ALPHABETICAL LIST OF PLANTS 301 



by seed or division, and of easiest culture. Quite hardy. There is 

 also a white form which is good. Z. Leonii, L. sibiricum^ and L. 

 provinciale are considered forms oiperenne. 



L. salsoloides. — Likes a sunny aspect in well-drained, sandy soil. 

 A dwarf, half-shrubby species, growing about 12 inches high, with 

 rather heath-like foliage. Large, pure white flowers, with a purple 

 centre, freely produced in June and July. Quite hardy, and of 

 easy culture, and readily raised from seeds. A very choice 

 plant. 



Z. viscosum. — Well-drained, sunny position in sandy loam. A 

 dwarf, half-shrubby plant, growing about 12 inches high, with rather 

 hairy stems. Large, pale purple-coloured flowers, veined with a 

 deeper shade, are borne during the summer. Of easy culture, and 

 can be readily propagated by division or seed. A handsome, showy 

 species for the rock garden. 



LiPPIA NODIFLORA (VeRBENACEAE) 



A plant of the Verbena order, growing 6 to 12 inches high. It 

 bears, during the summer, heads of pretty white or pink flowers. 

 It is useful for covering waste spaces, and will grow in any ordinary 

 soil. Half hardy. 



LiTHOSPERMUM (Boraginaceae), Gromwell 



A genus of dwarf, half-shrubby plants of the greatest beauty and 

 value for the rock garden. Some of them, unfortunately, are not 

 quite hardy. Propagated by seed, cuttings, or division. 



L. canescens. — Requires a dry, sunny position in sandy and gritty 

 loam, mixed with a very little lime rubbish. It forms a compact 

 little bushy plant about 1 2 inches high, with greyish, hoary foliage. 

 The flowers, which are of a good size, are orange-coloured, and borne 

 in clusters from April to June. A hardy, deciduous plant, and very 

 choice. 



L. Gastoni. — Likes a sunny position between rocks, in sandy peat 

 and loam, mixed with grit. Grows about 9 inches high, and bears, 

 during the summer, lovely azure-blue flowers, with a white eye, in 

 terminal clusters. Fairly hardy, but rather difficult to cultivate. 

 When planting, care should be taken not to disturb or break any of 

 its roots ; if grown in a pot, do not break the ball of earth, but plant 

 intact. One of the choicest of the whole family. They are lucky 

 indeed with whom it will thrive. 



Z. graminifolium. — Likes a sunny position in sandy loam. 

 Forms rather a compact tuft, about 9 inches high, with rather 

 long and narrow foliage. The flowers, which are small, and of 



