382 
ARETHUSA— ARTEMISIA. 
w. Ja. ^ .) stem dicliotomous, spreading ; 
leaves ovate, acute, subciliate ; calyx acute, 
sub-striate ; petals shorter than the calyx. 
5 i. 
stric"ta, (w. M. 11) glabrous, erect, many 
stems; leaves subulate-linear, erect ; pani- 
cles few-flowered; petals much longer than 
the calvx, which is oval-lanceolate, striate. 
Dry. 6-12 i. 
jjeploi'deii, (sea chickweed, Ju. 11 ) glab- 
rous ; leaves ovate or oblong, acute, fleshy; 
flowers sub-solitary, short-peduncled ; di- 
visions of the calyx obtuse, exceeding the 
corolla. 8-12 i. Lower Canada. 
pitch^fri (^.) erect, slender, glabrous, 
fastigiately branched, few-flowered ; leaves 
linear-filiform, obtuse, not fascicled; pe- 
duncles slightly glandular-pubescent ; pet- 
als oblong, somewhat exceeding the lan- 
ceolate, nerved sepals. Texas. Arkan- 
sas. 
ARETHU'SA. 18—1. (OrcMdea;.) 
hulhc/sa, (arethusa, r. J. 2^.) leafless; 
root globose ; scape sheathed, 1-flowered ; 
ca'yx with the superior divisions incurved, 
lips sub-crenulate ; flowers large, sweet- 
scented. Damp. 
ARGEMO'NE. 12—1. (Papnverace(B.\ 
mexicana, (y. Ju. leaves pinnatifid, 
epinose, gashed ; flowers axillary. Var. 
albiflora. S. 
ARIS"TIDA. 3—2. (Grmninece.) 
dichofoma, (beard grass, poverty gi'ass, 
2^.) cespitose ; culm dichotomous; 
flowers racemose-spiked ; lateral awns very 
short, intermediate ones contorted. 8-12 i. 
S2i>2cifor"mis (11-) flowery crowded to- 
gethei", somewhat spiked ; the middle awn 
villous at the base. 3 f. S. 
gra'cilis, {11-) stem very slender; flow- 
ers in spikes; spikelets few-flowered, some- 
what remote, appressed ; lateral awns 
short, erect, the intermediate ones longer, 
expanding. 1 f. jS. 
iuberado' sa, culm erect, dichotomous, 
joints tumid with small tubercles in 
the axils ; panicles rigid ; glumes keeled, 
with long subulate points ; paleas stiped ; 
awns smooth, convolute. 3. f S. 
ARISTOLO'CHIA. 18—6. (ArisiolocMcc.) 
serpenta'ria, (p. J. 11.) leaves heart- form, 
oblong, acuminate ; stem zigzag, ascending ; 
peduncles radical ; lips of the corolla lan- 
ceolate. Virginia snake-root. A variety 
has very long, narrow leaves. 
si'pho, (Dutchman's pipe, J. T?) leaves 
heart-form, acute ; stem twining ; pedun- 
cles 1-flowered, furni.'^hed with an ovate 
bract; corolla ascending, the border 3-cleft, 
equal. A vine climbing over large trees. 
Flowers solitary, brown. 
tomento'sa, (g-y.) stem twining ; leaves 
nearly round, cordate, tomentose under- 
neath; corolla villous ; border 3-cleft, nearly 
equal. S. 
hastata, stem fluxnose, simple, erect ; 
leaves somewhat coi'date, hastate, acute : 
flowers on scapes ■ lip of the corolla ovate. 
ARMENIA'CA. 11— J. (Rosaceoi.) [From 
Armenia.] 
I vulga^ris, (apricot, ^ .) leaves snb-coR 
date; stipules palmate. Yw. prefcox,GVir\y 
• apricot. Fruit small, yellow. Var. persi- 
j cai'des, peach apricot. Fruit sub-corn 
pressed. 
I ARNI'CA. 17—2. (Corymhiferm.) 
j mulicau'lis, (y. J. Ju. 2/.) hirsute; radl 
I cal leaves opposite, decussate, broad-lanco- 
{ olate, nerved, and toothed ; stem nearly 
I leafless, divided near the summit into a few 
1 1-flowered branches. Flowers large. 2-3 
I f. Pine ban-ens. Leopard's bane. 
1 plantagin"ea, (y. Ju. 2-f.) glabrous, 
! leaves entire, glabrous both sides, acute, 
' 3-nerved ; radical ones lance-spatulate, ter- 
minating in a narrow petiole at the base ; 
cauline ones opposite, lanceolate sessile ; 
stem 1-flowered, 7 i. 
fuV'gens, (y. Ju. li) hairy; r ad liial leaves 
lanceolate, obtusish, tapering to the base ; 
petioles 3-nerved ; cauline leaves opposite, 
remote, linear; stem 1-flowered. 1 f. S. 
clay'toni, (y. Ju. ^ .) hirsute ; radical 
leaves decussately opposite, oblong ovate, 
sub-dentate; stem somewhat leafless; top 
divided into 1-flowered peduncles. 2 f. 
S. 
ARO'NIA. 11—5. {Rosac^m.) [A Greek word. 
signifying the medlar-tree.] 
hotrya'pinm, (shad-bush, june-berry, w 
Ap. 2^.) leaves oblong-oval, cuspidate, glab- 
rous when mature, (when first expanded 
lanceolate and downy) ; flowers racemed ; 
petals linear ; germs pubescent ; segments 
of the calyx glabrous. 
arbutifc/lia, (M. 1^ .) unarmed ; leaves 
ovate-oblong, acute, serrrdate, tomentose 
beneath; flowers in corymbs; calyx tom- 
mentose. Low thickets. 2-4 f. Redchoke- 
berry. 
ova'lis, leaves roundish-elliptical, ovate, 
smooth ; flowers in racemes ; petals obo- 
vate ; germs and segments of the calyx 
pubescent. Swamps. A small shrub ; ber- 
ries black and eatable. Medlar-bush. 
songum"ea, (bloody choke-berry, w. M- 
^.) leaves oval, obtuse at both ends, mu- 
cronate, serratures very slender; racemes 
few-flowered ; calyx glabrous ; petals lin- 
ear, obtuse. 3 6 f. 
alnifo'lia, ( Tp .) smooth ; leaves roundish, 
upper part toothed, pinnately-nerved, sub- 
glaucous beneath ; raceme simple, elon- 
gated. Fruit black and sweet. S. 
ARTEMI'SIA.* 17—2. (CorymbifercE.) fFrom 
an ancient queen.] 
pon"tica, (Roman artemisia,) leaves 
downy beneath, cauline ones bipinnate; 
leafets linear; branches simple; flowers 
roundish, peduncled, nodding. Ex. 
absiuth"iiim, (wormwood, IX ■) stem 
branching, panicled ; leaves hoary, radical 
ones triply pinnatifid, divisions lanceolate, 
toothed, obtuse; cauline ones 2-pinnatifid o» 
pintiatifid, divisions lanceolate, acutish 
floral ones undivided, lanceolate. Natt> 
ralized in most mountain districts of New 
England. 
* The cultivated plant often called Arte 
inisia, belongs t-j the gpnus Cluysantl.enmio 
