COEOLLIFLOEiE. 



619 



Leaves without stipules. 



Stijrma shaped like an hour-glass. 

 ^Estivation of corolla contorted . 

 Stigma not contracted in the middle 

 like an hour-glass. 

 Estivation of corolla imbricate. 



Placentas pai-ietal . 

 Estivation of corolla valvate. 

 Placentas axile .... 

 4. Carpel solitary. 

 Stamens opposite the lobes or petals of the 



corolla 



Stamens alternate to the lobes of the corolla. 

 Fruit 1 -celled. Stigma sessile 

 Fruit spurioiisly 2-celled, or rarely 4-celled. 



Style capillary 



B. Flowers irregular. 



a. Ocar-p i-lobed 



6. Oraiy not lobed. 



1. Carpel solitary 



2. Carpels two. 

 Fruit hard or nut-like. 



Anthers 1 -celled 



Anthers 2-ceIled. Ovules erect. 

 CoroUa imbricated in jestivation 

 Corolla valvate in Eestivation . 

 Anthers 2-ceUed. Ovules pendulous . 

 Fruit capsular or succtilent. 

 Placentas parietal. 

 Leafless scaly brown parasites . 

 Leafy plants. Seeds with wings 

 Leafy plants. Seeds without wings. 

 Fruit capsular or baccate. Cotyledons 

 minute, radicle long .... 

 Friiit bony or capsular. Cotyledons 

 large, radicle short .... 

 Frtiit woody with a pulpy interior. 

 Cotyledons large, radicle short . 

 Placentas axile. 

 Seeds without wings. 



Albuminous 



Exalbuminons. Seeds attached to 

 hai-d placental processes 

 Seeds winged. Exalbuminons . 

 Placentas free central 



ApocynacecE. 144. 



Gentianacece. 14S. 

 Stilbaceoe. 147. 



Plumbaginacece, 1C2. 

 Salradoracece, 158. 

 Plantaginacece. 163. 

 Labiatce. 168. 

 Sel.-!ginacece. 171. 



Selaginacece. 171. 



Verbenacece. 169. 

 Stilbacece. 147. 

 Myoporacece. 170. 



Orobanchacece. 178. 

 Bignoniacece. 175. 



Gesneracece. 173, 

 Pedal iaceoe. 172. 

 Crescentiacece. 174. 



Scrophulariacece. 177. 



Acanthacece. 176. 

 Bignoniacece. 175. 

 Leniibitlariucece. 179. 



There are certain exceptions to the characters abore given 

 01 the Corolliflor?e and its sub-divi-sions. Thus among the 

 Epigynse, ■we sometimes find polypetalous corollas in Capri- 

 foliacece and Loheliacete, and hence such plants properly belong 

 to Calyciflorse. The ovary is sometimes superior in Goodeniacecs, 

 thus resembling the Epipetalse of the sub-class Corolliflorse, 

 instead of the £pig}'n8e to which they usually belong. In 

 the Hypostaminese, polypetalous species are more or less found 

 in EricacecB, Monotropacece, Fyrolaace, and Epacridaaa, which 

 are therefore in such cases Thalamifloral. In Epacridaceff, 

 also, the stamens sometimes adhere to the corolla, in the same 

 way as in the orders of the Epipetalse of CoroUiflorse. 



Among the Epipetalse we occasionally find plants with poly- 

 petalous corollas, as in Sti/racaccce, OleacecB, Primulacece, 



