ANALYTICAL KEY. 



Calyx persistent after flowering. 



Ovary 8 - 18-celled : ovules many, on the partitions. 22 

 Ovary 5-celled : ovules many: placentas in the axis. 23 SARRACENIACE^. 

 Ovary 1 -celled or partly 3-celled : placentae parietal. 45 Ci STAGED. 

 Ovary 1-celled, compound (stigmas 3 or more) ; the 



placenta central : sepals 2, deciduous. . 63 PORTULACAOE^E. 

 Ovary 1-celled, simple, with one parietal placenta. 



Herb, with two peltate leaves and one large flower. 19 BERBERIDACE.ZE. 

 Herbs, with palmately dissected or twice or thrice ter- 



nately compound leaves. ... 2 (30) RANUNCULACE.S:. 



Shrubs or trees, with twice or thrice pinnate leaves or 



phyllodia in their place. Acacia, &c. (43) LEGUMINOS.E. 



* * Stamens united with the base of the (hypogynous) petals. 

 Calyx valvate in the bud : stamens monadelphous : an- 

 thers kidney-shaped, 1-celled. ... 65 (36) MALVACE^S. 

 Calyx imbricated in the bud: anthers 2-celled. 70 (38) CAMELLIACE.E. 



* * # Stamens and petals inserted on the calyx (perigynous). 

 Stamens just twice as many as the petals, 12, 14, or 16. 



Pistils as many as the petals, separate: leaves fleshy. (53) CRASSULACE-E. 



Pistil only one, 1 -2-celled, many-seeded. . 127 (50) LYTHRACE^B. 



Stamens more than twice as many as the 5 petals (in 



natural flowers) : leaves alternate, with stipules. 110 (45) ROSACES. 

 Stamens (short) and petals both indefinitely numerous: 

 leaves opposite : pistils many, enclosed in a hol- 

 low receptacle 116 (49) CALYCANTHACEJB. 



2. Calyx more or less coherent with the surface of the (compound) ovary; i.e. the 



ovary inferior or partly so. 

 Ovary several-celled, the cells in two sets, one above the 



other. Tree, with showy scarlet flowers. Punica. (49) MYRTACE^E. 

 Ovary 2 - 5-celled. 



Leaves punctate with pellucid dots under a lens. (49) MYRTACEJE. 



Leaves not punctate with pellucid dots, 



With stipules, not unequal-sided : fruit fleshy. 110 (45) ROSACEJE. 



With stipules, strikingly unequal-sided : ovary 3-angled. (53) BEGONIACEJS. 

 Without stipules, 



Alternate, not fleshy : stamens adhering to the bases 



of the petals. Shrubs 265 STYRACACE^E. 



Opposite, not fleshy: stamens not on the petals. 



Shrubs. Philadelphus. 141 (54) SAXIFRAGACE^E. 



Opposite or alternate, thickened and fleshy : petals 



numerous and narrow. . . (51) MESEMBRYANTHEMACE^E. 

 Ovary 10-30-celled: ovules many, covering the partitions : 



petals very numerous ; aquatic. ... 22 NYMPH.EACE2E. 



