THE ROGKFOIL OR SAXIFRAGE 179 



plant is S. caesia, from the European Alps, with small 

 white flowers. Very beautiful is S. marginata, from 

 Central Italy, with rosettes of green leaves dotted on the 

 margins with white. The large flowers are produced in 

 loose panicles of five or six. S. Rocheliana, from Eastern 

 Europe, is another closely allied form with smaller 

 flowers, while S. Salomoni is a hybrid of S. Burseriana. 

 There are many others in this section with white flowers 

 well worth growing. 



With Yellow Flowers. The yellow-flowered members 

 of this section are of greater garden value than the white. 

 They are of freer growth, making large carpets of foliage 

 which are very ornamental in winter. One of the best is 

 S. apiculata, with green foliage, and masses of primrose- 

 coloured flowers in March and April. It is of garden 

 origin. S. aretioides, from the Pyrenees, is more compact 

 and slow-growing, with golden-yellow flowers. A lovely 

 plant is S. Boydii, with large primrose-yellow flowers ; 

 an improvement on this is S. Faldonside. Both are 

 supposed hybrids of S. aretioides and S. Burseriana. 

 S. sancta, from Macedonia, forms dense tufted cushions 

 of deep green pointed leaves, and bears its deep yellow 

 flowers on short stems. Of yellow hybrids there are 

 many, including S. Elizabethae, and others. 



Red Flowers. Those with red flowers are very distinct. 

 S. Grisebachii comes from Macedonia. It has rosettes 

 of silvery leaves, while the flower stalks are about six 

 inches or more high when fully developed. On the 

 upper part is the nodding inflorescence of purplish-crimson 



