516 



SYSTEMATIC BOTANY. 



Leaves dotted. Seeds amygdaloid Aurantiacece. 50. 

 Leaves without dots. Seeds minute Brexiacece, 54. 

 Carpels less than 4. 



Seeds comose Tamaricacete, 24. 



Seeds not comose. 

 Ovules pendulous. Petals twisted 



in aestivation Canellacece. 53. 



Ovules ascending, or horizontal. 



Petals imbricated in aestivation . Pittosporacee. .')2. 

 Ovules pendulous. Petals imbri- 

 cated in aestivation . . . Cyrillacece. 57. 

 Calyx valvate, or but very slightly imbri- 

 cated. 

 Anthers opening by pores . . . Tremandracece. 43. 

 Anthers with longitudinal dehiscence. 

 Calyx generally enlarging with the fruit Olacacea. 55. 

 Calyx small, not enlarging with the 



fruit Icacinacece. 56. 



Stamens more or less perigynous. 

 Flowers irregular. Ovules pendulous Tropceoiacece. 69. 

 Flowers regular. Ovules erect . . Limnanthacece. 70. 



B. Leaves with stipules. 



a. Carpels distinct, or solitary. 



Anthers with recurved valves. Carpel solitary Berberidaceee, 8. 

 Carpels several Coriarieacece. 62. 



b. Carpels wholly combined; with more placentas 



than one. 

 Placentas parietal. 

 Leaves with circinate vernation . . . Droseracea:. 22. 

 Leaves witli involute vernation. Anthers 



crested, and turned inwards . . . Violacecs. 20. 

 Stamens opposite to the petals. Anthers 

 naked, and turned outwards . . . Sauvagesiacece. 21. 

 Placentas axile. 

 Styles distinct to the base. 

 Calyx much imbricated, in an irregular 

 l)roken whorl. 



Petals small, sessile Elatinaceee. 25. 



Calyx but little imbricated, in a complete 

 whorl. 

 Petals conspicuous, stalked . . . Malpi^hiacece. 46. 



Calyx valvate Tiliacece. 31. 



Styles' more or less combined.Fruit gynobasic. 

 Gynobase fleshy .... , . Ochnacece. 61. 

 Gynobase dry. 

 Leaves regularly opposite . . . Zygophyllacea. 64. 

 Leaves more or less alternate. 



Fruit beaked , . . . . Geraniaceee. 68. 



J"niit not beaked Oxalidacece. 66. 



Styles more or less combined. Fruit not gy- 

 nobasic. 

 Calyx much imbricated, in an irregular 

 broken whorl. 

 Flowers surrounded by an involucre . Chhsnacece, 33. 

 Flowers not surrounded by an involucre Sapindacece. 40. 

 Calyx but little imbricated, in a complete 

 whorl. 

 Stamens 3. Sepals and petals pentamerous Hippocrateaccce. 45. 

 Stamens more than 3. 

 Calyx Rlandular. Petate without appen- 

 dages Malpighiacete, 4G. 



Calyx not glandular. Petals with ap- 



dagos Erythroxylacece . 47. 



Calyx valvate. 

 Stamens united by their filaments into a 

 column Sterculiacett. 29. 



