326 Ifoerbaceous plants. 



Yarrow or Sneeze-wort, Achillea. — The double sneeze- 

 worts (A. Ptarmica plenissima and A. ser rata plena) are 

 very fine and floriferous subjects for a border; they grow 

 one or two feet high, with single stems, narrow lanceolate 

 leaves, and heads in terminal corymbs. The variety known 

 as the pearl is the best. Few other plants of this family 

 deserve consideration. The following are attractive in 

 rockeries : A. Clavennoe, leaves all radical, crowded, bipin- 

 natifid ; flower-heads corymbose, pretty, white ; height from 

 six to ten inches. A. tomentosa, leaves bipinnatifid, finely 

 divided, woolly ; flower-heads bright yellow, corymbose. 



Yellow Chamomile, Anthemis tinctoria. — A desirable 

 summer flowering plant about a foot high forming broad 

 masses; leaves bipinnatifid ; stems slender, bearing numerous 

 golden-yellow heads of flowers. In rockeries or borders. 

 Ordinary, garden soil. 



Double white Chamomile, Matricaria inodora fl. pleno. 

 — A pretty spreading, much-branched annual border-plant 

 with doubly pinnate leaves and very double heads of pure 

 white flowers. Florifierous and ornamental. Flowers in 

 summer. Propagated by means of seeds. 



Fever-few, Pyrethrmn parthenifolium. — A flue annual 

 with double white flowers and pinnate, much-divided leaves. 

 The variety aureum is generally used for summer-bedding in 

 mosaic-groups. Raised from seeds in a greenhouse or frame, 

 or by means of cuttings. P. roseum is a perennial with 

 simple, erect stems, feathery, doubly pinnate leaves and large 

 showy heads of mostly rosy-purple flowers with many 

 varieties. Must be grown in a moist and rich ground to 

 develop fully. Very handsome. 



