2i8 ALPINE FLOWERS AND ROCK GARDENS. 



ting them from the old plants when they have formed 

 roots. This species is one of the best for the rockery. 

 Cneorum is one of the most popular, and deservedly so, 

 as it is an abundant bloomer and is deliciously sweet 

 when in full bloom in spring. It likes a limestone soil. 

 It is quite dwarf, growing from six inches to a foot 

 high, and is therefore suitable for the rockery. The 

 flowers are pink. It may be propagated by layers. 

 Mezereum is the well-known " Mezereon,'* a splendid 

 shrub, blooming before winter has passed, and filling 

 the air with fragrance. It grows somewhat stronger 

 than the others, and is not suitable, therefore, for small 

 rockeries. The species has red flowers, but there is a 

 white variety (alba). Odor a (indica) is a delightful 

 species, being both pretty and sweet, but it is not hardy, 

 and is generally reserved for indoor cultivation, 

 together with its varieties, of which alba and Mazeli 

 are very popular. Striata (see coloured plate with 

 Tri folium Alpimim) has purple flowers in June. 



DARLINGTONIA (Californian Pitcher-Plant). 

 — An interesting and handsome plant, with tall, 

 cylindrical, hollow leaves, terminating in a kind of 

 hood, the whole forming a pitcher. There is only one 

 species, Californica, which grows about eighteen inches 

 high, and bears greenish-yellow flowers in spring. It 

 likes a moist atmosphere and peaty soil, intermixed 

 with chopped sphagnum moss. The plant is not quite 

 hardy, and must have a sheltered, though sunny 

 place, in a moist bay at the base of the rockery. 



DELPHINIUM (Perennial Larkspur).— One of 

 our noblest genera of hardy herbaceous plants, but too 



