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GLENNYS HANDBOOK 



SI DA. [Malvaceae] Half-hard j perennials of showy 

 character, which have been sometimes called Nuttallia. Peat. 

 Division or seeds. They require to be protected against 

 damp, 



SIDE-SADDLE FLOWER. See Sarbacenta. 



SIEVERSIA. [Rosaceae.] Hardy perennials, with the 

 habit and structure of Geum, and requiring similar treatment. 

 They are mostly dwarf plants, and grow in light garden soil, 

 increase being effected by dividing the roots. Pretty plants 

 for the border or for rockwork. 



SILENE. Catch FLY. [Caryophj^Uacese.] A genus of 

 annual and perennial plants, bearing trusses of pink, red, 

 pale rose, and lilac blossoms, and lasting some weeks in bloom, 

 pretty enough as border flowers, but put greatly in the back- 

 ground by more showy and popular subjects. The annuals 

 may be sown in the open border where they are to remain : 

 if they are sown too thickly they will draw up, therefore they 

 should be thinned. The perennial sorts grow in common 

 soil, and are propagated by division. 



SILVER FIR. See Picea. 



SINNINGIA. [Gesneraceae.] Stove perennials, allied to 

 Gloxinia, and requiring similar management. 



SIPHOGAMPYLOS. [Lobeliacetfi.] A genus of showy 

 plants, so closely related to Lobelia that various species have 

 been ranked in both genera. They are herbaceous plants, 

 with a half-shrubby mode of growth, throwing up from the 

 root long stems in one season, which mostly branch and blos- 

 som during the next, or bloom along their upper portion 

 towards the close of the season in which they are produced. 

 They require loam, peat, and sand for a compost, as in the 

 shrubby Lobelias, and are in the same way increased .by 

 cuttings. The following are stove perennials : — S. bicolor, 

 flow^ers scarlet and yellow : 8. coccineus, flowers scarlet ; S. 

 longipedunculatus, flowers red ; S. manetticBjlorus, flowers 

 scarlet and yellow. 



SISYRINCHIUM. [Iridacese.] Pretty half-hardy peren- 

 nials of the Iris family. They prefer a bed of peat soil, and 

 propagate by division. The half-hardy species should be 

 potted in the same kind of soil, and should not be over- 

 watered in winter. 



