LIST OF PLANTS 143 
LiguipAMBAR.—The species mostly grown in this 
country, L. styraciflua, is often propagated by imported 
seed kept in the catkins until required for sowing, being 
difficult to extract. The catkins are first exposed to sun 
or fire heat, causing them to crack and open, and the 
seeds can then be taken out. The latter are often slow 
to germinate. Layers put down in autumn also prove 
successful, and are ready for taking off and replanting 
in the following autumn. 
LirHospERMUM.—L. prostratum, a beautiful blue- 
flowered rock plant, is not always easy to propagate. 
The most promising cuttings are those taken off in 
summer from’ the previous year’s growth, inserted in 
sand and peat, and placed in a cold frame. 
Lopetia.—The hardy and_ half-hardy herbaceous 
perennials are propagated by seed sown in gentle heat 
in February, and with good treatment will flower the 
same season. Cuttings and division of the roots in 
spring are other means. The selected bedding varieties 
of L. erinus are increased by cuttings obtained from old 
plants that have been wintered in a greenhouse and 
brought into heat in early spring to excite growth. It 
is not necessary to cut to a joint, but they should be 
inserted in sandy soil and placed in a warm frame. 
When uniformity of habit is not of material importance 
a stock can soon be raised from seed of which carefully 
saved strains are obtainable. They should be sown in 
a warm house in March. 
LOGANBERRY.—Lowberry and other varieties of this 
family can be readily propagated by pegging down the 
ends of shoots in July and covering them with about 
6 inches of soil, made firm and kept moist, leaving*a few 
inches of the growing tip free from growth. By planting 
