6 
* 
Flowers all imperfect, some stam’uiate, some pistillate. Seeds 
numerous. Lardizabalace^e. 
Flowers partly imperfect, some staminate, some pistillate, some 
perfect. Seeds one or two. Xanthoxyeace.®. p. 82.f 
Flowers all perfect. 
Embryo in avitellus, or sac. Aquatic. CabombaceJe. 
Embryo not in a vitellus. 
Seeds with a mottled albumen. Shrubs. Anonace/e. p. 42. 
Seeds with a homogeneous albumen. Herbs. 
Sepals two. Fumari aceye. p. 49. 
Sepals more than two. Ranunculace.®. p. 33. 
7 . — Placentas covering the dissepiments. Aquatic. 
NYMPHyEACETE. p. 4f>. 
Placentas in the axis. 9 
Placentas parietal. 
Stamens tetradynamous, four long and two short. 
Crucifer.®, p. 51. 
Stamens not tetradynamons . 
Disc small, or none. 8 
Disc large. 
Parts of flower in 4’s. Fruit closed at apex. 
Capp arid ace.®. p. 56. 
Parts of flower not in 4’s. Fruit open at apex. 
ReSEDACE®. p. 57. 
3 . — Albumen of seeds scanty or none. Frankexiace.®. 
Albumen of seeds abundant. 
Fruit fleshy with a central pulp. Flacourtiaceje. 
Fruit without pulp. Juice milky. Papavf.race®. p. 48. 
9 . — Styles more or less united. 10 
Styles separate to the base. 
Calyx valvate in the bud. Vivianace®. 
Calyx imbricate in the bud. 
Petals twisted in the bud. Embryo straight. Linace®. p. 77 
Petals not twisted. Embryo curved. 
Caryopiiyelace®. p. 63. 
