126 



RESEDACE^:. 



[CLASS 



the parietal placentation : the pericarp opening at the 

 apex before the seeds are ripe. 



Dyer's Mignonette or Weld (R. luteola} is cultivated 

 for dyeing yellow. 



8. Natural Order Cistacea?. The Cistus Family. 



DISTRIBUTION. Chiefly confined to the Mediterranean 

 region. A few occur in America. One British genus, 

 species 4. 



Annuals or wiry perennials. Leaves opposite. Flowers regular. 

 Sepals 3 or 5 (2 small). Stamens indefinite. 



Type Common Rockrose (Helianthemum mtlgare). 

 A low woody perennial, with wiry stems and showy 

 fugacious regular flowers. 



There are 5 carpels in Cistus. Many species of Rock- 

 rose are commonly cultivated in shrubberies and on 

 rock-work. 



9. Natural Order Violaceas. The Violet Family. 



DISTRIBUTION. Widely spread through both hemi- 

 spheres, the woody species being chiefly confined to the 

 Tropics and South temperate zone. One British genus, 

 species 5 6. 



Herbs. Leaves alternate. Flowers irregular. Stamens 5, 



connective produced above the anther-cells. 



Placentas 3, parietal. 



Type Sweet Violet ( Viola odoratd). 



