COMPOSITE 345 



A. leucophylla has white leaves, tomentose on both 

 sides; 10-20 -flowered capitules, forming a compact 

 cluster, violet-rose, fragrant. This variety does not 

 exceed 16-20 in., and forms compact tufts in stony heaps 

 at high altitudes. 



Homogyne 



Ji. alpina (PI. LI). A small creeping plant, with 

 somewhat circular leaves of dark evergreen, glistening 

 above, pale below; flowers reddish, all tubular, in a 

 solitary capitule. July-August. Cool alpine and sub- 

 alpine pastures. It succeeds well under cultivation in 

 rockeries, given a northward or partly shaded position, 

 and may be easily grown from seed, but is not often seen 

 in gardens, having no really striking merit. 







Pctasites 



Eng. : Butter-bur ; "Fr. : Tussilagc ; Ger. : Pcstwurz. 



A fine and striking plant closely allied to Homogyne, 

 Ji. alpina formerly being known as P. alpinus, with a 

 stout and aggressive rootstock, and therefore to be treated 

 with due caution. The hollow stem is covered with 

 narrow, lanceolate scales and carries an oblong raceme of 

 numerous heads. A peculiarity of the plant is the fact 

 that the leaves appear after the flowers. Only to be 

 used in wild and bare places. 



P. niveus (known in the Swiss mountains as "Contre- 

 peste" or "Herbe aux teigneux," on account of a reputed 

 power to cure scurf in children) is a stout plant ; the 

 leaves are broad, slightly triangular and not unlike 

 Rhubarb, with toothed edges, white, tomentose beneath, 

 and expand towards maturity; stems 8-20 in., erect 

 before and drooping after inflorescence, bearing spikes 



