ALPHABETICAL LIST OF PLANTS 293 



/. sempervirens. — A dwarf-growing and well-known little ever- 

 green, shrubby plant. It bears a profusion of white, sweet-scented 

 flowers in April and May. Readily increased by cuttings and seeds. 

 It is hardy and of easy culture. Varieties of this plant, which are 

 rather better, are: ^''Little Gem,^^ more compact and dwarfer in 

 habit, with smaller flowers. ^'Snow/lake,'' an improved form of 

 sempefvirens. More compact growth, and larger flowers of a purer 

 white. The best white of the family, blooming in April and May. 



/. stylosa (syn. Noccaea stylosa). — A very dwarf-growing plant, 

 with pale lilac flowers, sweet-scented. Blooms in spring. 



Incarvillea (Bignoniaceae) 



A genus of plants of rather recent introduction, of which only a 

 few kinds are at present in cultivation. 



/. Delavayi. — Requires a very deep root-run in good loamy soil, 

 plentifully mixed with sand and leaf-mould. It likes a half-shady 

 position. Handsome leathery leaves about 12 inches long. Flowers 

 trumpet-shaped, and of a rosy-purple colour, borne in racemes on 

 stout stalks from i to 3 feet high. Quite easy to grow, provided the 

 crowns are kept fairly dry during the winter. It is a herbaceous 

 rather than a rock plant, and can easily be raised from seed. 



/. grandiflora. — This is of dwarfer habit, with smaller leaves and 

 rather larger and better-coloured flowers. It requires the same 

 treatment and position as the last named. It comes equally freely 

 from seed. 



/. Olgae. — Tall-growing, reaching about 3 feet. Pinnate leaves. 

 Rose-pink, trumpet-shaped flowers. Not a very hardy kind, nor a 

 very free bloomer. 



/. variabilis.— '^X^Xi^^x stems and loose panicles of rose-coloured 

 flowers. Also of doubtful hardiness, and a shy bloomer. 



Inula (Compositae) 



A genus of plants chiefly suitable for the herbaceous border, but 

 a few kinds can be used for the rock garden. These should be 

 associated with the more robust-growing plants. They are all of 

 easy culture in ordinary loam. They have large, composite flowers, 

 and are easily increased by seed or division. 



/. acaulis. — Dwarf foliage, and large yellow flowers on stems 

 about 6 inches high. 



/. ensifolia. — Is of compact habit, and has yellow flowers, one or 

 more, on erect stems 9 inches high. 



/. montana. — An early flowering species, growing about 9 inches 

 high. 



