ORN ORP 
ORT OSM 
Orntthopus, Linn. From ornithos, a bird, and pout, 
a foot ; the pods are like the claws of a bird. Linn. 
17» Or. 4, Nat. Or. Leguminosx. Plants of very 
little beauty. The seed should be sown in the 
open ground in spring. Synonyme: 1. O. perpusillus 
intermedia. 
compressus . . Yellow . 6, H. A. S. Ear. . .1737 
perpusillus . . Red wht. . 7,.H. A. Britain . . 
nodosus . . . AVht. red . 6, H. Tr. A. Britain . . 
satiTus, 1 . . .'Violet . . 6, H. A. Portugal . 1818 
Ornus, Scopoli. Oren, Hebrew, orci'no*, Greek, orntM, 
Latin ; names for the wild ash. Linn. 2, Or. 1, 
Nat. Or. Oleacea. All the species of Flowering 
Ash are ornamental and useful; they are easily 
cultivated, and may be raised from seeds, as those 
of Fraxinus, or they may be increased by budding 
or grafting on the common ash. Synonyme: !• 
Fraxiniu striata. 
americana . . . White. . 5, H. De. T. N. Amer. . 1820 
europ®a . . . AVhite . . 5, H. De. T. Italy . .1730 
floribunda . . . White . . H. De. T. Nepal . . 1822 
rotundifdlia . . White. . 5, H. Do. T. Italy . . 1()97 
striata, 1 . . . Whitish . 4, H. De. T. N. Amer. . I8l8 
Orobanche, Linn. From orobos, vetch, and ancho, 
to strangle ; supposed to kill the plants on which 
it grows. Linn. 14, Or. 2, Nat. Or. Orobanchacea. 
The Broom Rape is a genus of curious parasitical 
plants, none of which are properly cultivable. 
O. rntyor is powerfully astringent, 
caryophyllacsa. . Parasite. England . . 
coerulea . . . Blue . . 7. Parasite. Briuin . . 
elatidr .... Yellow . ^ Parasite. Briuin . . 
major .... Brown . . 6, Parasite. Briuin . . 
minor .... Yel. wht. . 7i Parasite. Briuin . . 
ramosd .... Br. pur. . 8, Parasite. BriUiir . . 
rubrd .... Red . . 8, Parasite. Briuin . . 
OrSb&s, Linn. From oro, to excite, and bous, an ox ; . 
the Orobos of Theophrastus was the name of a plant 
used for fattening oxen. Linn. 17, Or. 4, Nat. Or. 
Leguminosce. The plants of this genus deserve to 
have a place in every flower-border, on account of 
their very elegant pea-blossoms. Any light soil 
suits theni, and they are readily increased by 
dividing the plants at the roots in spring, or by 
seeds. Synonyme: 0. Gmelini. 
ilbus . . ! .White. . 4, H. Her. P. Austria .1794 
alpOstrls . . . Purple . 6, H. Her. P. Hungary . 1817 
americOnus . . Pa. pur. . G. Ev. S. Jamaica . 1731 
angustifOlIQs . White . . 4, H. Her. P. Silteria . . 1766 
atropurpureOs . Purple . 5, H. Her. P. Algiers . . 1826 
auT&otiOs . . . Yellow . 6, H. Her. P. Iberia . . 1818 
canOscins . . . Wht. blue 5, H. Het. P. France . . 1816 
coccineus . . . Scarlet . 4, H. Her. P. Vera Crui . 
unijhgus . . Scarlet . 4> H. Her. P. N. Amer. . 
diraricOttis . . Purple . 6, H. Her. P. Pyrenees . 1816 
erOctus . . . Yel. red . 7, H. Her. P. 
Fiscb£rl . . . Purple . 4, H. Her. Cr. Siberia . . 
formOsOs . . . Purple . 6, H. Her. P. Caucasus . 1818 
hirsutQs ... Red . . 5, H. Her. P. Thrace . .1822 
b&mllis . . . Purple . 7> H. Her. P. Dahuria . 1825 
Jord&nl ... Blue . . 6, H. Her. P. Lucania . 1830 
l&cteus, 1 . . . White . . 4, H. Her. P. Caucasus . 1820 
laevigStus . . . Yellow . 6, H. Her. P. Hungary . 1820 
lathyroldes . . Blue . . 6, H. Her. P. Siberia . .1758 
laxindrus . . . Violet . . 6. H. Her. P. Candia . . 1820 
luteus .... Li. yel. . 6, H. Her. P. Siberia . . 1759 
multiflbrus . . Pa. red . 7. H. Her. P. Italy . . 1820 
niger .... Purple . 6, H. Her. P. Briuin . . 
ochroleQchs . . YeL wht. . 6, H. Her. P. Hungary . 1816 
pallesc^ns . . White . • 4, H. Her. P. Tauria . . 1823 
paucifldrus . . Purple . 6, H. Her. P. . 1820 
pisjfdrmis . . Purple . 5, H. Her. P. S. Eur. . . 1822 
pyrenitlchs . . Purple . 5, H. Her. P. Pyrenees . 1699 
saxatllls . . . Purple . 7, H. A. S. France . 1820 
sylvatlciis . .• Cr. pur. . 6, H. Her. P. Britain . . 
tenuifolius . . Purple . 6, H. Her. P. Europe . . 1810 
Toumefortii . . Yel. pur. . 6, H. Her. P. Hungary . 1821 
tuberOsus . . . Purple . 6, H. Her. P. Britain . '. 
▼ariegdlus . . Purple . 7, H. Her. P. Italy . . 1821 
virlus .... YeL red . 4, H. Her. P. luly . .1759 
▼dnetus . . . Purple . 4, H. Her. P. Germany . 
vendsus . . . Blue . . 6,. H. Her. P. Sil*eria . . 1820 
yemfis . . . Purple . 3, H. Her. P. Europe . . 1629 
camfus . . Flesh . . 3, H. Her. P. 
riciuides . . . Yellow . 6, H. Her. P. Hungary . 1819 
OrSktiCm. Adopted from the Greek by Linnaeus. 
Linn. 6, Or. l,Nat. Or. Araeeae. A curious aquatic, 
of easy culture. 
aqudticum . . . Apetal . 6, H. Aq. P. N. Amer. 1775 
Orpine, see Telephium. 
Orpine, see Sedum TelSphUtm. 
Ortegia, Linn. In honour of Casimir Gomez de 
Ortega, once professor of botany at Madrid. Linn. 
3, Or. 1, Nat. Or. Illecebracece. These plants should 
be grown on rock-work, or in pots well drained, in 
a mixture of loam, peax, and sand; they may be 
increaised by cuttings or seeds, 
dichdtdmd . . . Apetal . 8, H. Her. P. Italy . . 1820 
hispanica . . . Apetal . 6, H. Her. P. Spain . . 1768 
Orthoceras, R. Brown. From orthos, straight, and 
keras, a horn ; in allusion to the appearance of the 
outer sepals. Linn. 20, Or. 1, Nat. Or. Orchidacea. 
A curious little plant, requiring the same treatment 
as the genus Disa. 
striatum ... 0. Ter. N. HoiL . . 1826 
Orthopogon, R. Brown. From orthos, straight, and 
pogon, a beard. Linn. 3, Or. 2, Nat. Or. Graminea. 
These plants -require the same treatment as other 
stove biennials. Synonymes : \. Oplismenus africa- 
nus. 2. Orthopogon loliaceus. 
hirteUus. . . . Apetal . . 6, Grass. W. InO. . . 1795 
afriedniis 1, bromoidSs 2, Burminnt, compOsltus, un- 
do la tifdliOs. 
Ortho prIchCm, Hedwig. From orthos, straight, and 
thrix, a hair; teeth of the peristome. Linn. 24, 
Or. 5, Nat. Or. Musci. An extensive genus of 
very minute plants, found on rocks, trunks of trees, 
&c. Synonymes: 1. 0. nudum, O.anomalum. 2. 0. 
aristatum — qff^ng, miijus, pumllum, anomultim, crJs- 
pdm, cupuliitam 1, diaphunrim2, DrummOndt, Hutch- 
Insite, LudwigU, LySllU, pulchSllum, rivulare, rupi- 
calu, speciosum, striatum. 
OrthrosanthCs, SwecL From o?-/Aros, morning, and 
anthos, a flower ; time of flowering. Linn. 16, Or. 
1, Nat. Or. Iridacece. This is a very pretty plant, 
growing well in an equal mixture of loam and peat, 
and may be increased by oflfsets from the roots, or 
by seeds. 
multifldrus . . Blue . . 6, G. Her. P. N. HoD. . 1820 
Or7za, Linn. Derived from the Arabic name, eruz. 
Linn. 6, Or. 2, Nat. Or. Gramineee. The species of 
Oryza, or Rice, should be sown in a pan or cistern 
of water, and kept in the stove. 
Istifdlia . . . .Apetal. . 8, Grass. S. Amer. . .1820 
nepalensls . . . Apetal . . 8, Gtass. Nepal . .1818 
saUva Apetal . . 7, Grass. E. fnd. . . 1596 
OryzopsTs, Richard. From oryza, rice, and opsis, 
appearance. Linn. 3, Or. 1,' Nat. Or. Graminea. 
This species grows in any common soil, and is in- 
creased by divisions. 
asperifolia . . . Apetal . . 7, Grass. N. Amer. . 1822 
OsAGB'APPLE, see Maclnrd. 
OsBECKiA, Linn. In honour of Peter Osbeck, a Swe- 
dish clergyman and naturalist. Linn. 8, Or. 1, 
Nat. Or. Melastomacea. These shrubs are well 
worth cultivating on account of their beautiful 
flowers; for culture and propagation, sec Mela- 
stoma. Synonymes: 1. Melastoma osbeckioides. 2. 
Pleroma glomerata. 3. Rhexia glomerata. 4. Mela- 
stoma nepalensis. 
canescens ... S. De. S. . 1838 
ebinensts, 1 . . Purple . 7i S. Ev. S. China . .1818 
glomerate, 2 . . Pink . . 7, S. De. S. Trinidad . 1818 
albiflora,3 . . White. . 1, S. Ev. S. Brazil . . 1821 
nepalensls, 4 . . Purple . 6, S. Ev. S. Nepal . . 1821 
albiflbra . . ..White. . 8, S. De. S. Nepal . . 1829 
stellate .... Pink . . 7, S. Ev. S. Nepal . . 1820 
zeyldnica . . . Yellow . 8, S. Ev. S. Ceyluu . . 1799 
OscillatorTa, Vouch. Plants having an oscillatory 
motion. Linn. 24, Or. 7, Nat. Or. Alga. Minute 
plants, found on stones in rivers, pools, &c. Syno- 
nyme: 1. rupestris — alatd, autumnuU, vagindtd, 
contexts, corinm, cydned,decOrticd,limbdtd \,lim6sd, 
littordlls, nlgrd, ochrdcid, spadicid, spiralis, splBn- 
didd, subffiscd, tenfiis, tenuisslmu, turj'dsd. 
Osier, see Sdllx vimindlis. 
OsMiTEs, Cassini. From osme, perfume; strong smell 
of camphor. Linn. 19, Or. 3, Nat. Or. Composita. 
Ornamental plants, thriving in any rich light soil, 
and increased by cuttings in sand, under a glass, 
bellidiastrum . . White . . 6, G. Er. S. C. G. H. . 1816 
campbonna . . White . . 5, G. Ev. S. C. 0. H. . 1794 
dentate .... White . . 5, G. t-v. 8. C. G. H. . 1820 
OsiiuKDA, Linn. From Osmunder, one of the names 
of Thor, a Celtic deity. Linn. 24, Or. 1, Nat. Or. 
Osmundacea. Ornamental ferns, of easy culture. 
Synonyme: 1. regalis. 
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