SCOTCH BROOM SERVICE-BERRY. 317 



Scotch Broom. See Cytisus. 



Screw Pine. See Pandanus. 



Seaforthia. See Ptychosperma. 



Sea-kale (Crambe maritima). Crucifertz. 



Seeds, sown without being shelled, usually in a seed- 

 bed. When the young plants have made three or four 

 leaves, they should be removed to permanent quarters. 

 Seedlings should furnish crops in three years. By root- 

 cuttings, four or five inches long, taken from well estab- 

 lished plants. These should give plants strong enough 

 for cutting in two years. 



Seaside Grape. See Coccoloba. 

 Sechium (Choko). Cucurbitaceti : 



Seeds. Root-tubers. 

 Sedge. See Carex. 

 Sedum (Orpine, Stonecrop). Crassulacecz. 



Propagation may be effected by seeds, by division of 

 tfae tufts, by cuttings of stems or leaves in spring. 



Selaginella. Lycopodiacece. 



Spores, as for Ferns (which see). Short cuttings, in- 

 serted in early spring, in pots or pans. 



Sempervivum (House Leek). Crassulacea -. 



Readily increased by seeds, or by the young plants 

 which appear around the old one at the base. 



Senecio, including Cacalia, Farfugium, Jacobsea, Ligularia 



(Grounsel, Ragweed). Composite. 

 The annuals are propagated by seeds. Others may be 

 increased by seeds, by division, or by cuttings of both the 

 roots and shoots. German Ivy (Senecio scandens) is 

 easily multiplied by cuttings of the running shoots. 



Sensitive Plant. See Mimosa. 



Sequoia, Wellingtonia (Redwood). Conifercz. 



Seeds, which must be handled in a frame or half-shady 



place. Layers, and cuttings handled like those of retino- 



spora and yew. 



Sericographis. See Justicia. 

 Service-berry. See Amelanchier 



