IRIS— JUGLANS 
115 
I'RIS. 3 — 1. (Irida.) [From iris, the rainbow. J 
crhtnfta, (o-y. Ap. 2^.) bearded ; beard 
crested; scape generally 1-flowered, as 
loii£i: as the leaves. 2-4 f. S. 
trifpeL"ala,{'&. M. 21) bearded ; stem te- 
rete, longer than the leaves ; rudiments of 
the inner petals 3 toothed, middle tootb acu- 
minate. 2 f. S. 
cupre'a, (r-y.) beardless ; stem terete, 
flexuous, equalling the leaves ; capsules 
large, 6-angled. Zi. S. 
ver"na, (b. M.) without beard or stem; 
1 -flowered; leaves gi'ass-like ; tube very 
long. On the earth. S. 
pHsmaf'ica, (b. y. J. 2^.) flowers beard- 
less ; leaves linear ; stem round, many-flow- 
ered; gei-ms triangular, twice grooved on 
the sides. 1 2 f. 
plica' ta, (garden iris, p. w. M. 2^!.) beard- 
ed ; stem many-flowered, higher than the 
leaves; petals undulate-plicate, erect ones 
broadest. 18-24 i. Ex. 
pu'mila, (dwarf flower-de-luce, b. M. 2/.) 
bearded ; scape 1-flowered ; leaves ensiform, 
glabrous ; tube of the corolla exsert ; petals 
oblong, obtuse. 6-10 i. Ex. 
ochroleu'ca, (yellow iris, y. M.) beardless; 
leaves ensiform, depressed, striate ; scape 
Bub-terete ; germ 6-cornered. Ex. 
versic"olor, (snake-lily, blue-flag, b. J. 2X-) 
leaves ensiform ; stem acute on one side ; 
capsules oblong, 3 sided, with obtuse an- 
gles. Var. sulcn'ta,mner petals longer than 
che stigmas ; germ with sulcate angles and 
concave sides ; capsule oblong, ventricose ; 
angles somewhat furrowed. Var. commu- 
nis, stem erect, flexuous ; leaves narrow- 
ensiform ; inner petals a little shorter than 
the stigmas ; angles of the germ not grooved 
when young, sides deep concave ; capsule 
cylindric, oblong. 2-3 f. 
lacus' tris, (b. 2J^.) beardless; leaves short- 
ensiform ; scape much shorter than the leaf, 
1-flowered ; petals attenuated on the tube ; 
capsule turbinate, 3-sided, margined ; seed 
roundish, smooth ; root tuberous. 
misson'riensis, (y. b. Zf.) beardless; stem 
terete, higher than the leaves, somewhat 
3-flowered ; leaves narrow, ensiform ; cap- 
sules oblong-linear ; flowers bicolored. 
12-16 i. 
sam"hnci'na, (elder-scented iris, garden- 
iris, b. p. w. M. 2^.) stem many-flowered, 
higher than the leaves ; divisions of the co- 
rolla emarginate, outer ones flat ; leaves in- 
flex falcate at the apex ; spatha membrana- 
ceous at the apex ; lower flowers pedun- 
cled ; stigmas with acute, serrate divisions. 
18-24 i. Ex. 
sibiri'ca, (b. Ju, H) beardless ; stem hol- 
low, terete, higher than the leaves, some- 
what 3-flowered ; leaves linear ; capsules 
short, 3-angled, obtuse at each end. S. 
ISAN"TnUS. 13-1. (LabiatcE.) [Fromisos, 
equal, anthos, flower.] 
cosru'lem, (blue gentian, false pennyroyal, 
b. Ju. @.) viscid, hairy; leaves lance-oval, 
acute at both ends, 3-nerved ; peduncles 
1-2 flowered. 
ISA'TIS. 14—1. (Cruciferm.) [Name given 
by Dioscorides, origin unknown.] 
tincfo'ria, (woad, J. $ .) radical leaves 
crenate, cauline ones sagittate, oblong. 
ISNAR"DIA. (See Ludwigia.) 
ISOME'RIS. 6—1. (Cappar"ides.) [From 
isos, equal, and meris, divisions.] 
arho'rea, (y, Ip .) leaves crowded, trifoliate ; 
leafets lanceolate, somewhat mucronate, 
glabrous ; calyx campanulate ; segments 
triangular-ovate, acuminate. 
I'TEA. 5—1. (.Saxifrage.) 
virginf'ica, (w. J. 9.) leaves alternate, 
lanceolate, acuminate, sen*ulate, pubescent 
beneath ; flowers in terminal racemes. 4-8 f. 
rVA. 17—4. {Corymhiftra:.) 
fnites"cens, shrubby ; leaves opposite, 
lanceolate, deeply serrate ; heads globular, 
depressed. Seacoast. 3-8 f. High-water 
shrub. Flowers green. 
imbrica'ta, (Au. ^ .) perennial, glabrous ; 
leaves linear-lanceolate, cuneate, succulent, 
the upper alternate and very entire ; invo- 
lucrum imbricate ; chaff" of the receptacle 
spatulate. S. 
xanthifo'lia, (Au. leaves oppoirfte, 
petioled, heart ovate, acuminate, doubly- 
serrate, soft-villous, hoary beneath ; spikes 
naked, panicled. 5-6 f. S. 
cilia'ta, (Ju. herbaceous ; leaves 
lance ovate, sub-serrate ; spike somewhat 
crowded ; bracts lanceolate, acuminate ; 
bracts and petioles long-ciliate. 2 f. S. 
IX"fA. 3—1. (IridecR.) [From iksos, glue, 
from the gummy juice of some plants which 
first bore the name.] 
chinen"sis, (blackberry lily, y. r. J. 2X.) 
corolla about 6-petalled ; stem flexuous ; 
leaves ensiform. Ex. 
ccelesti'na, (b. M. 24!.) leaves linear-sub- 
ulate, much shorter than the 1-flowered 
scape. S. 
JASIVrrNUM. 2—1. (JasmincB.) [From ion, 
a violet, and asme, odor.] 
fru'ticans, (jasmine, y. ^.) leaves alter- 
nate, ternate, simple ; leafets obovate, 
wedge-form, obtuse ; branches angled. Ex. 
officina'le, (jasmine, w. ^ .) leaves pin- 
nate, opposite ; leafets acuminate. Ex. 
JATRO'PHA. 19—15. {EuphorbicE.) [From 
Jatios, an ancient physician.] 
stimulo'sa, (w. Ju. 2i.] hispid, with pric- 
kles ; leaves palmate-lobed ; lobes toothed ; 
cymes short peduncled. 6-8 i. S. 
elas"tica, the juice affords the elastic gum 
called caoutchouc, or Indian-rubber. 
mani'hot affords the cassada root. S. 
JEFFERSO'NIA. 8—1. {Papaveraceac.) [In 
honor of Thomas Jefferson, named by Bar- 
ton ] 
diphyVla, (twin-leaf, w. M. 2^.) stemless ; 
peduncles naked, 1-flowered; leaves in 
pairs. 
JU'GLANS. 19-12. (Terebinlaceee.) 
cine'rea, (butternut, M. leafets nume- 
rous, lanceolate, serrate, rounded at the 
base, soft-pubescent beneath ; petioles vil- 
lose ; fruit obloug-ovate, viscid, long-ped- 
uncled. 
ni'gra, (black walnut, M. Ip .) leafets nu 
merous, lancc-ovate, serrate, sub-cordate, 
narrowed above ; petioles and under side of 
the leaves sub-pubescent; fi-uit globose, 
with scabrous punctures ; n at wrinkled. 
