DICUOTOMOUS ANALYSIS. 197 



ACHLAMYDEOUS PLANTS. 



183. Leaves with stipnles f.' -."4 



Leaves without stipules 137 



134. Ovules numerous Amentaceoi, 115 — Sub-order Salianece. 



Ovules few 133 



135. Carpels 3 Eup7iorbiace<v., 103 



Carpels single 136 



13G. Small shrub A mentacecu, 115— Sub-order Myricacecc. 



Large trees Amentaceoc, 115— Sub-order FlatanecB. 



137. Flowers havinii only stamens or pistils 140 



Flowers perfect 142 



140. Ovules naked ; fruit a cone ConifercR. 



Ovules covered 141 



141. Shrubs Amentacem 115 — Sub-order Myricaoecc, 



Aquatic plants J*odo8teinaceoe, 112. Callitrichacece, 113 



142. Flowers in dense terminal spikes Saururncecp, 114 



Flowers solitary or in panicles Podostomacece, 1 12 



MONOPETALOUS PLANTS. 



143. Ovnry superior 144 



Ovary inferior « 178 



144. Flowers regular 145 



Flowers irregular 1~1 



Monopetalce. Regular Floivers. 



145. Ovary 4-lobed Borarjinacem, S7 



Ovary somewhat 2-lobed or spherical Scrophulariaceoc, 90 



Ovary not lobed :.. 146 



146. Anthers opening by pores 147 



Anthers opening by slits 148 



147. Ovary 2-celled Solnnacecp, 88 



Ovary more than 2-celled Ericacem, 12 



148. Trees, shrubs, undershrubs, or with evergreen foliage 149 



Herbaceous plants 1">5 



149. Twining plants Loganiaceo', 81. Gelsemhium. 



Plants not twining 150 



150. Stamens 2 Oleocece, 78 



Stamens more than 2 151 



151. Flowers dioecious or polygamous 152 



Flowers perfect 153 



152. Fruit a large berry 8— 12-seeded Ehpuncem, 74 



Fruit a small berry 3 — 6-seeded Aqui/oliacecc, 75 



153. Stamens somewhat monadelphous Sti/racew, 73 



Stamens distinct Vaecinacea; 71 154 



154. Flowers conspicuous Ericacecp, 72 



Flowers inconspicuous SapoUiceii, 76 



155. Plants without g|^en herbage 156 



Plants with green herbage 157 



156. Parasitic vines Convolvulacem, 86. Cuecuta. 



Erect plants Ericaceae, 72. Monotropa. 



157. Twining plants 158 



Plants not twining 160 



158. Fruit follicular 159 



Fruit capsular Convolriducea;, 86 



159. Flowers in umbels AscUpiadacece, 79. Gonolohun. 



Flowers in corymbose racemes Apocynacem, 80. Echites. 



160. Fruit follicular 161 



Fruit not follicular It's 



161. Flowers in umbels Asclepindacecr, 79 



Flowers not in umbels Apocynacei^ 80 



