SUPPLEMENT. 
Schwannia, Endlicher. 
Schweiggeria, Sprengel. 
Schwenkia, Linnzeus. 
Sciadophyllum, P. Browne. 
Seiadopitys, Siebold and Zucca- 
rini. 
Scilla, Linnzus. 
Scindapsus, Schott. 
Scirpus, Linneus. 
Scleranthus, Linnzeus. 
Scleria, Bergius. 
Sclerothamnus, R. Brown. 
Scolopendrium, Smith. 
Scolymus, Linnaeus. 
Scoparia, Linnzeus. 
Scopolia, Jacquin. 
Scorpiurus, Linnzeus. 
Scorzonera, Linnzus. 
Scottea, R. Brown. 
Scrophularia, Linnzus. 
Scutellaria, Linnzeus. 
Seuticaria, Lindley. 
Seba, R. Brown. 
Secale, Linnzus. 
Secamone, R. Brown. 
Sechium, P. Browne. 
Securidaca, Linnzeus. 
Securigera, De Candolle. 
Securinega, Jussieu. 
Sedum, Linnæus. 
Seemannia, Regel. 
Selaginella, Sprengel. 
Selago, Linnaeus. 
Selenia, Nuttall. 
Selenipedium, Reichenbach, jun. 
Selinum, Linnzus. 
Semecarpus, Linnæus, jun. 
Semeiandra, Hooker and Arnott. 
Semele, Kunth. 
Sempervivum, Linnzns. 
Senecio, Linnzeus. 
Sequoia, Endlicher. 
Seraphyta, Fischer and Meyer. 
Serapias, Linnæus. 
Serenoa, J. D. Hooker. 
Sericocarpus, Nees. 
Seringia, J. Gay. 
Serissa, Commerson. 
Serjania, Plumier. 
Serpicula, Linnzus. 
Serratula, Linnæus. 
Serruria, Salisbury. 
Sertifera, Lindley. 
Sesamum, Linnæus. 
Sesbania, Persoon. 
Seseli, Linneeus. 
Sesia, Fabricius. 
Sesleria, Scopoli. 
Sesuvium, Linnwus. 
Setaria, Palisot de Beauvois. 
Severinia, Tenore. 
Sewerzowia, Regel and Schmal- 
ausen. 
Seymeria, Pursh. 
Sideroxylon, Linnæus. 
Siebera, Reichenbach. 
Genera and their Authors—continued. 
Siegesbeckia, Linnæus. 
Sigmatostalyx, Reichenbach, jun. 
Silaus, Besser. 
Silene, Linnæus. 
Silpha, Linnæus. 
Silphium, Linnæus. 
Silybum, Gærtner. 
Simaba, Aublet. 
Simarouba, Aublet. 
Simethis, Kunth. 
Simmondsia, Nuttall. 
Sinapis, Linnæus. 
Sinningia, Nees. 
Siphocampylos, Pohl. 
Siphonophora, Koch. 
Sirex, Linnæus. 
Sisymbrium, Linnæus. 
Sisyrinchium, Linnæus. 
Sitona, Germar. 
Sium, Linnæus. 
Skimmia, Thunberg. 
Sloanea, Linnæus. 
Smeathmannia, Solander. 
Smilacina, Desfontaines. 
Smilax, Linnæus. 
Smithia, Aiton. 
Smyrnium, Linnæus. 
Sobralia, Ruiz and Pavon. 
Socratea, Karsten. 
Solandra, Swartz. 
Solanum, Linnæus. 
Solaria, Philippi. 
Soldanella, Linnæus. 
Solenanthus, Ledebour. 
Solenidium, Lindley. 
Solenomelus, Miers. 
Solenophora, Bentham. 
Solidago, Linnzus. 
Sollya, Lindley. 
Sonchus, Linnæus. 
Sonerila, Roxburgh. 
Sonneratia, Linnæus, jun. 
Sophora, Linnæus. 
Sophronitis, Lindley. 
Sopubia, Hamilton. 
Sorghum, Persoon. 
Sorindeia, Thouars. 
Sorocephalus, R. Brown. 
Sowerbæa, Smith. 
Sparaxis, Ker. 
Sparganium, Linnæus. 
Sparmannia, Linnæus, jun. 
Spartina, Schreber. 
Spartium, Linnæus. 
Spartothamnus, Allan Cunningham. 
Spatalla, Salisbury. 
Spathantheum, Schott. 
Spathegaster, Hartig. 
Spathelia, Linnæus. 
Spathicarpa, Hooker. 
Spathiphyllum, Schott. 
Spathodea, Palisot de Beauvois. 
Spathoglottis, Blume. - 
Specularia, Heister. 
Speirantha, Baker. 
coce, Li 
r 
S 
Sphacele, Bentham. 
Spheeralcea, St. Hilaire. 
Spherolobium, Smith. 
Sphzrophysa, De Candolle. 
Spheropteris, Wallich. 
Sphagnum, Dillenius. 
Sphenandra, Bentham. 
Sphenodesma, Jack. 
Spigelia, Linnzus. 
Spilanthes, Linnzus. 
Spilosoma, Stephens. 
Spinacia, Linnzus. 
Spiræa, Linneus. 
Spiranthera, St. Hilaire. 
Spiranthes, L. C. Richard. 
Spironema, Lindley. 
Spondias, Linnæus. 
Sporobolus, R. Brown. 
Spraguea, Torrey. 
Sprekelia, Heister. 
Sprengelia, Smith. 
Spyridium, Fenzl. 
Staavia, Thunberg. 
Stachys, Linnzus. 
Stachytarpheta, Vahl. 
Stachyurus, Siebold and Zuccarini. 
Stackhousia, Smith. 
Stehelina, Linnæus. 
Stangeria, T. Moore. 
Stanhopea, Frost. 
Stanleya, Nuttall. 
Stapelia, Linnzus. 
Staphylea, Linnæus, 
Statice, Linnæus. 
Stauntonia, De Candolle. 
Stauranthera, Bentham. 
Stauropsis, Reichenbach, jun. 
Staurostigma, Scheidweiler. 
Stelis, Swartz. 
Stellaria, Linnæus. 
Stellera, Linnæus. 
Stemodia, Linnæus. 
Stemona, Loureiro. 
Stenanthera, R. Brown. 
Stenanthium, Asa Gray. 
Stenia, Lindley. 
Stenocarpus, R. Brown. 
Stenochilus, R. Brown. 
Stenocoryne, Lindley. 
Stenoglossum, Humboldt, Bonpland, 
and Kunth. 
Stenoglottis, Lindley. 
Stenomesson, Herbert. 
Stenoptera, Presl. 
Stenosp tion, Schott. 
Stenostomum, Gærtner. 
Stenotaphrum, Trinius. 
Stephanandra, Siebold and Zucca- 
rini. 
Stephania, Loureiro. 
Stephanocoma, Lessing. 
Stephanomeria, Nuttall. 
Stephanotis, Thouars. 
Sterculia, Linnæus. 
Stereosandra, Blume. Ge 
Sterigma, De Candolle. SR 
.Steriphoma, Sprengel. 
Sternbergia, Waldstein and Kitaibel. 
Steudnera, C. Koch. E 
Stevensonia, Duncan. 
| Stevia, Cavanilles. | 
Stifftia, Mikans —C 00 
Stigmaphyllon, A. Jussieu. 
Stillingia, Linneus. — .. 
