HAMILTONIA— HELIANTHUS. 
109 
Blossnms in the fall, and perfects the fruit 
the next summer. 5-15 f. 
HAMILTO'NIA. 20-5. {Thymele<B.) 
oto/e'm, (oil-nut, g-y. J. '^.) pubescent; 
leaves oblong, entire, acuminate ; flowers 
in terminal racemes, small. Whole plant 
oily. 
HEDEO'MA. 13—1. {Labiates.) 
pulegioi'des, (pennyroyal, b. J. @.) pu- 
bescent ; leaves oblong, serrate ; peduncles 
axillary, whorled. 6-8 i. 
hixpi da, (Ju. @.) branching, pubescent ; 
leaves linear, acutish at both ends, very en- 
tire, veined, revolute at the margin ; w^horls 
many-flowered ; calyx strigose. 3-6 i. S. 
hracteo'la, pubescent ; stem simple, slen- 
der ; leaves linear, sub-lanceolate, acute at 
each end, entire ; pedicels 3-5-flowered ; 
bracts setaceous. S. 
HEDE'RA. 5—1. (CaprifoUa.) iFrom hcedus, 
a kid.] 
he'l/x, (English ivy, g-w. S. leaves 3- 
5-lobed ; floral ones ovate ; umbel erect. 
Evergreen. Ex. 
HEDYOTfS. 4—!. (Rubiace^.) 
giomerd'ta, (w. g. M. @.) stem procum- 
bent ; leaves opposite, lanceolate, attenuate 
at the base, pubescent; flowers in clusters, 
forming whorls. 
laiiceolo'ta, glabrous; stem erect, 4-sided, 
angles somewhat winged; leaves sessile, 
lanceolate, acute ; stipules lanceolate, mem- 
branaceous; corymbs trichotomous, termi- 
nal ; corol funnetfcrm, with exsert anthers. 
HEDYSA'RUM. 16—10. (LegumtnoscE.) {From 
edits, sweet, aroma, smell.] 
paniculaUum, (p. Ju, 2^.) erect; leaves 
ternate, lance linear, smoothisli^ revolute 
at the margin; stipules subulate; panicle 
terminal ; loment hispid ; joints somewhat 
triangular. 2 3 f. 
stnc"tum, (p. Ju. 2|.) stiffly erect, glab- 
rous, simple ; leaves ternate, sub-linear, 
oet-veined ; stipules subulate ; racemes ax- 
illary and terminal ; loments about 2-j()iut- 
ed ; joints ternate-trianeular, hi.spid. 2-3 f. 
nud'ijlo'rum,, (p. Ju. 2^.) leaves ternate, 
broad -oval, acuminate, sub-glaucous be- 
neath; scape panicled, glabrou.s, radical, 
taller than the stem ; joints of the loment 
"ound-triangular. 1-2 f. 
viridijlo'ntm, (g. and p- Au. 24!-) stem 
erect, branched, scabrous; leaves ternate, 
ovate, obtuse, scabrous above, villose, and 
very soft beneath ; panicle terminal, very 
long, naked ; joints of the lomeat triangu- 
lar. 3 f. 
rotund,ifo'linm, (p. Au. IX.) stem pros- 
trate, hairy ; leaves ternate ; joints of the 
loment sub rhomboidal. 2-4 f. 
acumina'tum, (p. Ju. 2^.) erect, simple, 
pube.scent ; 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 t 
ca.nodeiL"se, (bush trefoil, r. Ju. 2/.) erect, 
Bmoothish ; leaves temate, lance oblong; 
stipules iiliform ; flowers racemed ; bracts 
lance-ovate, acuminate, ciliate ; joints of the 
loment obtu'^ely triangled, hispid, 3 f. 
borea'le, leaves pinnate, lealets oblong- 
I ovate, hairy ; stipules sheathing, subulate ; 
racemes on long peduncles ; loments with 
smooth, roundish joints. (p.Ju. 2^.) Moun- 
tains. 
obtu'sum, (p. and g. Au. 2X.) 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, {2i.) stem creeping, striped 
with green ; leaves ternate, roundish, sub- 
sessile ; racemes long, with small scattered 
flowers ; joints of the loment lenticular. 
(S. See DESMo'niUAi. 
HELE'NIUM. 17—2. {CorymbiferoE.) [From 
Helena, wife of Menelaus, king of Sparta.] 
autumna'Ie. (false sun-flower, y. Au. 2_(.) 
leaves lanceolate, serrate, sub-decurrent ; 
stem corymbed above ; disk florets 5 cleft ; 
rays flat, reflexed. Var. pwies''ce?ts,leave8 
pubescent. 3-5 f 
HELIAN'THEMUM. See Cis"tus. 
HE'L1AN"THUS. 17-3. (CorymUfera.) 
[From elios, the sun, anikos, flower, on ac- 
count of its broad yellow disk and rays ; and 
not, as is often supposed, from its turning 
with the sun, which is not the fact with 
respect to this flower.] 
angustifo'lius, (y. and p. O. 2^.) stem 
slender, slightly .scabrous; leaves narrow- 
lanceolate, revolute at the margin, sca- 
brous, entire, glaucous beneath ; scales of 
the calyx lance-linear, ciliate, epcpandiug; 
chaffs-toothed. 3-5 f. 
rnoVUs, (y. Ju. 11.) stem smooth below, 
scabrous above ; leaves lance-ovate, acute, 
I serrate, scabrous above, pubescent and 
1 hoary beneath ; flowers few, terminal. 3-6 f. 
paitcijlo'nis, (y.) leaves lance-linear, acu- 
minate, serrate, .smoothish ; stem naked, 
trichotomous, few-flowered ; calyx close- 
imbricate ; divisions ovate. 4-5 f. S. 
trachelifo'lins, (y. Au. 11.) leaves ovate- 
lanceolate, oppo.site acuminate, serrate, 
triply-nerved, very scabrous on both sides; 
scales of the calyx lance-linear, ciliate ; 
outer ones longest. 3-4 f. 
decapeta'lm, (y. Sept. 11.) leaves ovate, 
acuminate, remotely serratj, 3-nerved, sca- 
;broas; scales of the calyx lanceolate, sub- 
I equal, sub-ciliate; rays 10 or 12. Flowers 
iu large terminal panicles. 
gigan"leufi, (y. Sept. 11..) leaves alter- 
nate, lanceolate, serrate, scabrous, paler 
beneath, nearly sessile, ciliate at the base j 
scales of the calyx lanceolate, ciliate ; 
flowers in a loo.se, terminal panicle ; raya 
12-14, not large. 5-6 f. 
atroru'hens, hispid, stem naked toward 
the summit, loosely paniculate ; 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 ria- 
j tive of Italy. 4 f. Flowers scarlet. Ex. 
[ tiihero'sus, (Jerusalem artichoke, y. S. 
I 2^.) leaves 3 nerved, scabrous; lower ones 
I heart-ovate, upper ones ovate, acuminate; 
petioles ciliate ; root tuberous. Natural- 
I ized, 4-8 i. 
