bar INTRODUCTION. 



Leaves radical, or in a single whorl on the stem . . . 99 

 Leaves alternate or opposite ....... 100 



Leaves once or twice ternately divided. Flowers in a small 



terminal head ...... ADOXA (p. 206). 



Leaves entire, rush-like, radical. Flowers in a terminal 



umbel. Plant aquatic ..... BUTOMUS (p. 431), 

 Leaves entire, in a single whorl of four or five. Flowers 



solitary, terminal ...... PARIS (p. 456). 



Leaves orbicular, crenate. Capsule inferior, many-seeded. 



100 

 1U 



CHBYSOSPLBNIUM (p. 170). 



102 



103 



104 

 105 



106 



Leaves entire. Capsule several- seeded CARYOPHYLLAOE^: (p. 58). 



Leaves entire. Capsule 1-seeded 101 



- /Leaves small, opposite. Capsule inferior SCLERANTHUS (p. 370). 

 \Leaves alternate, with sheathing stipules POLYGONUM (p. 383). 

 'Perianth coloured, and looking like a corolla .... 103 

 Perianth herbaceous, and looking like a calyx or scales, or 



entirely wanting Ill 



"One or two anthers sessile on a central column or style. One 



of the six divisions of the perianth different from the others. 



ORCHIDACEJE (p. 435). 

 .Three to six stamens distinct from the style .... 104 



Leaves opposite or in whorls 105 



Leaves alternate or radical 107 



Stamens 6. Capsule 2-celled, with several seeds PEPLIS (p. 156). 

 Stamens 5 or fewer. Ovary inferior ...... 54 



Stamens 5. Ovary superior 106 



Capsule 1-seeded. Stipules small, scarious ILLECEBRACE.E (p. 368). 

 Capsules several-seeded, 1-celled. No stipules GLAUX (p. 292), 

 Leaves pinnate, with stipules . . . SANGUISORBA (p. 140). 



107 Leaves pinnate or divided, without stipules UMBELLIFER^E (p. 174). 



Leaves entire 108 



Stipules forming sheaths or rings round the stems. Nut 



108 superior, 1-seeded POLYGONACEJE (p. 379). 



No stipules 109 



Stamens and divisions of the flower 4 or 5 . . . .110 



109 Stamens and divisions of the flower 3 or 6. Leaves with 



parallel veins 154 



Styles 5. Ovary and capsule superior PLUMBAGINE^J (p. 363). 



110 Styles 2. Ovary inferior .... UMBELLIFER^E p. 174). 

 Style 1. Ovary inferior. THESIUM (p. 389). 



{"Leaves opposite or whorled 112 

 Leaves alternate or radical 117 

 Fleshy, articulate, maritime plants, without leaves. Stamens 

 1 or 2 SALICORNIA (p. 371). 



--f Leaves linear, whorled. Stamen 1 . . HlPPURiS (p. 174). 



\Leaves opposite. Stamens 4, 5, or 6 113 



113/ 0varv and ca P sule 1-seeded 114 



\0vary and capsule several-seeded 115 



.- ./Leaves small, with scarious stipules ILLECEBRAOEJB (p. 368). 



114 VNo stipules CHENOPODIACE^J (p. 370). 



-jgf Ovary inferior. Stamens 4 . . . LUDWIGIA (p. 153). 

 \0vary superior 116 



