris, 136. 

 Thysaiiotus, 128. 

 Tiarella, 97. 

 Tiljouchina, 99. 

 Tigridia, 124. 

 Tilia, 90. 

 TiLIACE.E, 81, 90. 

 Tillaja, 98. 

 Tillandsia, 126. 

 Tiuantia, 129. 

 Tinnea, 116. 

 Tipuana, 94. 

 Tipularia, 122. 

 Tithonia, 107. 

 Toooca, 99. 

 Toddalia, 91. 

 Todea, 135. 

 Tofieldia, 128. 

 Tolniiea, 97. 

 TolpLs, 107. 

 Toluifera, 95. 

 Toreiiia, 113. 

 Torreya, 120. 

 Tourncfortia, 111. 

 Townsendia, 105. 

 Trachelium, 108. 

 Trachelospermum, 111. 

 Trachyearpus, 129. 

 Tradcscantia, 129. 

 Tragia, 119. 

 Tragopogon, 107. 

 Trapa, 99. 

 TRAPACE.E, 82, 99. 

 Trautvetteria, 86. 

 Trenia, 118. 



Tkemandrace^, 81, 88. 

 Trevesia, 102. 

 Trcwia, 118. 

 Triialysia, 103. 

 Trinhilia, 91. 

 Trirliiiiiuin, 116. 

 Tri.-hioris, 134. 

 Trirho^'aulon, 110. 

 Trichocontnim, 123. 

 Trifhoglottis, 123. 

 Tricholii-na, 1.33. 

 Tricholppis, 107. 

 TrichoinaiK'S, 135. 

 Trif'hopilia, 123. 



Trirh()santhe.s, 100. 

 Trirhosnia, 122. 

 Tricho.'iporuni, 114. 

 Trichostenia, 115. 

 Tricuspidaria, 90. 

 Tricyrtis, 128. 

 Trientalis, 109. 

 Trifolium, 95. 

 Trignnclla, 95. 

 TrigDiiidium, 123. 

 Trilisa, 105. 

 Trillium, 128. 

 Triosteum, 102. 

 Tripetaleia, 108. 

 Triphasia, 91. 

 Triphora, 122. 

 Triplaris, 117. 

 Tripsacum, 133. 

 Tripterygium, 92. 

 Trisetum, 134. 

 TrLstagma, 127. 

 Tristania, 98. 

 Tristellateia, 90. 

 Triteleia, 128. 

 Trithrinax, 129. 

 Triticum, 134. 

 Tritonia, 124. 

 Triumfetta, 90. 

 Tbochodendrace^, 80, 86. 

 Trochodeiidron, 86. 

 Trollius, 86. 



TBOP.EOLACEyE, 81, 90. 



Tropaeolum, 90. 

 Troximon, 107. 

 Tsuga, 120. 

 Tulbaghia, 128. 

 Tulipa, 128. 

 Tunif-a, 89. 

 Tupidanthus, 102. 

 Tupistra, 123. 

 Turuera, 85. 

 TurneracejE, 85. 

 Turpinia, 92. 

 Turraja, 91. 

 Tussilago, 107. 

 Typha, 131. 

 TYPHACE.E, 85, 131. 

 Typhonium, 132. 

 Typhonodorum, 132. 



Ulex, 94. 

 Ullucus, 116. 

 Ulmace.e, 84, 118. 

 Ulmus, 118. 



UMBELUFER.E, 82, 101. 



UmbcUularia, 117. 

 Unguadia. 92. 

 Uniola, 1.34. 

 Unona, 86. 

 Uraria, 94. 

 Urliinia, 98. 

 Urceocharis, 125. 

 Urceolina, 125. 

 Urera, 118. 

 Urginea, 128. 

 Ursinia, 107. 

 Urtica, 118. 



URTICACE.E, 84, 118. 



Utricularia, 113. 

 Uvaria, 86. 

 Uvularia, 128. 



Vaccinium, 108. 

 Vagaria, 125. 

 Valeriana, 103. 

 Valerianace.e, 82, 103. 



