746 
Ipomoea sidaefolia en 308. 
— sinuata Ortega 308 
— tenuissima Choisy 67 5. 
— umbellata Mey. 308, 675. 
Iridaea 593. 
— laminarioides Bory 609. 
— ee J- Ag. 587. 
Iris 258. 27 
_ macrosiphon Tor 
— missouriensis Nutt. er 569, 582, 618. 
382 
— Tolmieana Herb. (= missouriensis) 572 
— tridentata Pursh 392. 
— versicolor L. 363, 368, 379, 387, 440, 
Isoetes 177, 620 1463, 525, 591. 
anderi Engelm. 558. 
_ E chieisare Dur. var. Bräunii (Dur.) 
Engelm. 373. 
— Engelmanni A. Br. var. valida Engelm. 
— flaccida Shuttlew s [49 
— heterospora A. A. "Eat. 373- 
— Tenetag L. var. paupercula 563. 
a Engelm. u . 
Tante rer L. 
Isomeris 2 
— arborea Nutt. 282, 625, 6 
ee biternatum (Raf.) Tor. & Gray 
Itea 44 [506, 512, 526. 
— virwinies L. 224, 424, 425, 426. 
Iva 445. 
— ciliata Willd. 539, 540. 
— Hayesiana Gray 282, 625. 
— frutescens Man. ed. 6, not L. (= oraria 
Bartlett) 382, 409, 416, 428, 446. 
— imbricata Walt. 216, 229, 430, 431, 444, 
Ivesia 258, 260, 621. ai 689, 696, 697. 
— depauperata Gray 582 
= Aipkek} Gotdani Eisok ee 564, 565. 
— (Horkelia) Kingii Wats 
age icn ern gure, R. Br. 330. 
a 
einen 
— jamaicensis (Jacq.) Hall 690, 694. 
Jac urisene Veenier Jacq. 686. 
— keyensis Mez ei 694. 
— linearis Jacq. 675. 
— pungens Gray 637. 
Jamesia americana Torr. & Gray 251, 545. 
Jasminum Bo Andr. 704. 
Jatropha 645, 662. 
— cardiophylla Muell. 637. 
—- macrorhiza Benth. 660 
— multifida L. 660. 
— spathulata Muell. 637. 
— stimulosa Michx. (= urens L.) 432, 
” 
473. 
Index of Plants. 
en 274- 
— carnosa Gray 276, 282, 624. 
eifersorta diphylla (L.) Pers. 485. 
[uanulloa parasitica Ruiz & Pav. 661. 
Juglandiphyllum 177. 
uglandites 177 
Juglans 177, 201, 401. 
— acuminata Al. Br. 174. 
— bilinica Ung. 175. 
— californica Wats. -245, 280, 612, 634. 
— cinerea L. 237, 362, 393, 400, 408, 457; 
- 470, 477» 478, 484, 485, 492, 501, 
2, 504, 512, 513, 520, 521, 522. 
2 eogkeli Heer, 175. 
— mexicana Wats. 650. 
— nigra L. 210, 217, 223, 237, 434 451; 
457, 458, 466, 472, 477, 478, 483, 484 
[2 ai 
| 
501, 502, 504, 505, 509, 511, 513, 514 
521, 522, 542, 543, 544 
— rupestris Engelm. 245, 252, 269, 270, 
296, 514, 543, 580, 642, 643, 645, 649. 
Juncus 177, 302, 442, 572, 604, 605, 653- 
— acuminatus Michx. 511. 
— asper Engelm. 423. 
— balticus W. 490, 558, 572, 576, 5775 586. 
— balticus Willd. var. littoralis Engelm. 
— bufonius L. 239. 499. 
— canadensis J. Gray 367, 382, 400, 402. 
— castaneus Smith 564. 
— Cooperi Engelm. 586, 636. 
— Drummondi E. Meyer 565. 
— effusus L. 402, 415, 442, 492. 
— Elliottii Chapm. 446. 
— filiformis L. 407. 
— Gerardi Loisel. 369, 382, 419. 
— Greenei Oakes & Tuckerm. 202, 220, 
aristulatus 
(Michx.) Coville 423. 
— Mertensianus Bong. 550, 558. 
— mexicanus Willd. 632. 
— militaris Bigel. 202, 424, 475- 
— nodosus L. 511, 541 
— oreganus Wats. er 
— orthophyllus Coville 254, 259- 
= u > 255, 257, 550, 565, 573, 
601, 6 
- ae E. Mey. 202, 219, 421» 4a 
— repens Michx. 442. [424 
— Roemerianus Scheele 428, 446- 
— Regelii en 5 
— scirpoides Lam. (= scirpoides var. mac“ 
rostema Engelm.) 422, 497; 511. 
BEE EN N 
