HYDRASTIS— HYPO XIS. 
113 
slightly cordate at base, acuminate, coarse- ] 
ly toothed, glabrous underneath; cymes i 
generally radiate. 
qnercifo'lia, (w-r. M. J.) leaves oblong, 
einuate and lobed, dentate, tomentose un- 
derneath; cymes radiate, paniculate. 4-5 f. 
HYDRAS"TIS. 12—12. {Ranunculacca.) [From 
vdor, water.] 
canadeu"sis, (yellow pucoon, w-r. Ap. 
2^.) stem with two opposite leaves above ; 
leaves petioied, emarginate at the ba.se, 
palmate, serrate, gashed; peduncle termi- 
nal, solitary, 1-flowered ; roots yellow. 
Used by the Indians as a dye. 
HY'DROCHA'RIS. 20—9. (.Hydrocharides.) 
[From udor, water, and charts, grace, this 
iillle plant being considered as ornarneiitai 
to placid waters.] 
spongto'sa, monoecious, leaves floating, 
round, cordate, reticulate underneath, witli 
vesicles at base. 
liYDROCHLO'A. 19—6. (Graminea.) [From 
udor, water, and elaia. oil, because the leaves 
have a very oily appearance.] 
Jl,ui tans. (Ju. 2^.) floating in water, culm 
long, slender, branching ; leaves linear, flat; 
spike solitary, axillary, setaceous ; about 
4 flowered. 
KYDROCOT"YLE. 5—2. (UmbellifercE.) [From 
udor, water, kotule, a cavity.] 
umbella'ta. (w. M, 2/.) leaves peltate, 
crenate, emarginate at base ; umbels many- 
flowered, on long peduncles. 
vulga'ris, (g-w. J. 1X-) leaves orbicular, 
J)eltate, slightly crenate ; scape interrupted- 
y spiked, tew-flowered. 
raiiunculoi'des, (Ju. 2^.) creeping; glab- 
rous; leaves orbicular-reniform, somewhat 
5-lobed ; lobes obtuse, crenate, the middle 
one smaller and more distinct ; umbels sub- 
capitate, few-flowered ; pedunculate, 5 to 
10 flowered. 
america'na, root tuberous ; stem filiform, 
with creeping suckers ; leaves reniform, 
slightly 7-lobod, crenate ; umbels 4-6 flow- 
ered, axillary ; petals greenisli-white. Wet 
places. 
iuterrnp"ta, stem creeping at the joints ; 
leaves peltate; flowers pinnate, white, in 
email umbels, much shorter than the petiole.^. 
Marsh pemiy-wort. 
HYDRO'LE.i. 5—2. (ConvoJvuli.) [From 
udor. water, elaia oil.] 
quadrivaVviS, (b. Ju. 2i.) spino.se. pilose ; 
leaves long-lanceolate ; flowers nearly ses- 
sile, axillary. 
corymbo'sa, without spines, flowers ter- 
minal. 
spino'sa, leaves lanceolate, hirsute ; flow- 
ers terminal. 
HYDROPEL"TIS. 12-12. (RanunculacecB.) 
' [From udor, water. pe]te, a shield.] 
jmrpu'rea, (water-shield, p. Au. 2^.) leaves 
peltate, tinged with purple ; peduncles sol- 
itary, 1-fiowered. Whole plant covered 
with a viscid gelatine ; stem long, floating. 
HY1)R0PHYL"LUM. 5-1. {Boraginem.) 
[From udor, water, phyllum, a leaf.] 
virgiiii' cum, (water leaf, w. J. 2X-) smooth- 
ish ; leaves pimiatifld and pinnate ; se^ 
meiita with deep seiratures ; clusters ol 
flowers crowded; peduncles larger than 
the petioles. 18 i. 
canaden" se, somewhat hairy ; leaves 
large, about 5-7-lobed ; flowers blue and 
white, in clusters. 
linea're. (Ap. 2^^.) pilose; leaves linear; 
racemes elongated. S. 
HYOSCYA'MUS. .*)— 1. {Solana^ [From sms, 
a swine, and kuavws, a bean, because the 
plant is unsightly.] 
ni'ger, (hen-bane, y-p. Ju. $ .) leaves 
clasping, sinuate ; flowers veiny, sessile. 
Introduced. 
HYPER"lCUIVf. 12—5. {Hypericce ) [From 
uptr, over, eiknn. evil spirits, because it was 
thought to have power over such.] 
corymbo'aitm, (y. Ju. 2^.) erect, glabrous 
darkly-punctate ; stem terete, branching 
leaves clasping, obloni^-oval, obtuse ; cor 
ymbs terminal, brachiate, dense-flowered 
divisions of the calyx lanceolate, acute 
18-24 i. 
■ptirvijio'rum, (y. Ja. 2^.) erect, small, 
glabrous ; stem dichotomous-ramo.se, some- 
what 4-sidod ; leaves ovate oblong, sub- 
cordate, obtuse, nerved, sessile ; panicles 
terminal, diohotomous corymbed ; petals 
shorter than the lanceolate calyx. 6 12 i. 
perfora'tum, (y, J. 2^.) erect, branching; 
stem 2-edged ; leaves oblong, obtuse, trans- 
parently punctate ; panicle terminal, bra- 
chiate, leafy ; petals twice as long as the 
acute, lanceolate calyx; 3 styles. St. John's 
wort. 
virgiii"icuin, (p. Au. 2^.) flowers with 9- 
12 stamens, distinctly arranged in 3 parcels, 
and separated by nectaries ; 3 styles ; leaves 
oval, obtuse, clasping ; stem compressed. 
1-2 f. 
ascyroi'deii, smooth ; stem square, winged 
at the base ; leaves sessile, acute ; styles 
free, as long as the stamens; flowers and 
leaves large ; capsules nearly as large as 
nutmegs, yellow. River bank.s. 
piiiicta'tnm, stem terete ; leaves sub- 
clasping; flowers in dense corymbs; styles 
3, longer than tlie stamens. Whole plant 
dotted with black. 
canaden" se, erect, small, few-flowered; 
stem 4-.sided, dichotomous above ; leaves 
sessile, linear ; capsules red. 9 19 i. 
kalmiaf imm, (laurel-leuved hypericura,^ 
shrnbby, very branching corymbs terminal. 
3-4 f Cultivated as ornamental. 
prolifi"cum,\eiLveSi more narrow than the 
preceding; llowers smaller, numerous. 
Cultivated. 
HYPOPEL"TIS. 21—1. (Filices.) [From 
upo, under, and pcUe, a shield ] 
obtu'm, (Au. li.) frdnds 8-14 inches, high, 
bi-pinnate ; divisionssub-remote ; segments 
oblong, the lower ones crenate-dentate ; 
rachis pubescent above. Rocky woods. 
HYPOX"IS. 6-1 (Narcissi.) 
eiec"ta, (star-grass, y. Ju. 2i.) pilose; 
scape 2-3-flowered ; leaves lance-linear; 
divisions of the corolla lance-oblong. Var 
gramin"enXvAS longer and narrower leaves ; 
more flowers, longer lance linear divisions 
to the corolla, and altogether a more grassy 
appearance. 
