99^ 



1XX INTRODUCTION. 



q£ f 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. 

 Chrysosplenium (p. 170). 

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

 Leaves entire. Capsule 1-seeded 101 



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



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



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



02-! 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. 

 Orchid ace^e (p. 435). 

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



. /Leaves opposite or in whorls 105 



\ Leaves alternate or radical 107 



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



05-! Stamens 5 or fewer. Ovary inferior 54 



[ Stamens 5. Ovary superior 106 



'Capsule 1-seeded. Stipules small, scarious Illecebrace^ (p. 368). 

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

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

 07-j Leaves pinnate or divided, without stipules Umbellifer^e (p. 174). 



I Leaves entire 108 



[ Stipules forming sheaths or rings round the stems. Nut 



08 -[ superior, 1-seeded Polygon ace^e (p. 379). 



( No stipules 109 



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

 09 -J Stamens and divisions of the flower 3 or 6. Leaves with 



I parallel veins 154 



(Styles 5. Ovary and capsule superior Plumbagine^j (p. 363). 



10s 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). 



12 | Leaves linear, whorled. Stamen 1 . . Hippuris (p. 174). 



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



~„f Ovary and capsule 1-seeded . 114 



\ Ovary and capsule several- seeded 115 



- ./Leaves small, with scarious stipules Illecebrace^e (p. 368). 



\ No stipules Chenopodiace^ (p. 370). 



06 



G 



1K / Ovary inferior. Stamens 4 . . . Ludwigia (p. 153). 

 15 \C 



[Ovary superior 116 



