134 
OIUGANUM—OSMUNDA. 
late, obtuse, 3-toolhed ; petals obtuse ; spar 
filiform, longer than the germ. 6-12 i. 
jia'va, (y. Ju. 2^.) lip 3-cleft, entire ; mid- 
dle division larger ; spike compact ; bracts 
longer than the flower. 1.-2 f. 
fimbria' ta, (p. Ju. 11) lip 3-parted ; lobes 
all incisely fimbriate and wedge-form ; 
Begments of the perianth oval, spreading, 
fimbriate-toothed ; spur filiform, clavate, 
longer than the germ; leaves broad-lance- 
olate; purple flowers, in a large spike. 
2 f. Meadows. 
ohnole'ta, (J. 11) lip oblong, lanceolate, 
undivided ; petals erect ; horn obtuse, as 
long as the germ ; bracts very short ; root 
oval or palmate. 
vires" ceiLx, (g. Ju. TX) lip lanceolate, cre- 
nate ; petals conni vent ; bracts longer than 
the flowers ; spur sub-inflated, obtuse ; root 
fascicled. 12-18 i. 
hyperho'rea, (g-y. Ju. 11) lip lanceolate, 
as large as the spreading petals; spur sub- 
ulate, shorter than the germ ; spike ovate ; 
bracts as long as the flowers ; roots fascicled. 
obtusa'ta, (21) lip linear, very entire, 
longer than the horn which is the length of 
the germ ; leaf solitary, radical, sub-wedge- 
form, obtuse ; roots fascicled. 
rotundifo'lia, {2X) lip 3-cleft, middle seg- 
ment 2-cleft ; spur shorter than the germ ; 
leaves roundish-oval ; root fascicled. 
nive'a, (w.) lip linear, oblong, entire ; pe- 
tals spreading ; horn filiform, longer than 
the germ ; lower leaves linear, very long, I 
upper ones subulate. S. | 
vir"idis, (g-w. Ju.) lip linear, 3 toothed 
the apex ; petals connivent ; horn obtuse, j 
sub-inflated ; bracts much longer than the 
flowers ; root fascicled. 3 i. S. 
hidenta' ta, lip oval, oblong, 2 toothed at 
the base ; petals ovate, expanding ; horn 
shorter than the thickened germ; leaves | 
narrow-lanceolate ; stem nearly naked. 
12-18 i. S. 
See Hahenaria. 
ORIGA'NUM. 13—1. (LaMatce.) [From oros, 
a mountain, find gono, to rejoice, so called 
becau.se it grows upon the mountain sides.] 
vidga're, (wild marjoram, r. Ju. IX) spikes 
round, panicled, heaped ; bracts ovate, 
longer than the calyx. 1-2 f. 
mr/jora'na. (sweet marjoram, Ip .) spikes 
roundish, teriiate, compact, peduncled ; 
leaves petioled. oval, obtu.se, smoothish. 
6-12 i. Ex. A native of Portugal. 
ORNITHOCALUM. 6—1. (AsphodeJi.) [From 
orni.i, a bird, and gala, milk, from the color 
of its Howers.J 
umhella'tum, (star of Bethlehem, M. 2^.) 
flowers corymbed ; peduncles longer than 
the bracts ; filaments subulate. Natural- 
ized. 6 8 i. 
bra ctc'i' turn. (p. 7X) scape bracted, 1- 
flowered, terete; petals lance-oblong, ob- 
tusish; filaments linear; leaves channeled, 
filiform. 4 i. ^\ 
'pyramiddfle, (prussian asparagus,) a na- 
tive of Spain. 
Idtifo'l'mm, a native of Egypt. 
Cauda' tvm, Cape of Good Hope. 
OR"NUS. 2—1. (Jasminea.) [From the He- 
brew orriy an ash. J 
aTnerica'na, (M. I7 .) lenfet.'' broad-ovate, 
serrate, terminal one obcordate. Shady 
woods. Resembles the genus fraxinus. 
eitrope'a, atlbrds the manna of connneree. 
The American ornus is thought by some to 
be but a variety of this. Ex. 
OROBAN"CHE. 13-2 (Peihculares.) [From 
orobos, the wWd pea, and agchein, to suffocate, 
so called because it twines around the orobos 
and destroys it.] 
unijio'ra., (cancer-root. b-w. M. IL) stem 
very short ; peduncles 2, elongated, scape- 
form, 1-flowered, naked ; scales smooth, 
concave ; lobes of the corolla oblong-oval, 
with a pubescent, colored margin. 4-6 f 
Parasitic. Woods. 
america'na, (Ju. 11) stem simple, covered 
■with ovate-lanceolate, imbricate scales , 
spike terminal, smooth ; corolla recurved ; 
stamens exserted ; flowers browni.sh yellow, 
the spike covered by the scales of the stem 
6-8 i. Parasitic. Wood.s. 
ludovicia' na, (p.) pulverulent, pubescent , 
stem low, simple ; flowers and ovate-acute 
scales sub-imbricate ; calyx 2-bracted ; co- 
rolla recurved ; stamens enclosed, smooth. 
3-4 i. 
fatcicula'tn, (p. Ju.) stem .short, simple ; 
peduncles numerous, naked, nearly termi- 
nal, about the length of the stem ; scales 
few, ovate, concave, pubescent. 4-5 i. 
ma'jor, stem- erect, somewhat scaly and 
bulbous at the base, terminating in a wpike 
of rather large purplish or brownish flow- 
ers. Parasitic. Ex. 
ru'bra, very fragrant, similar in appear- 
ance to the preceding species. Ex. 
ORO'BUS. 16—10. {LegwAnosa) [From 
erej)to, to eat, the root being considered nu- 
tritious.] 
dis"par, (ervum, w-y. J. 11) leaves une- 
qually pinnate ; leafets finear, obtuse ; sti- 
pules ovate, acute ; racemes se.ssile. 
tubero'sus, the heath-pea. The Scotch 
i.slanders chew the root ; they hold the 
plant in high esteem. Ex. 
ORON"TIUiVI. 6—1. {AroidcB.) [From Orontes.-^ 
aqnaficnm, (golden club, y. M. 11) 
leaves all radical, lance-ovate ; scape cylin- 
drical, spiked ; flowers with a peculiar 
smell. Water. 1-2 f. 
ORTHOCAR'TUS. 13—2. ( Pedicular es.) 
[From orthos, erect, and carpos, fruit.] 
hitdus, (y. Ju.) stem simple, terete, hir- 
sute ; leaves alternate, sessile, acute, entire ; 
calyx,bracts and leaves viscid pubescent. 
12-14 i. B. 
ORY'ZA. 6—2. (Graminece.) [From orez, 
Arabian.] 
sati'va, (rice, 0.) culm jointed; leaves 
clasping ; panicle terminal. Ex. 
ORYZOP"SIS. 3—1. {Graminecp.) [From 
oruza, rice, and opsis, resemblance.] 
as'perifo'lia, (mountain vice, M. 11) culm 
nakedi.sh; leaves rigid, erect, pungent at 
the point ; flowers in a racemose panicle. 
18 i. 
OSMORIII'ZA. (See 1Jrasper"mum.) 
OSMUN"DA. 21—1. (Filices.) [From Os- 
mund, who first used it as a medicine.] 
cinnamo'mea, (flowering-iern, y. J. Z^.) 
