From H. odorus in its whiter and earlier flowers, thinner 

 and smaller leaves, and an entire want of the coarse promi- 

 nent ribs that stiffen the foliage of that plant, which moreover 

 has the floral leaves on long leafy petioles. 



From H . purpurascens in its large floral leaves, and finely 

 toothed leaflets, to say nothing of the colour of the flowers. 



And finally, from H. atroj-ubeiiSj to which perhaps it is 

 nearest, in its much larger pallid flowers, rounder sepals, and 

 broad palmate, not trifid, floral leaves. The leaves moreover 

 are much more leathery than in that species. 



It is a hardy herbaceous plant, requiring a rather moist 

 situation, and peat soil to grow in. 



It is easily increased by dividing the old plants when in a 

 dormant state, or hy seeds, which should be sown, directly 

 they are ripe, in pans tilled with light rich soil. 



