ANALYTICAL KEY. xlvii 



E. Reyxdar syncarpous Poli/petals, with definite periyi/nous or superior atamens. 



Leaves alternate. 



Climbers, with tendrils. 



Flowers hermaphrodite. Ovary stalked Passiflora, p. 123. 



Flowers unisexual. Ovary inferior Cucurbitace^, p. 123. 



Trees, shrubs, or herbs, without tendrils. 



Ovary 1-celled, at least at the base, with parietal pla- 

 centas, and more or less free at the top. 

 Flowers separate. Petals cal}Ti:-like or none . . . SamydacE-S;, p. 121. 

 Flowers in compact heads resembhug a single flower, 



the coloured petals all outside Rhodoleia, p. 131. 



Ovary 2- or more celled, wholly inferior. 



Calyx-lobes conspicuous, valvate, 4 or rarely 5. 



Ovules numerous Onagrace^, p. 108. 



Ovules 1 in each cell Haloragis, p. 139. 



Calyx- teeth minute or none. Ovules 1 in each cell. 



Petals 5, small. Ovary 2-celled. Fruit dry . . . IlMBELLlFERiE, p. 133. 

 Petals 4 or 5, small. Ovary 2- or more celled. Fruit 



a berry ARALiACEiE, p. 135. 



Petals 6 to 10, linear. Ovary 2-celled. Fruit a 1- 



seeded drupe Marlea, p. 138. 



Leaves opposite. 



Petals imbricate or contorted in the bud. 

 Ovules several. 



Anthers small, opening longitudinally. 



Herb of 4 or 5 inches. Flowers 4nnerous . . . Ammannia, p. 111. 

 Shrub with heath-like dotted leaves. Flowers 5- 



merous B^ckea, p. 118. 



Anthers opening by 1 or 2 pores at the top . . . Melastomace.e, p. 112. 

 Ovules 2 in each cell. Berry 1-seeded. Shrub or tree . Carallia, p. 110. 



Ovules 1 in each cell. Herb Haloragis, p. 139. 



Petals valvate in the bud. 



Stamens alternate with the petals Coenace^, p. 137. 



Stamens opposite or on the petals LoEANTnACE.^, p. 140. 



F. Irregular PolypetaU. 



Flowers spurred. Anthers 5, united round the pistil. 



Sepals 5, herbaceous. Petals 5, spreading, one of them 



spui-red Viola, p. 20. 



Sepals 2 outer ones, 1 larger inner one hooded and spurred. 



Petals 1 outer entire, 2 inner ones lobed Impatiens, p. 55. 



Flowers not spvuTcd. Stamens 10 or few ; anthers free, the 

 filaments often united. 

 Petals 3, small, erect. Stamens 8, in 2 clusters. Ovary 



1- or 2-celled, with 1 ovule in each cell Polygalacej3, p. 43. 



Petals papiHonaceous or spreading. Stamens usually 10. 



Ovary 1-celled, with 2 or more ovules Legitminosj^, p. 71. 



G. Monopetals ivith an inferior ovary. 



Anthers united in a ring round the style. 



Flowers compound, i. e. florets in compact heads, with a 



common involucre, without separate calyxes .... Composite, p. 165. 

 Flowers distinct, irregular. 



Stamens 2, connate with the style Stylidifm, p. 195. 



Stamens 5, the filaments free Campanulace.e, p. 195. 



