IRIS— JUGLANS 
421 
I'RIS. 3 — 1. (Irid(t.) [From iris, the rainbow. J 
crista'ta, (D-y. Ap. IX) bearded ; beard 
crested; scape generally 1-flowered, as 
long as the leaves. 2-4 f. S. 
tri'vefalUyCE,. M. 21) bearded ; stem te 
rete, longer than the leaves ; rudiments of 
the inner petals 3 toothed, middle tooth a^n- 
minate. 2 f. S. 
cupre'a, (r-y.) beardless ; stem terete, 
flexuous, equalling the leaves ; capsules 
large, 6 angled. 3 f. »S. 
ver"na, (b. M.) without beard or stem; 
1 -flowered ; leaves grass-like; tube very 
long. On the earth. S. 
prismafica, (b. y. J. 2-C.) flowers beard- 
less ; leaves linear ; stem round, many-flow- 
ered; germs triangular, twice grooved on 
the sides. 1 2 f. 
plica' ta, (gai-den iris, p. w- M. 2^.) beard- 
ed ; stem many-flowered, higher than the 
leaves; petals undulate-plicate, erect ones 
broadest. 16-24 i. Ex. 
pu'mila, (dwarf flower-de-luce, b. M. IX-) 
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 
sub-terete ; germ 6-cornered. Ex. 
versic"olor, (snake-lily, blue-flag, b. J. 2^.) 
leaves ensiform ; stem acute on one side ; 
capsules oblong, 3 sided, with obtuse an- 
gles. Var. sulco'ta,mner petals longer than 
the stigmas ; germ with sulcate angles and 
concave sides ; capsule oblong, ventricose ; 
angles somewhat fun-owed. 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. 2^.) 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. 
missou'rienais, (y. b. ll-) beardless; stem 
terete, higher than the leaves, somewhat 
3-flowered ; leaves narrow, ensiform ; cap- 
sules oblong-linear ; flowers bicolored. 
12-16 i. 
sam"bnci'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. 2i ) 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"THITS. 13—1. {Lahiatm.) [From tsos, 
equal, anthos, flower.] 
coBru'leuH, (blue gentian, false pennyroyal, 
b. Ju. ^.) viscid, haiiy ; leaves lance-oval, 
acute at both ends, 3-nerved ; peduncles 
]-2 flowered. 
♦SA'TlS. 14—1. iCruciferm.) [Name given 
hv Dioscorides. origin unknown.] | 
tincto'ria, (woad, J. radical leaves 
crenate, cauline ones sagittate, oblong, 
ISNAR"DIA. (See LUDWIGIA.) 
ISOME'RIS. 6—1. (Cfippar"ides., [Frora 
isos, equal, and meris, divisions.] 
nrbo'ren, (y, f).) leaves crowded, trifoliate 
leafets lanceolate, somewhat mucronate 
glabrous ; calyx campanulate ; segments 
triangular-ovate, acuminate. 
I'TEA. 5—1. (Saxifragm.) 
virgin"ica, (w. J. 7.) leaves alternate, 
lanceolate, acuminate, serrulate, pubescent 
beneath ; flowers in terminal racemes. 4-8 f. 
I'Va. 17—4. (Corymbiff.rce.) 
friites"cenK, shrubby ; leaves opposite, 
lanceolate, deeply serrate ; heads globular, 
depressed. Seacoast. 3-8 f. High-water 
shrub. Flowers green. 
imbricn'ta, (Au. ^.) perennial, glabrous, 
leaves linear-lanceolate, cuneate, succulent, 
the upper alternate and very entire ; invo- 
lucrum imbricate ; chatF of the receptacle 
spatulate. S. 
xanthlfo'lia, (Au. 1^.) leaves opposite, 
petioled, heart ovale, acuminate, doubly- 
serrate, soft-villous. hoary beneath ; spikes 
naked, panicled. 5-6 f. S. 
cilio'ta, (.lu. @.) herbaceous ; leaves 
lance ovate, sub seiTate ; spike somewhat 
crowded ; bracts lanceolate, acuminate , 
bracts and petioles long-ciliate. 2 f. S. 
IX"IA. 3 — 1. (Iridea:.) [From iksos, glue 
from the gummy juice of some plants wiiich 
first bore the name.] 
chiiien"sis, (blackberrj' lily, y. r. J. 2i.) 
corolla about 6-petalled ; stem flexuous ; 
leaves ensiform. Ex, 
coRlcsti'na, (b. M. 2^.) leaves linear-sub- 
ulate, much shorter than the 1-flowered 
scape. S. 
JASMI'NUM. 2—1. (JasmincE.) [From ion, 
a violet, and asme, odor.] 
fri/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. (EuphorbicB.) [From 
Jat'os, an ancient physician.] 
stimulo'sa, (w. Ju. Xl-) 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. 
rnani'hot affords the cassada root. S. 
JEFFERSO'NIA. 8—1. (Papaveracea.) [In 
honor of Thomas Jefferson, named by Bar 
ton ] 
diphyVla, (twin-leaf, w. M. 2^.) stemless ,• 
peduncles naked, 1-flowered; leaves la 
pairs. 
JU'GLANS. 19-12. (Terebintacem.) 
cine'rea, (butternut, M. ^ .) leafets nume- 
rous, lanceolate, serrate, rounded at the 
base, soft-pubescent beneath ; petioles vil 
lose ; fruit oblong-ovate, viscid, long-ped- 
uncled. 
ni'gra, (black walnut, M. ^.) leafets nu 
merous, lance-ovate, serrate, sub-cordato, 
narrowed above ; petioles and under side o( 
the leaves sub-pubescent; fruit globtse 
with scabrous punctures; nut wrinkled. 
