14 



53. Stamens double petals in number 

 Stamens not corresponding in 



number with petals ... 



54. Stamens monadelpbous ; calyx 



valvate 

 Stamens diadelphous 



55. Flowers unisexual 

 Flowers hermaphrodite ... 



56. Calyx with a gland outside ; leaves 



simple ; flowers hermaphrodite 

 Flowers dioecious... 



57. Herb 



Tree or shrub 



58. Sepals 4, valvate ... 

 Sepals united 



59. Calyx 4- or 5-cleft 



Calyx truncate, scarcely toothed ; 



pubescence mealy 



60. Leaves dotted 

 Leaves not dotted 



61. Stamens opening by pores 

 Stamens opening longitudinally ... 



62. Stamens opposite the petals or 



perianth segments 

 Stamens alternate with the petals 



63. Petals very small, concave or 



hood-shaped ... 

 Petals longer than sepals... 



64. Petals alternate with sepals 

 Petals opposite to sepals ... 



65. Petals valvate ; ovary 2- to 6- 



celled ... 

 Petals imbricate ; ovary 1 -celled 



66. Venation palmate... 

 Venation not palmate 



67. Stamens inserted between petals... 

 Stamens slightly perigynous or 



adhering to the petals 



68. Leaves scale-like ... 

 Leaves expanded ... 



69. Petals erect, clawed ; ovary in- 



completely 2- 3-celled ; shrub 



Petals spreading ; ovary 1-ceIled, 



with parietal placentas ; herb 



70. Stamens inserted on a broad fleshy 



disk 



Stamens adhering to the base of 

 the petals 



71. Ovary 5-celled, with 2 ovules in 



each cell 

 Ovary 4-celled, with 1 ovule in 

 each cell 



55. 



72. 



Sterculiaceae (p. 49). 

 Papaveraceae (p. 33). 

 Euphorbiaceae (p. 230). 

 57. 



Malphigiaeeae (p. 53). 

 Olacaceae (p. 58). 

 Grassulaceae (p. 99). 



58. 

 Tiliaeeae (p. 50). 



59. 



60. 



Styracaceae (p. 162). 

 Rutaceae (p. 54). 



61. 

 Ericaceae (p. 154). 

 Anacardiaceae (p. 68). 



63. 

 67. 



Rhamnaceae (p. 62). 



64. 



65. 

 Sabiaceae (p. 68). 



Verbenaceae (p. 201). 



66. 

 238 (p. 24). 

 Myrsinaceae (p. 157). 



68. 



70. 

 Tamarixaceae (p. 41). 

 69. 



Pittosporaceae (p. 37). 



Droseraceae (p. 100). 



Celastraceae (p. 60). 



71. 



Ternstroemiaceae (p. 42). 



Aquifoliaceae (p. 59). 



