THE FLORAL LIST. 57 
SILENE DICHOTOMA, Ehbrh. 1853, Lowe. +1, 5, 8. 
SILENE INFLATA, Sm. =S. LATIFOLIA, Rendle & Brit. 
SILENE LATIFOLIA, Rendle. & Brit. 1836, Dodsworth. —17. 
SILENE MARITIMA, With. 1836, J. Nicholson. +4, 11. 
SILENE MUSCIPULA, L. 1902, Smith. +4. 
SILENE NOCTIFLORA, L. 1836, Dodsworth. —g, ©7. 
SILENE NUTANS, L. 1891, Smith. +4. 
SILENE PENDULA, L. 1893, Mackinder. +10. 
SILENE VENOSA, Aschers. =S. LATIFOLIA, Rendle & Brit. 
SILYBUM MARIANUM, Gaertn. 1820, Ward. +3, 6, 7, 10, 11, 12, 13. 
SINAPIS ALBA, L. =BRASSICA ALBA, Boiss. 
SINAPIS NIGRA, L. =BRASSICA NIGRA, Koch. 
SISON AMOMUM, L. 1851, Watson. —2, 9, 12, £7, 18. 
SISYMBRIUM ALLIARIA, Scop. 1820, Ward. —4,9, 18. 
SISYMBRIUM ALTISSIMUM, L. 18095, W.-P. +4, 5, 13. 
SISYMBRIUM IRIO, L. 1908, Sneath. +6. 
SISYMBRIUM OFFICINALE, Scop. 1836, Dodsworth. -all. 
SISYMBRIUM PANNONICUM, Jacq. =S. ALTISSIMUM, L. 
SISYMBRIUM POLYCERATUM, L. 1896, Grierson. +13. 
SISYMBRIUM SOPHIA, L. 1851, Watson. —8, 11, 16, 17, 18, 
SISYMBRIUM THALIANUM, J. Gay. 1820, Ward. +2,5,6,7, 10,13, 14, 15, 
SIUM ANGUSTIFOLIUM, L. =§S. ERECTUM, Huds. 
SIUM ERECTUM, Huds. 1836, Dodsworth. —17. 
SIUM LATIFOLIUM, L. 1836, Dodsworth. —z, 7, 15. 
SOLANUM DULCAMARA, L. 1836, Dodsworth. -+-all. 
SOLANUM NIGRUM, L. 1836, Dodsworth. —3, 4, 8, 9, 17. 
SOLIDAGO VIRGAUREA, L. 1820, Ward. +2, 3, 4, 5, 7, 10, 13. 
SONCHUS ARVENSIS, L. 1836, Dodsworth. -+all. 
SONCHUS ASPER, Hill. 1836, Dodsworth. -+-all. 
SONCHUS OLERACEUS, L. 1851, Watson. -+all. 
SONCHUS OLERACEUS x ASPER, 1909, W.-P. +3. 
SONCHUS PALUSTRIS, L. 1799, Young. +12 (Extinct.) 
SPARGANIUM ERECTUM, L. 1836, Dodsworth. +-all. 
SPARGANIUM MINIMUM, Fr. 1826, Howitt. +1, 5, 7, 12, 13, 16. 
SPARGANIUM NATANS, Sm. =S, MINIMUM, Fr. 
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