ANALYTICAL KEY. xlvii 



E. Regular syncarpous Polypetals^ ivith definite perigynous or superior atamens. 



Leaves alternate. 



Climbers, with tendrils. 



Flowers hermaphrodite. Ovary stalked Passiploea, p. 123. 



Flowers unisexual. Ovary inferior Cucuebitace^:, 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 calyx-like or none . . . Samydace^;, p. 121. 

 Flowers in compact heads resembling a single flower, 



the coloured petals all outside Ehodoleia, p. 131. 



Ovary 2- or more celled, wholly inferior. 



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



Ovules numerous Onageace^e, p. 108. 



Ovules 1 in each cell Haloeagis, p. 139. 



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



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

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



a berry Aealiace^:, p. 135. 



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



seeded drupe Maelea, p. 138. 



Leaves opposite. 



Petals imbricate or contorted in the bud. 

 Ovules several. 



Anthers small, opening longitudinally. 



Herb of 4 or 5 inches. Flowers 4-merous . . . 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 . Caeallia, p. 110. 



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



Petals valvate in the bud. 



Stamens alternate with the petals Cobnacejs, p. 137. 



Stamens opposite or on the petals Lobanthace-E, p. 140. 



F. Irregular Polypetals. 



Flowers spurred. Anthers 5, united round the pistil. 



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



spurred Viola, p. 20. 



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



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



Flowers not spurred. 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 Polygalace^e, p. 43. 



Petals papilionaceous or spreading. Stamens usually 10. 



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



Gr. Monopetals with 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 Stylidium, p. 195. 



Stamens 5, the filaments free CampanulacejE, p. 195. 



