Sagittaria latifolia, (496.) 
ngiloba, 496. 
variabilis, and varieties, 496. 
Sanvitalia a 517. 
ste keer 0.) 
Sarcobatus peer (520.) 
(520.) 
Sarcostemma heterophyllum, 487, 
Schrebera schinoides, (83. ) 
Scilla angusta, 511. 
Scutellaria cardiophylla, 511 
Senecio ampullaceus, var. floccosus, 511. 
ar. 
Sequoia, 387, 
Sesleria acta (497.) 
Sida heteroca 
Lindhei eri, ‘ed 
Silphium leciniatam, 530, 533. 
a oe incisum, 514. 
Sisyrinchium minus, 511 
Solanum ‘oxen 511. 
Sophora a (513.) 
selon, 5 13. 
Sparganium, 518. 
eurycarpum, 518. 
Spartina junciformis fa 
Specularia biflora, 5 
leptoe ee 
Sphaceloma ampelinum, 
Spiciviscum, (489.) Pint Phoraden- 
Spiranthes vernalis, 511, 
ia obt 
Succuta, o) (See ‘Cenedas 
giapseoscnatl 
ee ieee: 513. 
T. 
TALINUM AURANTIACUM, 511, 516. 
var, angustissimum, 516, 
ealycinum, 40, 512, 514. 
orum, 512. 
ee 511, 516. 
thulatum, 516, 
teeta, 512. 
Tetracoccus, 
~escptseten Don Texana, , 514.) 
Th alictrum F; endleri, 
Canadensis, 324, 354, 382. 
INDEX TO SPECIES. 
Tsuga ote gr 382, 524. 
ii, (353.) 
Moai, (380.) 
Mertensiana, 354, 380, 382, 524. 
Pattoniana, 354, (380.) 
if 
VERBENA, aa 404, 508. 
a, 511. 
bracteosa toon X pa 509. 
hastata, (508. 
paniculata, 508. 
X stricta, 508. 
Vernonia Lettermani, 521. 
Lindheimeri, 514. 
Vesicaria auriculata, 511. 
recurvata, 511. 
ecg fruit of, 477. 
Viscum Bolleanum, (493.) 
sabi ng, 413, 417, 418, 421, 
“ima 
canes 413. 
var. (?) cinerea, 426. 
- monticola, 413. 
Arisonica, 413, 418, 421, 426, 
Berlandieri, we 1.) 
bipinnata, 41 
Californica, an 418, 421, 427. 
candicans, 413, 418, 421, (512, 
517.) 
Caribea, 413, 418, 421. 
cinerea, 417, 418, 422. 
kaw ag 411, 412, Anes io 418, 
426. = deed 
Bag Arcades 
coriacea, rn 
indivisa, 
hen a, Png 413, 415, 417, 
ong 
Linceeu i (a2 1) 
ailatae 418, 421, 422, (413.) 
421 
palmata, 417, 418, 423, 429. 
riparia, 412, 413, 415, 417, 418, 
423, 426, 427, 428, 429 
rotundifolia, (418, 425.) 
rubra, (423, 429. 
rupestris, Co — 415, 416, 417, 
vulpina, ak at 415, 416, 418, 
Zanis, (424.) 
547 
WISLIZENIA, 48. 
refracta, 48, 
Wollftia, 518, 
X. 
XANTHOXYLUM CAROLINIANUM, 517. 
digynum, (517.) 
Xyris Caroliniana, var. scabra, 511. 
scabra, (511.) 
Y. 
Yucca, 276, i 299, 
acaulis, (29 
acuminata, ok » 
ca, (288, 297, 298.) 
aloifolia, 287, 296, 297. 
var. conspicua, 288. 
var. Draconi 4 
angustifolia, 276, 294. 
var. elata, 294, 298, 299. 
Bietkaavi 290.) 
beovitoli, 276, 293, 296, 297, 298, 
(29 
rarer 291, 298. 
(288, 289.) 
var. — (276, 293.) 
la 
elata, 299, 
Ellacombii, (290. ) 
ensifolia, ¢ 290.) 
298. 
glauca, (290, 291, 295.) 
gloriosa, 289, 297, 298. 
var. planifolia, 289. 
var. plicat 
eid recurvifolia, 289, 
Guatemalensis, 288, 289. 
longifolia, (290. ) 
lutescens, (293. ) 
