ARTIFICIAL TABLE. 249 



122. Flowers in catkins . The Birch Tr. 

 Flowers not in catkins The Euphorbia Tr. 



123. Sepals two . . The Purslane 7>. 

 Sepals more than two . . 124 



124. Carpels solitary, or quite separate . 125 

 Carpels more than one, consolidated . 128 



125. Fruit a legume . . The Pea Tr. 

 Fruit not a legume . . .126 



126. Calyx membranous . The Knotgrass Tr. 

 Calyx firm and herbaceous . . 127 



127. One style to each ovary . The Hose Tr. 

 Three styles to each ovary The Buckwheat Tr. 



128. Placentas parietal . The Passion Flower Tr. 

 Placentas in the axis . . . 129 



129. Calyx membranous and ragged The Elm Tr. 

 Calyx firm and equally lobed . . 130 



130. Calyx valvate . . . 131 

 Calyx imbricated . The Geranium Tr. 



131. Stamens monadelphous . The Sterculia Tr. 

 Stamens distinct . . .132 



132. Stam. 4-5, opposite the petals The Buckthorn Tr. 

 Stamens 8-10 . . The Linden Tr. 



133. Flowers bisexual ; that is, ha\dng both 



stamens and pistil in the same 

 flower . . . .134 



Flowers unisexual ; that is, having stamens 



and pistils in separate flowers . 155 



134. Sepals two . . The Purslane Tr. 

 Sepals more than two . . 135 



