76 
ANTIRRHINUM-ARACHIS, 
ANTTRRniNUM. 13—2. (BignonicB.) [From anti, against, ris, nose, said to be so named 
from an unpleasant odour in some of its species. 
Una'ria, (snap-dragon, y. Ju. %.') erect, glabrous; leaves scattered, lanceolate- 
linear, crowded together ; spikes terminal, dense-flowered ; calyx glabrous, 
shorter than the spur. Flowers large. Toad-flax. Naturalized. 12-18 i. 
elat'ine, (y. Ju. ©.) procumbent, hairy; leaves alternate, hastate, entire; pe- 
duncles solitary, axillary, very long. Flowers small, bluish white. Intro- 
duced. 
trianthop'^orum, leaves whorled, lanceolate, 3-parted; stem decumbent; ra- 
cemes terminal, few-flowered. Flowers large. Ex. 
APARGIA. 17—1. (Cichoracem.) [A Greek word, signifying succory.] 
autumnalis^ (false hawk- weed, y. J. '2|..) scape branching; peduncles scaly ; 
leaves lanceolate, toothed, orpinnatifid, smoothish. Flowers bright yellow, 
resembling the dandelion. Fields and road-sides. Introduced, 
APIOS. 16 — 10. (LeguminoscB.) [From the Greek apios, mild, in allusion to the root.] 
Uibero'sa, (ground-nut, dark p. Ju. (j^.) stem twining; leaves pinnate, with 7 
lance-ovate leafets ; racemes shorter than the leaves ; root tuberous, farina- 
ceous, in taste resembling the cocoa-nut, and highly nutritious. Ex. 
APrUM. 5—2. iUinbellifer(B.) [Supposed to be derived from the Greek apes, bees, because 
they are fond of the plant.] 
petroselinum, (parsley, Ju. cauline leaves linear ; involucrum minute. Ex. 
grave' olens, (celery, Ju. J^.) stem channelled ; cauline leaves wedge-form. Ex. 
APLECTRUM. 18—1. {OrchidecB.) [From a, without, p^ec<7-o», spur.] 
hiema'lis, (g-p. M. %..) leaf solitary, ovate, striate ; lip trifld, obtuse, with the 
palate ridged; central lobe rounded, crenulate. Shady woods. Flowers 
pendulous, 1 f, 
APOGON. 17—1. (Cichoracece.) [From a, without, jjo^-ow, beard.] 
humiV'is, (y. Ap. stem glabrous; radical leaves sessile ; cauline, ligulate, 
acute, leaves entire, glabrous. 
APOCYNUM. 18—5. {Apocyneoe,.) [From opo, against, and fe^nos, a dog.] 
androscemifo'lium, (dog-bane, r-w. J. 'Z|..) stem erect and branching ; leaves 
ovate; cymes lateral and terminal; tube of the corolla longer than the 
calyx, with a spreading limb. 3 f. 
cannab"inum, (g-y, J. 'Zj..) leaves lanceolate, acute at each end, smooth on both 
sides ; cymes paniculate ; calyx as long as the tube of the corolla. 
AQUILEGIA. 12—5. (RanunculacecB.') [From the Latin aqua, water, and ago, to gather, so 
called from the shape of its leaves, which retain water.] 
canaden"sis, (wild columbine, r, and y. Ap. %:) horns straight; stamens ex- 
sert, leaves decompound. Growing frequently in crevices of rocks. 15 i, 
cmru'lia, (b, J, %.') horns twice as long as the petals ; nectaries acute ; seg- 
ments of the leaves deeply lobed, 18-1. Southern. 
vulgaris, (garden columbine, J. %.) horns incurved ; leafy ; stem and leaves 
glabrous ; leaves decompound. The nectariferous horns become numer- 
ous by culture ; one hollow horn within another. 15 i. Ex. 
ARABIS. 14—2. (CrucifercB.) [Probably named in Arabia.] 
lyra'ta, (w. A. J*.) stem and upper leaves smooth and glaucous ; radical leaves 
lyrate-pinnatifid, often pilose ; stem branched at the base ; pedicels much 
longer than the calyx. 10 i. "Vj 
canaden'sis, (w. J. stem leaves sessile, oblong-lanceolate, narrow at the 
base, pubescent; pedicels pubescent, reflexed in the fruit; siliques pendu- 
lous, sub-falcate, nerved. 3 f. 
rhombo'idea, (spring cress, w, M, %.) leaves glabrous, rhomboidal, repand- 
toothed, the lower ones nearly round, on long petioles ; root tuberous, 15 i. 
Wet, 
ARACHIS. 16—10. {Leguminosoi ) [A Greek word, signifying a rooting plant ] 
hypogcea, (pea-nut, false ground-nut, ©.) stem procumbent, pilose; leaves 
pinnate ; flowers axillary ; peduncles become long, and the fruit is ripenea 
under ground. 
