Leaves simple, pinnately veined, non punctate. 



Fruit a globose or lobed pod; seeds arillate. Celastbaceae, 38. 

 Fruit a berry-like drupe. Ilicineae, 29. 



Ovules and seeds several to many in each cell. 



Stipules caducous; leaves opposite, compound. Stapi-ii'leaceae, 31 



Stipules wanting 1 when the leaves are opposite. 

 Stamens 10, monodelphous below; leaflets 3, obcordate. 



OXALIDACEAE, 27. 



Stamens distinct, hypogynous. Caeyophyllaceae, 19. 



Stamens distinct, perigynous. 

 Styles usually 2, simple, sometimes cohering. Saxifeagaceae, 51. 

 Style 1; capsule often 1- celled. Lytheaceae, 55. 



* * Calyx-tube w >re or less adherent to the ovary. 

 Ours climbing annuals, with C-forked tendrils. . Cucubbitaceae, 59. 



Mostly erect herbs, not tendril bearing. 



Ovules and seeds two to many in each cell of the ovary. 

 Ovary 1-celled; ovules many, basal. Poetulacaceae, 21. 



Ovary 1-celled; placentae 2 or 3, parietal. Saxifeagaceae, 51. 



Ovary 2-several-celled. 

 Anthers dehiscing by apical pores; style 1. Melastomaceae, 55. 



Anthers not dehiscing by apical pores. 



Stamens inserted on a disk which fills the bottom of the calyx. 



Celasibaceae, 28. 

 Stamens inserted on the calyx. 



Stamens 4 or 8, rarely 5; style 1. Onagbaceae, 56. 



Stamens 5 or 10; styles 2 or 3, distinct. Saxifeagaceae, 51. 



Ovules and seeds solitary in each cell of the ovary. 



Stamens 2 or 8; styles 1; stigma 2-4-lobed; herbs. Onagbaceae, 56. 

 Stamens 4 or 8; styles or stigmas 4; aquatics. Haloeagidaceae, 54. 

 Stamens 8, but 4 of them sterile, scale-like, styles 2; small tree. 



Hamamelidaceae, 54. 

 Stamens 4; style and stigma 1; small shrubs. Coenaoeae, 65. 



Stamens 5; flowers umbellate, rarely capitate. 

 Fruit dry, consisting of 2 coherent carpels; styles 2. 



Umbellifebae, 60. 

 Fruit a 2-5-celled drupe; styles 2-5. Abaliaceae, 64. 



Gamopetalous forms in polypetalous families. 

 Forms which have their petals more or less united into one piece. 

 * Stamens more numerous than the lobes of the corolla. 

 Ovary 1-celled, with one parietal placenta. 

 The upper petal enclosing the others in the bud. Papilionaceae, 33. 

 The upper petal enclosed by the lateral in the bud. 



Caesalpinaceae, 42. 



Ovary 2-celled, 2-ovuled. Polygalaceae, 32. 



Ovary 3-many-celled. 



Stamens 10, hypogynous, united below; styles 5. Oxalidaceae, 27. 



Stamens many, monodelphous; styles many. Malvaceae, 23. 



* * Stamctix as many as the lobes of the ovary. 



Annuals, climbing, tendril bearing. Cucuebitaceae, 59. 



Shrub, with alternate simple I aves. Ilicinbae 29. 



