496 



INDEX. 



Waltheria americana, i. 132 ; iv. 111. 



, var., iv. 111. 



brevipes, i. 132. 



detonsa, i. 132. 



glomerata, i. 132. 



Mrsuta, i. 132. 



mdica, i. 132. 



preslii, i. 132. 



rotundifolia, i. 132. 



Waria, i. 20. 



Warrea discolor, iii. 251. 



marginata, iii. 251. 



quadrata, iii. 251. 



, Warscewiczella aromatica, iii. 251. 



bidentatum, iii. 251. 



discolor, iii. 251. 



marginata, iii. 251. 



quadrata, iii. 251. 



Wabsce-wiczia, ii. 15. 

 Warscewiczia coccinea, ii. 15. 



coccinea, ii. 16. 



pulcberrima, ii. 16. 



Washingtoniafilifera, iv. 277. 

 Webera, iv. 149. 

 Wedelia, ii. 169. 

 Wedelia, iii. 4. 

 Wedelia acapulcensis, ii. 170. 



aurea, ii. 172. 



carnosa, ii. 170 ; iv. 103, 112. 



cordata, ii. 163. 



— — discoidea, ii. 171 . 



filipes, ii. 170. 



frutescens, ii. 170. 



bispida, ii. 170. 



paludosa, ii. 170. 



pbyllocepbala, ii. 170. 



populifolia, ii. 171. 



strigosa, ii. 171. 



subflexuosa, ii. 163. 



Weinmannia, i. 385. 

 Weinmannia glabra, i. 385. 



intermedia, i. 885. 



pinnata, i. 385. 



Weldenia, iii. 397. 

 Weldenia Candida, iii. 397. 



Candida, iv. 296. 



schultesii, iii. 397. 



Weleia, iii. 410. 

 Welfia, iv. 276. 

 Welfia georgii, iii. 410. 

 Welwitschia mirabilis, iii. 182. 

 Wenderothia, i. 303. 



discolor, i. 303. 



glabra, i. 303. 



Mrsuta, i. 303. 



pibsa, i. 303. 



Wettinia, iii. 401. 



Wiborgia urticeefolia, ii. 161. 



Wigandia, ii. 359. 

 Wigandia, iv. 255. 



Wigandia caracasana, ii. 360. 



kunthii, ii. 360. 



macropbylla, ii. 360. 



scorpioides, ii. 360. 



urens, ii. 360. 



Willdenovia, ii. 16. 



glandulosa, ii. 218. 



Wimmebia, i. 191. 



Wimmeria concolor, i. 191. 



concolor, i. 192. 



confusa, i. 192. 



discolor, i. 192. 



pallida, i. 192. 



persicifolia, i. 192. 



pubescens, i. 192. 



WINTERED, i. 14. 



Wirtgenia mexicana, ii. 171. 



texana, ii. 170. 



Wislizenia, i. 43. 



Wislizenia refracta, i. 43. 

 Wissadttla, i. 107. 

 Wissadula excelsior, i. 108. 



gymnostachya, i. 108. 



jamesonii, i. 108. 



mucronulata, i. 108. 



nudiflora, i. 108. 



rostrata, i. 108. 



scabra, i. 108. 



spicata, i. 108 ; iv. 14. 



Withania coronopus, ii. 421. 



sordida, ii. 421. 



xalapensis, ii. 422. 



Witheringia diversifolia, ii. 423. 



stramonifolia, ii. 424. 



Wittelsbachia, i. 55. 

 Wolefia, iii. 437. 



Wolffia, iii. 435 j iv. 134. 

 Woffia Columbiana, iii. 437. 



Columbiana, iii. 436. 



gladiata, iii. 437. 



gladiata, iii. 436. 



lingulata, iii. 437. 



lingulata, iii. 436. 



Woodsia, iii. 595. 

 Wbodsia, iv. 148. 



canescens, iii. 595, 596. 



fragilis, iii. 595, 596. 



guatemalensis, iii. 595. 



mexicana, iii. 595, 596. 



mollis, iii. 595. 



pusilla, iii. 595. 



Woodwabdia, iii. 628. 

 Woodwardia radicans, iii. 629. 

 radicans, /3. mexicana, iii. 629. 



Woodwardia spinubsa, iii. 629. 

 Wltleia, ii. 167. 

 Wulfia platyglossa, ii. 167. ~ 



Xanthium, ii. 151. ' ; 



Xanthium macrocarpum, ii. 151, 



spinosum, ii. 152. *"-. . 



Xanthocephalttm, ii. 109. - 

 Xanthocephalum, iv. 51. 



Xantbocepbalum alamani, ifelii©.- 



benthamianum, ii. 11Q*i^ 



bonplandianum, ii. 11Q. ; 



centauroides, ii. 110. 



centauroides, ii. 109, 111. 



conoideum, ii. 110. 



dentatum, ii. 111. 



gymnospermoides, ii. 111. 



bundle, ii. 111. 



sericocarpum, ii. 111. 



suffruticosum, ii. 111. 



Xanthocoma, ii. 109. 



humilis, ii. 111. 



Xanthocromyon herberti, iii. 326. 



Xanthosoma, iii. 418. 



Xanthosoma, iv. 278. 



cub'ense, iii. 418, 419. 



belleborifolium, iii. 418. 



boffmannii, iii. 418. 



jacquini, iii. 418. 



pedatum, iii. 418. 



pilosum, iii. 419. 



mexicanum, iii. 418. 



robustum, iii. 419. 



roseum, iii. 419. 



sagittifolium, iii. 419. 



sagittifolium, iii. 418. 



undipes, iii. 418. 



wendlandii, iii. 418. 



Xebococcus, ii. 32. 

 Xerococcus congestus, ii. 32. 

 Xerotideee, iv. 226. 

 Xestcea lisianthoides, ii. 348. 

 Ximenesia cordata, ii. 183 ; iv. 57.. 



encelioides, ii. 187. 



fcetida, ii. 184. 



heterophylla, ii. 184. 



hispida, ii. 184. 



Ximenia, i. 185. 

 Ximenia americana, i. 185. 



multiflora, i. 185. 



oblonga, i. 185. 



parviflora, i. 185. 



Xiphidium, iii. 325. 

 Xiphidium albidum, iii. 325. 



album, iii. 325. 



cceruleum, iii. 325. 



floribundum, iii. 325. 



