THE NURSER Y UST. 269 



Silene (Campion, Catch fly). Caryophyllete. 



Propagation is effected by seeds, by divisions, and by 

 cuttings. 



Silk-Cotton Tree. See Bombax. 

 Silphium (Rosin-plant, Compass-plant). Composites. 

 Propagated by seed and by divisions. 



Silver Bell. See Halesia. 



Sisyrinchium (Blue-eyed Grass, Pig Root, Rush Lily, Satin 



Flower). Iridece. 



It may be increased in spring by seeds or by divisions. 

 Skimmia. Rittacece. 



Seeds, in a frame. Also by layers and by firm cuttings in 

 gentle heat. 



Skirret (Sium Sis a rum}. Umbelliferce. 

 Seeds, offsets, or divisions. 



Slipperwort. See Campanula and Calceolaria. 

 Smilacina (False Soloman's Seal). Liliacece. 



Seeds. Division of roots. 

 Smilax (Green-Briar, American China Root). Liliacece. 



Young plants are obtained by seeds and by layers and 

 divisions of the root. For the "Smilax" or Boston-vine of 

 conservatories, see Myrsiphyllum. 



Snapdragon. See Antirrhinum. 



Snowball-tree. See Viburnum. 



Snowberry-tree. See Symphoricarpus. 



Snowdrop. See Galanthus. 



Snowflake. See Leucoium. 



Soapwort. See Saponaria. 



Solandra. Solanacece. 



Increased by seeds sown in spring ; by cuttings, inserted in 

 mould or tan. If small flowering plants are desired, the cut- 

 tings should be taken from flowering shoots. 



Solanum, including Aquartia, Nycterium (Nightshade). Solan- 



acece. 



The annuals, and most of the other species, are raised 

 from seeds. The tuberous kinds may be increased by tubers 



