AttALIA—ARTEMISIA. 
77 
ARALIA. 5—5. (Aralia.) [From cira, a bank in the sea, in allusion to the habit of the plant.] 
racemo'sa , (spikenard, O. w. J. %.) spreading branches; petioles 3-parted, the 
partitions 3-5-leaved; leafets often heart-form ; branchlets axillary, leafy; 
umbels many, sub-panicled, leafless above. Damp. 4 f. 
nudicaulis, (g-w. J. %.) stem hardly a caulis; leaf solitary, terquinate ; scape 
shorter than the leaf; umbels few. Wild sarsaparilla. 15 i. S. 
ARBUTUS. 10—1. (Erica.) f 
uva-ur"si , (bear-berry, kinnikinnick, w-r. M. ) stem procumbent; leaves 
wedge-obovate, entire ; berry 5-seeded. Dry, barren sand-plains, &c. "Very 
abundant about the great lakes. 
ARCTIUM. 17—1. (Cinarocephala.) [From aristas , a bear, so called on account of its rough¬ 
ness.] 
lap"pa, (burdock, r. Au. Q|.) cauline leaves heart-form, petioled, toothed; 
flowers panicled, globose; calyx smooth. 
ARENARIA. 10—3. (Caryophyllec e.) [From arena, sand.] 
lateriflor"a, (sand-wort, w. J. A) stem filiform, simple; leaves ovate, obtuse, 
sub-triple-nerved ; peduncles lateral, solitary, elongated, 2-cleft; one pedi¬ 
cel middle-bracted ; corolla longer than the calyx. 6-10 i. 
glabra, (A ) very smooth ; stems numerous, erect, filiform; leaves subulate, 
linear, flat, spreading; pedicels 1-flowered, elongated, divaricate; sepals 
ovate, obtuse shorter than the petals. Mountains. Flowers large, white. 
Stem 4-6 inches, high, erect, slender. 
ARETHUSA. 18—1. (Orchidea.) 
bulbo'sa , (arethusa, r. J. %.) leafless ; root globose; scape sheathed, 1-flower¬ 
ed; calyx with the superior divisions incurved; lip sub-crenulate. Flow¬ 
ers large, sweet-scented. Damp. 
ARGEMONE 12—1. (Papaveracea.) 
mexicana , (y. Ju. ®.) leaves pinnatifid, spinose, gashed; flowers axillary. 
Var. albijlora. S. 
ARISTOLOCIIIA. 18—6. (Aristolochia.) 
serpenta'ria, (p. J. ?}..) leaves heart-form, oblong, acuminate; stem zigzag, 
ascending; peduncles radical; lips of the corolla lanceolate. The Vir¬ 
ginia snake-root. There is a variety with very long, narrow leaves. 
ARMENIACA. 11—1. (Rosacea.) [From Armenia.] 
vulga'ris, (apricot, J?.) leaves sub-cordate ; stipules palmate. Var. precox , 
early apricot. Fruit small, yellow. Var. persicoides, peach apricot. Fruit 
sub-compressed. 
ARNICA. 17— 2. (Cory mbifera.) 
nudicantis, (y. J. Ju. Q^.) hirsute; radical leaves opposite, decussate, broad- 
lanceolate, nerved, and toothed; stem nearly leafless, divided near the sum¬ 
mit into a few 1-flowered branches. Flowers large. 2-3 f. Pine barrens. 
Leopard’s bane. 
ARONIA. 11—5. (Rosacea.) [A Greek word, signifying the medlar-tree.] 
botrya'pium, (shad-bush, june-berry, w. Ap. 7J..) leaves oblong-oval, cuspidate, 
glabrous when mature, (when first expanded, lanceolate and downy;) flow¬ 
ers racemed; petals linear; germs pubescent; segments of the calyx glab¬ 
rous. 
arbutifolia, unarmed; leaves ovate-oblong, acute; serrulate, tomentose be¬ 
neath; flowers in corymbs; calyx tomentose. Low thickets. May. Shrub. 
2-4 f. Red choke-berry. 
ova'lis, leaves roundish-elliptical, ovate, smooth ; flowers in racemes; petals 
obovate; germs and segments of the calyx pubescent. Swamps. A small 
shrub ; berries black and eatable. Medlar bush. 
ARTEMISIA.* 17—2. (Cory mbif era.) [From an ancient queen of that name.] 
pon"tica, (Roman artemisia.) leaves downy beneath ; cauline ones bipinnate; 
leafets linear ; branches simple ; flowers roundish, peduncled, nodding. Ex. 
* The cultivated plant often called Artemisia, belongs to the genus Chrysanthemum. 
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