ORIG ANUM—ORYZ A. 121 
lateral ones longest; spur clavate, shorter than the germ; bracts longer 
than the flowers; stem leafless. 3-0 i. 
tridentoJta , (w. Ja. % ) lip ovate-lanceolate, obtuse, 3-toothed ; petals obtuse; 
spur filiform, longer than the germ. 6-12 i. 
jla'va , (y. Ju. ) lip 3-cleft, entire ; middle division larger ; spike compact; 
bracts longer than the flower. 1-2 f. 
fimbria 1 La, (p. Ju. 7]-) lip 3-parted, lobes all incisely fimbriate, and wedge- 
form ; segments of the perianth oval, spreading, fimbriate toothed; spur 
filiform, clavate, longer than the germ; leaves broad-lanceolate; purple 
flowers, in a large spike. 2 f. Meadows. 
psyco'dcs, (y. J. %..) lip 3-parted, many-cleft; segments of the perianth ob¬ 
tuse; spur filiform, clavate, of the length of the germ; flowers in a large, 
terminal spike. . 
cilia 1 ris , (orange, y. J. T 7 .) lip oblong-lanceolate, pinnately ciliate, twice as 
long as the germ. Stem 1-2 f. Leafy ; smooth. Swamps. 
dilita'ta , (giant orchis, w-y. J. I 7 .) spur shorter than the germ ; lip entire, lin¬ 
ear, with the base dilated, of the length of the spur ; stem leafy. In woods 
the flowers are green, in meadows, white. 1-4 f. 
bractedba 1 , (vegetable satyr, g-w. M. I 7 .) lip linear, emarginate, obsoletely 3- 
toothed; spur short, sub-inflated, somewhat 2 -lobed; bracts twice as long 
as the flowers, leaf-like, spreading; root palmate. 6-10 i. 
ORIGANUM. 13—1. (Labiatce.) [From oros, a mountain, and gano, to rejoice, so called be¬ 
cause it grows upon the mountain sides.] 
vulga're, (wild marjoram, r. Ju. A) spikes round, panicled, heaped; bracts 
ovate, longer than the calyx. 1-2 f. 
major a'na , (sweet marjoram, T 7 .) spikes roundish, ternate, compact, pedun- 
cied ; leaves petioled, oval, obtuse, smoothish. 6-12 i. Ex. 
ORNIT HOG ALUM. 6 —1. ( Asphodeli .) [From ornis, a bird, and gala, milk, from the colour 
of its flowers.] 
umbella'turn , (star of Bethlehem, M. 7),.) flowers corymbed, peduncles longer 
than the bracts ;■ filaments subulate. Naturalized. 6-8 i. 
bractea'tum , (p. 9_j_.) scape bracted, 1 -fl'owered, terete; petals ]ance-oblong,ob- 
tusish ;• filaments linear ; leaves channelled, filiform. 4 i. S. 
ORNUS. 2— 1 . ( Jasmine(B .) [From the Hebrew, orn, an ash.] 
america'na , (M. T?.) leafets broad-ovate, serrate, terminal one obcordate. 
Shady woods. Resembles the genus Fraxinus. 
euro'pea, affords the manna of commerce. The American Ornus is thought 
by some to be but a variety of this. Ex. 
OROBANCHE. 13—2. ( Pediculares .) [From orobos , the wild pea, and agcho , to suffocate, 
so called because it twines around the Orobos and destroys it.] 
unifio'ra , (cancer-root, b-w. M. stem very short; peduncles 2, elongated, 
scape-form, 1 -flowered, naked ; scales smooth, concave; lobes of the corolla 
oblong-oval, with a pubescent, coloured'margin. 4-6 f. Parasitic. Woods. 
america'na , (Ju. §j|) stem simple, covered with ovate-lanceolate, imbricate 
scales; spike terminal, smooth; corolla recurved; stamens exserted ; flow¬ 
ers brownish yellow, the spike covered by the scales of the stem. 6-8 i. 
Parasitic. Woods. 
OROBXTS. 15—10. ( Leguminoscs ,.) [From erepto, to eat, the root being considered nutritious.] 
dis"par , (ervum, w-y. J. ffj.-) leaves unequally pinnate; leafets linear, obtuse; 
stipules ovate, acute; racemes sessile. 
tubero'sus , (the heath-pea.) The Scotch islanders chew the root; they hold 
the plant in high esteem. Ex. 
ORONTIUM. 6 —1. ( Aroidece .) [From Oronles .] 
aqv4l"icum , (golden club, y. M. ffj..) leaves all radical, lance-ovate; scape 
cylindrical, spiked ; flowers with a peculiar smell. Water. 1-2 f. 
ORTHOCARPUS. 13—2. ( Pediculares .) [From orthos , erect, and carpos, fruit.] 
lute'us , (y. Ju.) stem simple, terete, hirsute; leaves alternate, sessile, acute, 
entire; calyx-bracts and leaves viscid-pubescent. 12-14 i. S. 
ORYZA. 6 —2. ( Graminecc .) [From orez, Arabian.] 
sati'va , (rice, 0.) culm jointed ; leaves clasping; panicle terminal. Ex. 
