INDEX. 



825 



Viola sagittata Ait 369 



Viola sororia WiLLD 370 



Viola striata AiT 366 



sylvestris Lam 366 



Viola uliginosa MUHL 366 



unittora var, pubescens 



Reg 367 



villosa Walt 370 



Violaceae 365 



Viorna Pers 240 



Virga aurea TouRN 508 



Virgilia L'Her 547 



Virgularia R. and P 468 



Viscum terrestris Linn 413 



Vitaoeae 357 



Viticella Mitch < 434 



Viticella Moench 240 



Vitis IjINN 358 



aesti val is Micnx 358 



cordifoliaLAM 359 



Vitis cordifolia var. riparia 



Gray 358 



hederacea Ehrh 357 



incisa Jacq 358 



intermedia MuHL 358 



labrusca Walt 358 



labruscoides Muhl 358 



laciniosa Marsh 358 



odoratissinia Don 358 



palmataVAHL 358 



quinquefolia MiCHX — 357 



Vitis ripana Micnx 358 



Vitis virginiana PoiR 358 



vulpinaLiNN 358 



vulpina var. cordifolia 



Regel 359 



vulpina Jacq 358 



vulpina Muhl 359 



Vitis-ldaea TouRN 410 



Vitmannia TURRA 216 



Vittadinia A. Rich 525 



Vivianaceae LiNDL 332 



rieckia Raf 449 



foenicula (Pursh) 449 



nepetoides (LiNN. ) 450 



s cro p hill ariaef alia 



(WiLLD.) 449 



Voightia Roth 568 



Volvulus Med 428 



sep^ou (Linn.) 428 



spithameus ( Linn.) 428 



Vosacan Adans 539 



Vulpia Gmel 82 



Vyenomus Presl 348 



W 



Waldscfimidtia WiGG 418 



Waldsteinia WiLLD 299 



WalliaALEF 176 



cinereaALEF 177 



nigra Alef 177 



Webbia DC 499 



Webbia Spach 362 



WeigelaTnuNB 486 



Weigela Pers 486 



Wendia Hoffm 389 



Whitlavia Hook 435 



Wiggersia Alef 315 



Wikstromia Spkbng 501 



Wilhelm.^ia C Koch 77 



Willdenowa Cav 548 



Willkommia Schultze 554 



WoodvilleaDC 525 



WolffiaHoRK 134 



brasiliensis Wedd 134 



— Columbiana Karst 135 



Wulffia Neck 134 



X 



Xamachrista Raf 309 



trifoliaRAF 309 



Xanthidium Delp 534 



Xantliium Linn 535 



Xantbium americanum Walt 535 



Xanthium canadense Mill 535 



canadense var. echinatum 



(MURR.) 536 



Xantbium carolinense Dill.. 535 



ecbinatum MuRR 536 



— — maculatum Raf 536 



macrocarpum var glab- 



ratum DC 535 



orientale Linn 535 



strumarium Auct. Am.. 535 



strumarium var. cana- 

 dense T. and G 535 



Xanthogalum Lall 390 



Xantholinum Reich 335 



Xanthoselinum Schur 390 



Xanthoxylum see Zanthoxy- 



lum 



fraxinifoliura Marsh... 337 



mite WiLLD 337 



Xeniatrum Salisb 151 



Xenocarpus Cass .. 554 



Xipbion Parlat 160 



Xipbocarpus Presl 327 



XiphocbaetaPoEPP. andENDL 500 



Xipbocoma Stev 241 



Xipholepis Steetz 499 



Xylantbena Neck 558 



Xylococcus NuTT 408 



Xylopleurum Spach 380 



Xylorhiza Nutt 515 



Xyloobiza Salisb 147 



XylosteumTouRN 48o 



ciliatum Pursh 486 



ciliatum var. album 



Pursh 483 



tartaricum Michx 486 



Xypberus Raf 311 



Xyrirtaceae. .. 135 



Xyridion Klatt loO 



Xyris Linn 135 



Xyris bulbosa Kunth 135 



Xyris flexuosa Muhl 135 



Xyris jupicai Micnx 135 



— scabra Engelm 135 



Xysmalobium R. Br 423 



