198 DrCHOTOMOUS ANALYSIS. 



162. Inflorescence coiled np 163 



Inflorescence straight 166 



163. Flowers red, tube long Loganiaceoz, 81 



Flowers not red 164 



164. Stigmas 5 Plumbaginacece, 96 



Stigmas less than 5 165 



165. Ovary 4-lobed Boraginacece, 87 



Ovary not 4-!obed Hydrophyllacece, 85 



166. Stamens opposite the lobes of the corolla Primulacece, 95 



Stamens alternate with the segments 16T 



167. Stamens 4, with flowers inconspicuous, on a scape Plantaginacecv, 97 



Stamens more than 4, or not on a scape 168 



163. Capsule 3-celled 169 



Capsule 1 — 2-celled 170 



169. Evergreen plants Ilydropliyllacea 1 , 85. Diapensia-. 



Not evergreen plants Polemoniacect', S4 



170. Leaves opposite Grntianacece, 82 / 



Leaves alternate Solanacece, 88 



Monopetalce. Irregular Flowers. 



171. Ovary 4-lobed Lobiatw, 91 



Ovary undivided 172 



172. Fruit drupaceous or nut-like, 2— 4-seerled Yerbenacecv, 92 



Fruit capsular 173 



173. Fruit a ligneous 2-beaked capsule Bignoniacece, S3. Martynia. 



Fruit not ligneous 174 



174. Seeds winged, shrubby vines Bignoniacece, 83 



Seeds without wings, herbaceous 175 



175. Parasitic plants without green foliage Orobamchaceoa, 89 



Plants with green foliage Scrophulariacece, 90. 176 



176. Fruit 2-celled 177 



Fruit more than 2-celled Ericacetc, 72 



Fruit with free central placentae Lent Undo rim ex, 94 



177 Seeds without appendages Scrojy ': ulariaccw, 9:) 



Seeds with hooked appendages Acantiiuceas, 93 



Moiwpdalue. Inferior Ovary. 



178. Carpels solitary CaprifoUacecB, 65 179 



Carpels more than one ISO 



179. Anthers united Compo.sitat, C8 



Anthers distinct Styracece, 73. Valerianacece, 67 



ISO. Anthers united Lobeliacecc, 69 



Anthers distinct 181 



181. Anthers opening by pores Ericacrm, 72 



Anthers opening by slits 182 



182. Stipules between opposite leaves Rubiace-ce, 65. Cinchonacccz. 



Stipules absent ; 



183. Leaves alternate 1S4 



Leaves opposite 1S6 



184 Trees or shrubs Ebenacecc, 74 



Herbaceous plants 185 



185. Twining plants Dioscoreacece, 1 1 8 



Not twining < . Campanulaceat, 70 



186. Leaves in pairs. Valerian acea>,, 67. Caprifoliacea;, 65 



Leaves in whorls 1 S7 



187. Stem square Rubiarea;, C,C> 



Stem round Diozcorea^ea, US 



MONOCOTYLEDONOUS PLANTS. 



183. Flowers having distinct petals 189 



Flowers not having distinct petals 20T 



