190 NATURAL ORDER OF PLANTS. 



85. RUTALES. Flowers monodichlamydeous, symmetrical ; placentae axile ; calyx and corolla imbri 

 cated, if prespnt ; stamens definite ; embryo with little or no albumen. (Occasionally $ $). 

 236 Gen.; \2MSp. 



Natural Orders. 170. Aurantiaceae, or Citronworts. 171. Amyridaceae, or Amyrids. 172. 

 Cedrelacea, orCedrelads. 173. Meliacese, or Meliads. 174. Anacardiaceae, or Anacards, or 

 Terebinths. 175. Connaraceae, or Connarads. 176. Rutaceae, or llueworts. 177. Xan- 

 thoxylaceae, or Xanthoxyls. 178. Ochnacea3, or Ochnads. 179. Simarubaceae, or Quaa- 

 siads. 180. Zygophyllaceae, or Bean-capers. 181. Elatmaceae, or Water-peppers. 182. 

 Podostemaceae, or Podostemads. 



36. GBRANIALES. Flowers monodichlamydeous, symmetrical ; placentae axile ; calyx imbricated ; 

 corolla twisted ; stamens definite ; embryo with little or no albumen. 19 Gen. ; 1033 Sp. 



Natural Orders. 183. Linaceae, or Flaxworts. 184. Chlaenaceae, or Chlenads. 185. Oxali- 

 daceae, or Oxalids. 186. Balsaininaceae, or Balsams. 187. Geraniaceae, or Cranesbills. 



S7. SILENALES. Flowers monodichlamydeous ; placenta free, central ; embryo external, curved 

 round a little mealy albumen ; carpel? more than one, completely combined into a compound 

 fruit. (Some slightly peryginous, others 9.) 118 Gen. ; 1829 Sp. 



Natural Orders. 188. Caryophyllacere, or Silenads. 189. Illecebraceas, or Knotworts. 190. i 

 Portulaceae, or Purslanes. 191. Polygoiiaceae, or Buckwheats. 



38. CHENOPODALES. Flowers monochlamydeous ; placentae free, central ; embryo external, either 



curved round or applied to the surface of a little mealy or horny albumen ; carpels solitary, or i 

 if more than one, distinct. (Some slightly perigynous, others $). 125 Gen. : 803 Sp. 



Natural Orders. 192. Nyctaginaceae, or Nyctagos. 193. Phytolaccaceae, or Phytolaccads. ; 

 194. Amarantaceae, or Amaranths. 195. Chenopodiaceae, or Chenopods. 



89. PIPERALES. Flowers achlamydeous ; embryo minute, on the outside of a large quantity of 

 mealy albumen. (Occasionally 9). 27 Gen.; 622 Sp. 



Natural Orders. 196. Piperaceae, or Pepperworts. 197. Chloranthaccse. or Chloranths. 

 198. Saururaceae, or Saururads. 



SUB-CLASS III. PERIGYNOUS EXOOENS. 



Flowers $ , or <J 9 ; stamens growing to the side of either the calyx or the corolla ; ovary superior, 



or nearly so. 



40. FICOIDAI.ES. Flowers monodichlamydeous ; placentae central or axile; corolla, if present, poly. 



petalous; embryo external^ and curved round a small quantity of mealy albumen 24' Gen 

 466 Sp. 



Natural Orders. 199. Basellaceae, or Basellads. 200. Mesembryaceae, or Ficoids. 201. Tetra- 

 goniaceae, or Aizoons. 202. Scleranthaceae, or Scleranths. 



41. DAPHX ALES. Flowers monochlamydeous; carpel solitary; embryo amygdaloid, without albumen. 



Natural Orders. 203. Thymelaceae, C/ Daphnads. 204. Proteacese, or Proteads 205 Lau 

 racese, or Laurels. 206. Cassythaceae, or Dodder-laurels. 



42. ROSALES. Flowers monodichlamydeous ; carpels more or less distinct : placentse sutural seeds 



definite ; corolla if present, polypetalous ; embryo amygdaloid, with little or no albumen. 

 551 Gen.; /491 Sp. 



Natural Orders.-207. Calycanthaceae, or Calycanths. 208. Chrysobalanaceaa, or Chrysoba- 

 lans. 209. Fabaceae, or Leguminous plants. 210. Drupaceje, or Almondworts. 211. 

 Pomaceae, or Appleworts. 212. Sanguisorbaceae, or Sanguisorbs. 213. Rosaceas, or 



43. SAXIFRAOALES. Flowers monodichlamydeous ; carpels consolidated ; placentae sutural or axile 



seeds 00; corolla, if present, polypetalous; embryo taper, with a long radicle, and a little or 

 no albumen, 89 Gen.; 761 Sp. 



Natural Orders. 214. Saxifrages?, or Saxifrages. 215. Hydrangeaoese, or Hydrangads 

 ia Cunoniad8 - 217 ' B ^^ceo3, or Brexiads. 218. Lythracei, or 



