INDEX TO THE GENERA 



641 



Slum, 239. 

 *Sinyrniuai, 234. 

 Solanum, 360. 

 Solidago, 273. 

 Sonchus, 321. 

 Sorbus, 207. 

 *Sorgluim, 602. 

 Si^cirganium, 507-9 

 tSpartina, 555. 

 Spcirtinm, 130. 

 Specularia, 327. 

 Spergula, 100-2. 

 Spergularia, 102. 

 Sj^iraea, 162. 

 S2)iranf}tes, 468. 

 Spirodelctj 511. 

 Stacliys, 404-6, 

 Stellaria, 92-6, 

 *Stratiote8, 466. 

 Succisa, 271. 

 *Syniphoricarpos, 257. 

 Symphytum, 348. 

 *Syringa, 339. 



Tamus, 486. 

 Tanacetum, 288. 

 Taraxacum, 318. 

 Taxus, 463. 

 Teesdalia, 68. 

 TelmaiopJuice, 510. 

 Teucrium, 412. 



Thalictium, 3. 

 Thesium, 436. 

 Thlaspi, 66. 

 TJ/rincia, 316. 

 Thymus, 396. 

 *Tilia, 113. 

 fTillaea, 215. 

 Tissa, 102. 

 Tolypelhi, 621-3. 

 Tordylium. 250. 

 Tor His, 252. 

 Tragopogon, 322. 

 Trlchera, 272. 

 Trifolium, 137-44. 

 Triglochin, 514. 

 TrigoneUa, 132. 

 fTrinia, 235. 

 Triodia, 571. 

 Trisetum, 568. 

 Trificum, 595, 598, 601 , 

 Tulipa, 494, 

 Tunica, 83. 

 *Turgenia, 251. 

 Turritis, 45. 

 Tussilago, 289. 

 Typha, 506. 



U. 



*Udora, 465. 

 Ulex, 129. 

 Uhiius, 440-2, 

 VmbUicus, 215. 



fUnifoliuin. 489. 

 Urtica, 443. 

 Utricularia. 388. 



y. 



^Vaccaria, 83. 

 Vaccinium, 328, 

 Vaillanfia, 258. 

 Valeriiiiia. 267. 

 Valerianella, 269. 

 Verbascum, 362-4. 

 Verbena, 390. 

 Veronica, 375-80. 

 Vibi5rnum, 256. 

 Vicia, 150-5. 

 Villarsia, 346. 

 Vinca, 339. 

 Viola, 72-80. 

 Viscum, 436. 

 *Vogelia, 69. 

 Volvulus, 357. 

 Vidpia, 583. 



W. 



Wa/dcnbergla, 324. 

 *Wilckia, 53. 

 •^Wolffia, 511. 



X. 



tXanthium,28i. 



Z. 



Zaunichellia, 523 



T t 



