HAMILTONIA— HELIANTHUS. 
415 
Blosson^ in the fall, and perfecls the fruit 
the next summer. 5-15 f. 
IIAMILTlKNIA. 20—5. (ThymelecB.) 
oleif e'ro, (oiUmt, g-y. J. pubescent; 
leaves oblong, entire, acuminate ; flowers 
in terminal racemes, small. Whole plant 
oily. 
HEDEO'MA. 13—1. (Labiatce.) 
pulegioi'des, (pennyroyal, b. J. pu- 
bescent ; leaves oblong, serrate ; peduncles 
axillary, whorled. 6-8 i. 
hixpi'da, i Ju. 0.) brancbing, pubescent , 
leaves linear, acutish at both ends, very en- 
tire, veined, revolute at the margin ; whorls 
many-flowered ; calyx strigose. 3-6 i. S. 
bra-cteo'la, pubescent ; stem simple, slen- 
der ; leaves linear, sub-lanceolate, acute at 
each end, entire ; pedicels 3-5-flowered ; 
bracts setaceous. S. 
HEDE'KA. 5—1. (Caprifolia.) iFromhccdus, 
a ki(].] 
he'Iix, (English ivy, g-w. S. leaves 3- 
5-lobed ; floral ones ovate ; umbel erect. 
Evergreen. Ex. 
HEDYO'TIS. 4—1. (Rubiacece.) 
glomera'ta, (w. g. M. stem procum- 
bent ; leaves opposite, lanceolate, attenuate 
at the base, pubescent ; flowers in clusters, 
forming whorls. 
lanceola'ta, glabrous ; stem erect, 4-sided, 
angles somewhat winged; leaves sessile, 
lanceolate, acute ; stipules lanceolate, mem- 
branaceous ; corymbs trichotomous, termi- 
nal ; corol funnel form, with exsert anthers. 
IIEDYSA'RFJM. 16—10. (Leguminosce.) fFrom 
edus, sweet, aroma, smell.] 
paniculaftiim, (p. Ju. 2^.) erect; leaves 
ternate, lance-linear, smoothish, revolute 
at the margin ; stipules subulate ; panicle 
terminal ; loment hispid ; joints somewhat 
triangular. 2 3 f. 
stnc"tvm, (p. Ju. 11 ■) stiflly erect, glab- 
rous, simple; leaves ternate, sub-linear, 
net-veined ; stipules subulate ; racemes ax- 
illary and terminal ; loments about 2-joint- 
ed ; joints ternate-triangular, hispid. 2-3 f. 
nudijlo' riim, (p, Ju. 11) leaves ternate, 
broad-oval, acuminate, sub-glaucous be- 
neath; scape panicled, glabrous, radical, 
taller than the stem ; joints of the loment 
-ound-triangular. 1-2 f. 
viridijlo' mm, (g. and p. Au. 24!.) stem 
erect, branched, scabrous; leaves ternate, 
ovate, obtuse, scabrous above, viUose, and 
very soft beneath; panicle terminal, \ery 
long, naked ; joints of the loment triangu- 
lar. 3f. 
rotundifdlhim, (p. Au. 2J!.) stem pi*)3- 
trate, hairy ; leaves ternate ; joints of the 
foment sub-rhomboidal. 2-4 f. 
acumina'lum, (p. Ju. 2^!.) erect, simple, 
pubescent ; leaves ternate, ovate, conspicu- 
ously acuminate, a little hairy ; panicle ter- 
minal, on a very long, naked peduncle ; 
joints of the loment roundish. 1-2 f. 
canadeii" se, (bush trefoil, r. Ju. IX) erect, 
smoothish; leaves ternate, lance-oblong; 
stipules flliform ; flowers racemed ; bracts | 
:ance-ovate. acuminate, ciliate ; joints of the 
oment obtusely triangled, hispid, 3 f. j 
bortallt, leaves pinnate, leafets oblong- j 
ovate, hairy ; stipules sheathing, subulate • 
racemes on long peduncles ; loments with 
smooth, roundish joints. (p.Ju. 24.) Moun- 
tains. 
obtu'sum, (p. and g. Au. erect, slen- 
der, sub pubescent ; leaves ternate, ovate, 
obtuse, sub cordate at the base ; stipules 
subulate ; panicle terminal ; joints of the 
loment sub-orbiculate, reticulate, hispid. 
1-2 f 
linca'tuni, (2^.) stem creepmg, striped 
with green ; leavcB ternate, roundish, sub- 
sessile ; racemes long, with small scattered 
flowers ; joints of the loment lenticular 
S. See Desmo'dium. 
ITELE'NIUM. 17—2. (Corymbiferce.) [From 
Helena, wife of Menelaus, king of Sparta.] 
autumna'le, (false sun-flower, y. Au. IX-) 
leaves lanceolate, serrate, sub-decuiTent ; 
stem corymbed above ; disk florets 5-cleft 
rays flat, reflexed. Var. pubes"cens,\ea.veB 
pubescent. 3-5 f 
HELIAN"THEMUM. See Cis"tus. 
HE'L1AN"THUS. IT— 3. (CorymbifereE.) 
[From elios, the sun, an'thos, flower, on ac- 
count of its broad yellow disk and rays ; and 
not, as is often supposed, from its turning 
with tiie sun, which is not the fact with 
respect to tliis flower.] 
angustifo'lins, (y. and p. O. 2X-) stem 
slender, sligbtly .scabrous ; leaves narrow 
lanceolate, revolute at the margin, sca- 
brous, entire, glaucous beneath ; scales of 
the calyx lance-linear, ciliate, expanding ; 
chafl'3-toothed. 3-5 f. 
7nol"Us, (y. Ju. 11-) stem smooth below, 
scabrous above ; leaves lance ovate, acute 
serrate, scabrous above, pubescent and 
hoary beneath ; flowers few, terminal. 3-6 f. 
pandjio'rus, (y.) leaves lance-linear, acu- 
minate, serrate, smoothish ; stem naked, 
trichotomous, few-flowered; calyx clo.se- 
imbricate ; divisions ovate. 4-5 f S. 
fyrachelifo'Uus, (y. Au. 2^.) leaves ovate- 
lanceolale, opposite acuminate, serrate 
triply-nerved, very scabrous on both sides ; 
scales of the calyx lance-linear, ciliate ; 
outer ones longest. 3-4 f 
deca-petn'lus, (y. Sept. ll) leaves ovate 
acuminate, remotely serrato, 3-nerved, sca- 
brous ; scales of the calyx lanceolate, sub- 
equal, sub-ciliate ; rays 10 or 12. Flowers 
in large terminal panicles. 
gigari"teu%, (y. Sept. Hi) leaves alter- 
nate, lanceolate, serrate, scabrous, paler 
beneath, nearly sessile, ciliate at the base; 
scnles of the calyx lanceolate, ciliate ; 
flovvers in a loose, terminal panicle; raya 
12-14, not large. 5-6 f. 
atmru'beas, hispid, stem naked toward 
the summit, loosely panicu.ate ; leaves op- 
posite, spatulate, oblong-ovate, crenate. 3- 
nerved, scabrous on the upper side ; scales 
of the calyx ovate-lanceolate, as long as 
the disk ; rays yellow ; disk dark purple. 
corona' rium, French honeysuckle, a na- 
tive of Italy. 4 f Flowers scarlet. Ex. 
tubero'sus, (.Jerusalem artichoke, y. & 
2X-) leaves 3-nerved, scabrous; lower ones 
heart-ovate, upper ones ovate, acuminate 
petioles ciliale; root tuberous. Natural 
ized. 4-8 L 
