INDEX. 



415 



Ipomcea sulphurea, ii. 386. 



superba, ii. 394. 



teruifolia, ii. 394. 



tburberi, ii. 395 ; iv. 73. 



trifida, ii. 395. 



triloba, ii. 395 ; iv. 113. 



tuberosa, ii. 395. 



tubulosa, ii. 395. 



tyriantbina, ii, 395. 



umbellata, ii. 395 ; iv. 113. 



urbica, ii. 383. 



variabilis, ii. 395. 



venustum, ii. 395. 



versicolor, ii. 395 j iv. 74. 



wallii, ii. 396. 



willdenomi, ii. 388. 



wrigbtii, ii. 396. 



Ipomopsis elegans, iv. 71. 



inconspicua, ii. 355. 



Iresine, iii. 21. 

 Iresine, iv. 147. 

 Iresine acuminata, iii. 21. 



aggregata, iii. 17. 



canescens, iii. 21. 



cassiniseformis, iii. 21 ; iv. 82. 



celosioid.es, iii. 21 ; iv. 107, 



114. 

 celosioides, var. eriophylla, iii. 



21. 



diffusa, iii. 21. 



elatior, iii. 21. 



elongata, iii. 22. 



eriophylla, iii. 21. 



jioribunda, iii. 21. 



frutescens, iii. 21. 



gossypina, iii. 21. 



gracilis, iii. 22. 



bookeri, iii. 22. 



interrupta, iii. 22. 



latifolia, iii. 22. 



polymorpha, iii. 21. 



— ! — vermicularis, iii. 18. 

 Iriartea durissima, iii. 401. 



exorhiza, iii. 401. 



IRIDE^S, iii. 325 ; iv. 90. 



Iridece, iv. 196, 203, 217, 226, 231, 



234. 

 Ibis, iii. 325. 

 Iris martinicensis, iii. 326. 



missouriensis, iii. 325. 



Iroucana guianensis, i. 469. 

 Isachne, iii. 484. 

 Isachne, iii. 485. 



arundinacea, iii. 484. 



disperma, iii. 484, 485. 



dispersa, iii. 484. 



dubia, iii. 484. 



Isachne panicea, iii. 484. 



polygonoides, iii. 494. 



brachysperma, iii. 484. 



ventricosa, iii. 484. 



ISATIDE^E, i. 40. 

 Ischcemopogon latifolius, iii. 522. 

 Isch^mtjm, iii. 522. 

 I schasmum latifolium, iii. 522. 



leersioides, iii. 528 ; iv. 279. 



pallidum, iii. 515. 



Ischnosiphon, iii. 309. 

 Ischnosipbon plurispicatus, iii. 309. 

 Isertia, ii. 31. 

 Isertia bsenkeana, ii. 31. 



spicseformis, ii. 31. 



Isnardia palustris, i. 452. 

 Isocabpha, ii. 166. 

 Isoearpba divaricata, ii. 167. 



ecbioides, ii. 167. 



echioides, ii. 81. 



oppositifoHa, ii. 167. 



Isochixus, iii. 222. 



Isochilus, iv. 148. 



Isocbilus carnosiflorus, iii. 222. 



cernuum, iii. 232. 



crassiflorus, iii. 222. 



crassiflorus, iv. 302. 



dubius, iii. 219. 



elegans, iii. 241. 



globosum, iii. 231. 



graminifolium, iii. 265, 266. 



latibracteatus, iii. 222. 



latibracteatus, iv. 302. 



linearis, iii. 222. 



linearis, iv. 270, 294, 303, 304. 



lividus, iii. 219. 



major, iii. 222. 



ramosum, iii. 239. 



Isoetes, iii. 704 ; iv. 282. 

 Isolepis, iii. 462. 



asperula, iii. 459. 



bufonia, iii. 459. 



ceespitula, iii. 463. 



capillaris, iii. 459. 



corymbosa, iii. 462. 



cyperoides, iii. 461. 



echinulata, iii. 462. 



hispida, iii. 460. 



junciformis, iii. 462 ; iv. 165. 



— — panamensis, iii. 462. 



subsquarrosa, iii. 463. 



vestita, iii. 460. 



Isoloma, ii. 477. 



Isoloma, ii. 487. 



Isoloma cordifolium, ii. 478. 



costaricense, ii. 478. 



deppeanum, ii. 478. 



Isoloma elegans,' ii. 478. 



hondense, ii. 478. 



ignoratum, ii. 478. 



incanum, ii. 478. 



incurvum, ii. 478. 



linkianum, ii. 478. 



longifolium, ii. 479. 



petiolare, ii. 479. 



pictum, ii. 479. 



pilosum, ii. 479. 



rupestre, ii. 479. 



scbiedeanum, ii. 479. 



seemannii, ii. 479. 



spicatum, ii. 479. 



strictum, ii. 479. 



tetragonum, ii. 480. 



tubiflorum, ii. 480. 



warscewiczii, ii. 478. 



Isotoma longiflora, iv. 103. 

 Isotypus onoseroides, ii. 254. 

 Iva, ii. 149. 

 Iva ambrosiaefolia, iv. 55. 



asperifoba, ii. 149. 



dealbata, ii. 149 ; iv. 55. 



Ixophorus schiedeanus, iii. 505. 



unisetus, iii. 506. 



Ixoba, ii. 46. 



Ixora americana, ii. 10. 



ferrea, ii. 46. 



floribunda, ii. 46. 



ternifolia, ii. 10. 



IXORE^E, ii. 46. 



Jabobosa, ii. 425. 

 Jaborosa longiflora, ii. 425. 

 Jacabanda, ii. 497. 

 Jacaranda copaia, ii. 497. 



filicifolia, ii. 497. 



Jacabatia, i. 482. 



Jacaratia, iv. 245. 



Jacaratia mexicana, i. 482. 



Jacobinia, ii. 519. 



Jacobinia, ii. 521. 



Jacobinia aschenborniana, ii. 520. 



aurea, ii. 520. 



ebrysostepbana, ii. 520. 



ciliata, ii. 518. 



gbiesbregbtiana, ii. 520. 



heterophylla, ii. 520. 



incana, ii. 521. 



longiflora, ii. 521. 



macrantba, ii. 521. 



macropbylla, ii. 521. 



mexicana, ii. 621. 



mobintli, ii. 521. 



neesiana, ii. 521. 



nutans, ii. 521. 



