ANALYTICAL METHOD. 



79 



20. Flowers unisexual EUPHORBIACE,E. 

 Flowers hermaphrodite . .21 



21. Ovary one-celled . PORTULACACE^:. 

 Ovary wit<h more cells than one 



ClSTACBLE. 



22. Calyx enlarged and irregular 



DlPTERACE^E. 



Calyx not enlarged . .23 



23. Stamens monadelphous MALVACEAE. 

 Stamens distinct . TILLAGES. 



24. Carpels disunited or solitary . 25 

 Carpels consolidated . . 30 



25. Carpels plunged in a tabular disk 



NELUMBIACE^E. 

 Carpels clear of the disk . 26 



26. Stamens perigynous . ROSACES. 

 Stamens hypogynous . . 27 



27. Carpel solitary . ANACARDIACE.E. 

 Carpels several . . .28 



28. Stamens polyadelphous HYPERICACE^E. 

 Stamens free . . .29 



29. Herbs . . RANUNCULACE^E. 

 Trees or Shrubs . ANONACE.E. 



30. Placentas in the axis . .31 

 Placentas parietal . . 34 

 Placentas dissepimental 



NYMPH-EACE.E. 



31. Stigma large, umbrella-shaped 



SARRACENIACE^E. 

 Stigma simple . ... .32 



32. Sepals 2 . PORTULACACE.S. 

 Sepals more than 2 v . . 33 

 Sepals united into a tube LYTHRACEJE. 



33. Petals flat, seeds few, leaves 

 leathery . . . CLUSIACE-E. 



Petals crumpled, seeds numerous, 

 leaves membranous . CISTACE..E. 



Petals flat, stamens monadel- 

 phous . . . HUMIRIACE.33. 



34. Placentas spread over the lining 



of the fruit . . FLACOURTIACE.E. 



Placentas in lines . . 35 



35. Ovary stalked . CAPPARIDACE.E. 

 Ovary sessile . PAPAVERACE.E. 



36. Ovary more or less inferior . 37 

 Ovary quite superior . . 55 



37. Leaves with stipules . . 38 

 Leaves without stipules . .41 



38. Flowers unisexual . BEGONIACE^E. 

 Flowers hermaphrodite . . 39 



39. Placentas parietal . HOMALIACE.E. 

 Placentas in the axis . . 40 



40. Calyx valvate, stamens opposite 



the petals . . RHAMNACE.E. 



Calyx imbricate, stamens alternate 

 with petals . HAMAMELACE.S. 



41. Placentas parietal . . 42 

 Placentas axile . . .43 



42. Flowers unisexual CUCURBITACEJE. 

 Flowers hermaphr. or polyg. 



GROSSULACE.E. 



43. Disk double . . APIACE.E. 

 Disk simple . . .44 



44. Seeds few , . .45 

 Seeds numerous . .51 



45. Carpels solitary . . .46 

 Carpels several . . .48 



46. Parasites on trees . LORANTHACEJE. 

 Root plants . . .47 



47. Leaves balsamic, acrid 



ANACARDIACE^E. 

 Leaves insipid . COMBRETACE^E. 



48. Calyx valvate . . .49 

 Calyx imbricated . . 50 



49. Stamens opp. petals . RHAMNACE^E. 

 Stamens altern. petals . CORNACE^E. 



50. Anthers curved downwards 



MEMECYLACE^E. 

 Anthers erect . BRUNIACE.E. 



51. Leaves dotted . MYRTACE.E. 

 Leaves not dotted . . 52 



52. Anthers curved downwards 



MELASTOMACE^E. 

 Anthers erect . . .53 



53. Flowers tetramerous . ONAGRACE^E. 

 Flowers not tetramerous . 54 



54. Petals always distinct 



SAXIFRAGACE^:. 

 Petals at first united into a tube 



ESCALLONIACRS. 



55. Leaves with stipules . . 56 

 Leaves without stipules . 81 



56. Carpels disunited . .57 

 Carpels consolidated . . 59 



57. Anther valves recurved 



BERBERACE.E. 

 Anther valves straight . .58 



58. Fruit leguminous . FABACE^E. 

 Fruit drupaceous or capsular 



ROSACES. 



