348 THE NURSERY-MANUAL 



for a home supply. In the middle and southern states, the seeds 

 may be sown in the fall, and the plants protected from cold by a 

 mulch ; or the plants may grow in winter in the warmer countries. 



Leucadendron (Silver Tree). Proteaceoe. 



Propagated by seeds, the seedlings being carefully protected 

 from damping off. It is desirable, before the hypocotyl or stem 

 of the germinating plantlet becomes hardened, to sink the pot in 

 water when the plant is dry, not allowing the water to come over 

 the rim. 



Leucojum, often spelled Leucoium (Snowflake). Amaryllidacea. 



Increased by seeds, which should produce flowering bulbs in a year 

 or two. Propagation is commonly by bulbels, however, which 

 should be taken as soon as possible after the herbage matures. 



Leucothoe. Ericaceae. 



Propagated by seeds, which should be sown under glass in moss 

 and sand and plants pricked off into boxes ; by divisions of estab- 

 lished plants in autumn or winter, by layers and the underground 

 runners ; cuttings may be rooted in sand over gentle bottom heat. 



Levisticum (Lovage). Umbellifcra. 



Propagated by seeds sown in the open ground, and division in 

 spring or autumn. 



Lewisia. Portulacaceos. 



Handled by seeds, or by division in spring. The root of the 

 bitter-root (L. rediviva) may live for years out of the ground. 



Liatris (Blazing Star. Button Snake-Root). Composites. 



Seeds are usually sown early in autumn or in spring. Some 

 species produce offsets, and of others the clumps may be divided. 



Libocedrus. Pinacece. 



Grown from seeds when they are procurable, sown in spring. 

 Cuttings may be started under glass in summer or autumn. It 

 may be grafted on related plants, as thuja and chamsecyparis. 



Libonia: Jacobinia. 



Licuala. Palmaceae. 



Raised from seeds sown at any time in a sandy soil, in strong bot- 

 tom heat. See Palms, page 377. 



