Scillas, [28], [40], [51]

Sea-holly, [236]

Silene, [105], [164], [213]

Snapdragons, see [Antirrhinums]

Snowdrops, [28], [40], [51]

Solomon's Seal, [235]

Spiræa, [82], [233]

Stocks, [53], [57], [106], [143], [183]

Sunflowers, [56], [105], [182], [194], [196], [211], [233];
—Rigidus, [233];
—Soleil d'Or, [233]

Sweet Peas, [56], [65], [107], [150], [174], [193]