146 



INDEX TO KEY OF FAMILIES AND GENERA 



Sophronitis, 122. 

 Sorbaria, 96. 

 Sorbus, 96. 

 Sorindeia, 93. 

 Sparaxis, 124. 

 Sparmannia, 90. 

 Spartina, 134. 

 Spartium, 94. 

 Spathelia, 91. 

 Spathiphyllum, 131. 

 Spathodca, 113. 

 Spathoglottis, 122. 

 Spathyema, 131. 

 Specularia, 107. 

 Spergula, 89. 

 Sphseralcea, 89. 

 Sphserocodon, 110. 

 Sphedamnocarpus, 90. 

 Sphenopholis, 134. 

 Spigelia, 110. 

 Spilanthes, 106. 

 Spinacia, 116. 

 Spiraea, 96. 

 Spiranthes, 122. 

 Spondias, 93. 

 Sporobolus, 134. 

 Spraguea, 89. 

 Sprekelia, 124. 

 Stachys, 116. 

 Stachytarpheta, 114. 

 STACHYURACE^E, 81, 89. 

 Stachyurus, 89. 

 Stackhousia, 92. 

 STACKHOUSIACE.S:, 81, 92. 

 Stadmannia, 92. 

 Stangeria, 120. 

 Stanhopea, 123. 

 Stanleya, 88. 

 Stapelia, 110. 

 Staphylea, 92. 

 STAPHYLEACE.S:, 81, 92. 

 Statice, 109. 

 Stauntonia, 87. 

 Stauropsis, 123. 

 Staurostigma, 132. 

 Steironema, 109. 

 Stelis, 123. 

 Stellaria, 89. 

 Stenandrium, 114. 

 Stenanthium, 128. 

 Stenia, 123. 

 Stenocarpus, 117. 

 Stenomesson, 125. 

 Stenorrhynchus, 122. 

 Stenospernmtn i 131. 

 Stenotaphrum, 133. 

 Stephanandra, 96. 

 Stephanotis, 110. 

 Sterculia, 90. 

 STERCULIACE^E, 81, 90. 

 Stereospermum, 113. 

 Sternbergia, 124. 

 Stevensonia, 130. 

 Stigmaphyllon, 90. 

 Stillingia, 119. 

 Stipa, 134. 

 Stokesia, 105. 

 Stranvsesia, 96. 

 Stratiotes, 121. 

 Strelitzia, 125. 

 Streptocalyx, 126. 

 Streptocarpus, 114. 

 Streptopus, 127. 

 Streptosolen, 112. 

 Strobilanthes, 114. 

 Stromanthe, 125. 



Trichosauthes, 100. 

 Trichosma, 122. 

 Trichosporum, 114. 

 Tridiostema, 115. 

 Tricuspidaria, 90. 

 Tricyrtis, 128. 

 Trientalis, 109. 

 Trifolium, 95. 

 Trigonella, 95. 

 Trigonidium, 123. 

 Trilisa, 105. 

 Trillium, 128. 

 Triosteum, 102. 

 Tripetaleia, 108. 

 Triphasia, 91. 

 Triphora, 122. 

 Triplaris, 117. 

 Tripsacum, 133. 

 Tripterygium, 92. 

 Trisetum, 134. 

 Tristagma, 127. 

 Tristania, 98. 

 Tristellatcia, 90. 

 Triteleia, 128. 

 Trithrinax, 129. 

 Triticum, 134. 

 Tritonia, 124. 

 Triumfetta, 90. 



TROCHODENDRACEjE, 80, 86. 



Trochodendron, 86. 

 Trollius, 86. 

 THOP.EOLACE.E, 81, 90. 

 Tropreolum, 90. 

 Troximon, 107. 

 Tsuga, 120. 

 Tulbaghia, 128. 

 Tulipa, 128. 

 Tunica, 89. 

 Tupidanthus, 102. 

 Tupistra, 123. 

 Turnera, 85. 



TURNERACE, 85. 



Turpinia, 92. 

 Turrsea, 91. 

 Tussilago, 107. 

 Typha, 131. 

 TYPHACE.E, 85, 131. 

 Typhonium, 132. 

 Typhonodorum, 132. 



Ulex, 94. 

 Ullucus, 116. 

 ULMACE.E, 84, 118. 

 Ulmus, 118. 

 UMBELLIFER*;, 82, 101. 

 Umbellularia, 117. 

 Ungnadia, 92. 

 Uniola, 134. 

 Unona, 86. 

 Uraria, 94. 

 Urbinia, 98. 

 Urceocharis, 125. 

 Urceolina, 125. 

 Urera, 118. 

 Urginea, 128. 

 Ursinia, 107. 

 Urtica, 118. 

 UBTICACE.E, 84, 118. 

 Utricularia, 113. 

 Uvaria, 86. 

 Uvularia, 128. 



Vaccinium, 108. 

 Vagaria, 125. 

 Valeriana, 103. 

 VALERIANACE*:, 82, 103. 



