ONO ONO 
ONO OPH 
24, Or. 1, Nat, Or. Polypodiacece. These plants 
grow well in loam and peat, or on rock- work ; 
they are increased by dividing at the roots, or by 
seeds. 
obtusilobStS . . Bro\m . 7> H. Her. P. N. Amer. . 1812 
sensibllis . . . Brown . 8, H. Her. P. Virginia . 1799 
Ononis, Linn. From onos, an ass, and onemi, to 
delight; some of these plants are said to be grate- 
ful to asses. Linn. 16, Or. 6, Nat. Or. Leguminosas. 
All the plants belonging to this genus are of easy 
cultivation, and several of them are rather hand- 
some when in flower. Synonymes; 1. hircina. 2. 
spinosa, glabra. S.frtdicosa. 4. barbata. 5. Natrix. 
6. arvensis. 7* reclinata. 
alba .... White . . 7, H, A. Barbary . 1823 
angustlssima . . Pink . . 6, F. Ev. S. Spain . . 1825 
Spula .... Yellow . 9, H. B. Naples . .1834 
arborescens . . Red . . 6, H. Ev. S. Barbary . 1826 
arenaria . . . Yellow . 7> H. Ev. S. S. Franco . 1819 
arragoneusis . . Yellow . 7, H. De. S. Spain . . 1816 
bi flora . . . . Yel. pur. . 7, H. A. Barbary . 1818 
bracbycarpa . . Yellow . 6, H. A. Spain . . 1823 
brevinora . . . Yellow . 8, H. A. S. Eur. . . 1800 
capensls . . . Purple . G. A. C. G, H. . 1800 
eapitata . . . Yellow . 8, H. Ev. Tr. Spain . . 1820 
cuspidata . . . Yellow . 6, F. Her. P. Algiers. . 1818 
DenhardtH . . Yellow . 8, H. B. Naples . . 1832 
diffusa . . . Purple . 7. H. A. Italy . .1820 
emarginata . . S. Ev. S. Maiirit. . . 1825 
falcata . . . Yellow . 7, F. Ev. S. S. Eur. . . 
fffitida . . . .Pink . . 6, H. A. Morocco . 1818 
fruticosa . . . Pink . . 5, H. Ev. S. S. Eur. . . 1680 
mierophylia, 3 Pur. red . 6, H. Ev. S. Arragon . 
geniiniflora . . Purple . 7» H. A. Spain . .1817 
glabra. . . .Yellow . 7, G. Ev. Tr. C. G. H. .1824 
hirta .... Blue . . 7, H. Her. P. S. Eur. . . 1816 
liispanica . . . Yellow . 7> F. Ev. S. Spain . . 1799 
hispida ... . 7, F. Ev. S. Barbary . 1818 
longifdlia . . . Yellow . 7i F. Ev. S. Teneriffe . 1816 
minutissTma, 4 . Yellow . 6, F. B. S. France . 1818 
oligophylla . . White . . 7, H. A. Naples . . 1823 
parviflOra. . . . 7, G. A. C. G. H. . 1818 
peduncularls . . Wht.ro. . F. Ev. S. TeneriflTo . 1829 
pendula . . . Purple . 7> H. A. S. Eur. . . 1818 
picta .... Pur. yeh . F. Her. P. Barbary . 1820 
procurrens . . Purple . 7. H. Her. P. Europe . . 1820 
ramoslssima . . Yellow . 7, F. Ev. S. Sicily . . 1819 
rotundifona . . Pink . . 5, H. Ev. S. Pyrenees . 1570 
aristae . . Pink . . 6, H. Ev. S. 
sic&la . . . .Yellow . 7. H. A. Sicily . .1817 
tribracteata . .Pink . . 6, H. Ev. S. S. Eur. . . 1800 
tridentata . . Purple . 6, H. Ev. S. Sp^ . . 1752 
viUosa .... . 7, G. Her. P. C. G. H. • . 1820 
alopecuroldSs, altisstmS 1, antiquOrum 2, centsla, C. 
subaristuta, cSrnvil, CherlSrn, Columnce, crTspd, 
miitsslma, monophylld, natrix, ornithopodioides, 
pingiiis 5, pubSseSns, recllndtd, rSpSns spinOsd 6, 
S. dibd, stridld 7, vaginalis, variegdtd, viscOsd. 
Onopordon, Linn. From onos, an ass, and perdo, to 
explode ; referring to the supposed effects on the 
ass. Linn. 19, Or. 1, Nat Or. Composite. Rather 
interesting plants, of common cultivation, 
acanthium . . . Purple . 7» H. B. Britain . . 
acaulOn .... White . . 7. H. B. Pyrenees . 1739 
arablcum . . . Purple . 7. H. B. S. Eur. . . 1686 
cynaroides . . . White . . 6, H. B. Caucasus . 1823 
elatum .... Purple . 7. H. B. Greece . . 1816 
gracum . . . Purple . 7. H. A. Levant . . 1799 
heteracanthum . H. B. . 1836 
illyrlcum . . . Purple . 7» H. B. S. Eur. . . 1640 
macracanthum . Purple . 7> H. A. Barbary . 1798 
pyrenaictim . . White. . 8, H. B. Pyrenees . 1820 
tauricum . . . Purple . 7, H. B. Tauria . . 1800 
uniflorum . . .White. . 7. H. B. Spain . .1826 
Virens .... Purple . 7, H. B. Montpel. . 1818 
viscosum . . . Purple . 7. H, B. S. Eur. . . 1818 
Onosma, Linn. From onos, an ass, and osme, smell; 
said to be grateful to the ass. Linn. 5, Or. 1, Nat. 
Or, Boraginaceae. These are extremely pretty plants 
when in blossom, and are well adapted for grow- 
ing on rock-work or wall-tops, in which places 
they should be sown, where they will afterwards 
maintain themselves if allowed to scatter their 
seeds. The stove and greenhouse species must be 
kept in pots. Synonyms : i. 0. arenarium. 
divaricatum . . Yellow . 5, H. Her. P. Caucasus . 1818 
echioldes . . . White . 5, H. Her. P. S. Eur. . . 1683 
arenSrlum, 1 . Yellow . 6, H. Her. P. Hungary . 1804 
giganteum . . . Yellow . 4, H. Her. P. Tauria . . 1818 
Gmellnl . . . Striped . 6, H. Her. P. Altai . . 1829 
orientals . . . Yellow . 5, H. Her. P. Levant . . 1752 
polyphyllum . . Yellow . 7, H. Her. P. Tauria . . 1829 
L 223 ] 
rlgidiim ... Pa. yel. . 7, H. Her. P. Tauria . . 1826 
rupestre . . . Yellow , 6, F. Her. P. Iberia . .1819 
sericeiim . . . Yellow . 6, H. Her. P. Iberia . . 1752 
setosum . . . Yellow . H, Her. P. Russia . . 1838 
simplicissimum . Yellow . 4, H. Her. P. Siberia . . 1768 
stelhilatum . . YeUow . 4, H. Her. P. Hungary . 1819 
tauricum . . . Yellow . 5, H. Her. P. Caucasus . 1801 
tinctorium . . . Yellow . 5, H. Her. P. Caucasus . 1826 
tricerospermum . Yellow . 5, H. Her. P. Spain . . 1824 
trinervlum . . . Yellow . S. Her. P. S. Amer. . 1824 
Onosmodium, Michaux. From onosma, and eidos, like ; 
from the similarity of the plants to those of Onosma. 
Linn. 5, Or. 1, Nat. Or. Boraginacex. Ornamental 
plants ; for culture and propagation, see Onosma. 
Synonymes: 1. Purshia hispida, 2. P. mollis, 
hlspldum, 1 . . Yellow . 6, H. Her. P. N. Amer. . 1759 
molle, 2 . . . White . . 6. H. Her. P. N. Amer. . 1812 
Onygkna, Persoon. From onyx, a hoof, and genas, an 
offspring. Lhtn. 24, Or. 9,' Nat. Or, Fungi. This 
minute autumnal species is found on decaying hoofs 
and horns of animals — equini. 
Opaque, dark, destitute of transparency. 
Opegrapha, Persoon. From ope, a chink, and grapho, 
to write ; cracks upon the surface of the thal- 
lus. Linn. 24, Or. 9, Nat. Or. Fungi. These 
plants are found on the bark of trees, on stones, 
&c., at all seasons of the year — calcured, cerebrind, 
epipdstd, microsedpted, herpeticd, disparutd, macu- 
Idris, nimbOsd, nOthd, didphord, PersoOned, apored, 
saxigSnd, stenocdrpd, denigrdtd, sulcdtd, tesserdtd, 
venOsd, vulgdtd. 
Opera-girls, see Mantisdd saltatdrid. 
Opercularia, Richard. From operculum, a lid; in 
allusion to the operculate calyx. Linn. 5, Or. 1, 
Nat. Or. Cinchonacea. Pretty plants, easily cul- 
tivated in a mixture of loam, peat, and sand; and 
young plants are obtained from cuttings under a 
glass. Synonymes; \. aspera, diphylla. 
aspeia .... White . 6, G. Her. P. N. HoU. . 1790 
hispida, 1 . . . White . 7, G. Her. P. N. HoU. . 1790 
ocymifOira . . . White . 7, S. Her. P. E. Ind. . . 1824 
sessiUflora . . . White . 6, G. Her. P. C. G. H. . 1824 
Opercularia, see Pdmdx. 
Operculate, covered with a lid. 
Operculum, a lid. 
Operculated, covered with a lid. 
Ophioglossum. From ophis, a serpent, and glossa, a 
tongue ; the resemblance of the leaves. Linn. 24, 
Or. 1, Nat. Or. Ophioglossacex. These ferns will 
grow well in a mixture of loam and peat, and may 
be increased by divisions of the roots, or seeds. 
The hardy kinds should be planted in a moist 
situation. 
bulbosum . . . Brown . 7, F. Tu. P. N. Amer. . 
costa turn . . . Brown . 6, G. Her. P. N Holl. . 1820 
gramin^um . . Brown . 6, G. Her. P. N. Holl. . 1820 
lusitanicum . . Brown . 6, H. Her. P. Portugal . 1816 
petiolatum . . . Brown . 3, S. Her. P. Jamaica . 1820 
reticulatum . . Brown . 6, S. Her. P. W. Ind. . 1793 
vulgatiim . . . Brown . 5, H. Her. P Britain . . 
Ophiopogon, Ker. From ophis, a snake, and pogon, a 
beard. Linn. 6, Or. 1, Nat. Or. Liliaceee. An or- 
namental genus, thriving well in sandy loam and 
peat, and increased by dividing at the roots. Sy- 
nonyms : 1. Convallariajaponica. 
jaburSn . . .White . 7, F. Her. P. Japan . . 1830 
japonicus, 1 . .Li. yel. . 6, F. Her. P. Japan . . 1784 
spicatus . . . Violet . 10, F. Her. P. Nepal . . 1821 
Ophiorhiza, Forskahl. From ophis, a snake, and 
rhiza, a root; Snake-root. Linn. 5, Or. 1, Nat. Or. 
Cinchonacea. This shrub grows well in light loamy 
soil, and cuttings of the young wood root in sand, 
under a glass, in a moist heat; it may also be in- 
creased by seeds. 
MungOs . . . AVhite . . 8, S. Ev. S. E. Ind. . . 1820 
OphioxylSv, Burmann. From ophis, a serpent, and 
xylon, wood ; alluding to the tortuous root and 
stems. Linn. 23, Or. 2, Nat. Or. Apocynacex. This 
plant is rather pretty ; for culture and propagation, 
see Stt phanthus. 
serpentlnum . . White . . 5, S. Ev. S. E. Ind. . . 1690 
Ophiurus, Gartner. From ophis, a snake, and oura, 
a tail. Linn. 3, Or. 2, Nat. Or. Graminete. Curious 
annual grasses, grow'ing in any common garden 
soil. Synonymes: 1. Rottboellia Jiliformis. 2. R, 
incurvata. 3. R. cylindrica, Monerma subulata, Lep- 
turns cylindricus. 
