732 
[Xanthium] 
canadense, IV, 153 
conimune wootont, 
LV; — 
italic V., 153 
m acrocarp = glabra- 
tum, IV, 
ov viforme, ts $53 
palustre, TV, 153 
pennsylvanicum, 
IV, 15 
ctaaacaigt LV;-153 
spinosum, IV, 153 
microcephalum, 
Ty 
ae IV, 260 
Xerobotrys 
glaucus, III, 326 
Xerocassia 
armata, II, 479 
nenesi 
erauriculata, EY; sg 
Xyloe Cag § 9 | 
rene sth, — 
Xylophac 
INDEX OF SCIENTIFIC NAMES 
argentinus, II, 578 
eS 
xX sens lanceola ta, 
IV, 336 
orcuttii, IV, 337 
stan iar IV, 336 
tortifolia, IV, 336 
xX ylosteon conjugialis, 
EV,52 
utahensis, 1V,5 
= niente am involucra- 
IV; 5 
X Bias cee montana, 
II, 4 
tomentosa, II, 483 
anmiala cvlenAes 
bk — 
brevifolia,; I, 446 
draconis arborescens, 
graminifolia, 1, 447 
vensis, I, 447 
pepo iP 447 
Zannichellia, I, 91 
palustris, I, 91, 92 
Zanteceee}in aethio- 
a, Ly 
Bie nodilora 
rosea, III, 6 
rc iL 169 
cali ei 
Tit, t70 
Psabos ys “er 169 
— III, 16 
wig os in, 169 
e 
elegans, 
stendeiee, mn, 169 
hallii, 
nian inn 
septentrionalis, 
III, 170 
feqesietis. RY. 08 
aptera, IIT, 241 
ile rie 241 
Zonanthemis angusti- 
folia, 175 
clement IV, 174 
mbosa, IV, 175 
Zygaden 
brevibracteatus, 
mine: 1, 375 
debe 3 374 
intermedius, I, 377 
ZYGOPHYLLACEAE, 
III, 14 
Zygophyllum 
californicum, III, 16 
fabago, ITI, 17 
