174 THE ALLIUM. 



They increase freely by offsets, and also ripen seed, 

 which may be sown when ripe, or kept until the fol- 

 lowing spring. In England they survive the winter, 

 planted in a warm, dry border. 



The species are, 



F. antherosa, with green and brown flowers. 



F. angustifolia, with brown flowers. 



F. uncinata. A curious species, with green flowers, 

 having a bright-blue mark in the centre. 



F. atrata. Very brilliant purple flowers. 



F. divaricata. Flowers purple and green. 



F. elongata. Dark-purple flowers ; a native of Monte- 

 video, flowering in July. 



F. oUusifolia. This is the largest species, growing 

 eighteen inches high, and throwing out branches. It 

 blooms in summer, and should be treated like summer- 

 blooming bulbs. It is showy, and produces a profusion 

 of brown flowers. 



F. undulata. A pretty species, with green and brown 

 flowers. 



THE ALLIUM. 



Although not suitable flowers for bouquets or for 

 parlor culture, many of the onions (allium) are very 



