OPE 



404 



OPO 



Operculated, covered with a lid. 



Operculum, a lid. 



Ofhelia, Don. From opheleia, service ; plants 

 useful in medicine. Linn. 5, Or. 2, Nat. Or. 

 Gentianacece. A genus of pretty hardy an- 

 nuals, of easy culture. Sow the seeds on a 

 hot-bed, after the manner of other half-hardy 

 annuals, and when the frosts are over, plant 

 them in the open borders. Synonyms: 1, 

 Swirtia corymbbsa. 



corymbdsa 1 . Blue . 5, G. A. 1 B. rnd. . .1836 



purpurascens Pink . 6, H. A. 1 N. India . 1S40 



umbell&ta . Pa. bl. . 6, G. A. 1 Himalaya . 1S62 



OphIOGLOSSACEjE, or adder's-tongues. A 

 small order of ferus, principally found in tro- 

 pical countries, but a few are met with iu 

 temperate climates, of which the common 

 moon-wort (Botrtfchium Lundria) of our hilly 

 pastures is an example. 



Ophiogl6ssum. From opJiis, a serpent, and 

 glossa, a tongue ; the resemblance of the leaves. 

 Linn. 24, Or. 1, Hat. Or. Ophioglossdcece. 

 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, 

 bulbdsum . Brown . 7, F. Tu. P. \ N. Amer. 

 cost&t.im . Brown . 6, G. Her. P. | N. Hoi. . 1820 

 gramineum . Brown . 6, G. Her. P. J N. HoL . 1820 

 lusitfoicum . Brown . 6, H. Her. P. i Portugal 1816 

 pendulum . Brown . S, S. Her. P. £ I. Luzon 

 petiolatum . Brown . 3, S. Her. P. | Jamaica. 1820 

 reticulatum . Brown . 6. S. Her. P. | W. Ind. . 1793 

 vulgatum. . Brown . 5, H. Her. P. % Brit., meadow. 



Ophiopogon, Ker. From ophis, a snake, and 

 pogon, a beard. Linn. 6, Or. 1, Nat. Or. 

 Lilidcece. An ornamental genus, thriving well 

 in sandy loam and peat, and increased by 

 dividing at the roots. -Synonyme: 1, Oomial- 

 laria jap6nica ; 2,. C. spicdta, Liribpe spicata, 

 Fltiggea spicata. 



intermedins. White . 8, P. Her. P. 1 Nepal . 1824 

 Jaburan . . White . 7, P. Her. P. 1 Japan . 1830 



variegatus . White 7, P. Her. P. 1 Chile 

 japonicus 1 . Li yel. . 6, P. Her. P. 1J Japan . 1781 

 prolifer . . White , 6, S. Or. P. 6 N. S. W. 1820 

 spicatus 2. . Violet . 10, P. Her. P. 1 Nepal . 1821 



Ophiorhiza, Forskahl. From ophis, a snake, 

 and rhiza, a root ; Snake-root. Linn. 5, Or. 

 1, Nat. Or. Cinchonacece. 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 increased by seeds. 

 Mnngos White . S, S. Ev. S. 3 E. Indies . . 1820 



Ophioscorodon. See Allium Ophioscorodon. 



Ophiostaohts. See Ohamcelirium. 



Ophioxtlon, Burmann. From ophis, a ser- 

 pent, and xylon, wood ; alluding to the tortu- 

 ous root and stems. Linn. 23, Or. 2, Nat. 

 Or. Apoajnacece. This genus is rather pretty ; 

 for culture and propagation, see Strophdnthus. 

 album . . White . 5, S. Ev. S. 3 E. Ind. . 1848 

 raajus . . White . 4, 8 Ev. S. 4 E. Ind. . 1850 

 serpen tmum White . 5, S. Ev. 8. 2} E. Ind. . 1690 



Ophiurds, Gcertner. From ophis, a snake, and 

 oura, a tail. Linn. 3, Or. 2, Nat. Or. Grami- 

 nacecs. Curious annual grasses, growing in 

 any common garden soil. Synonymes: 1, Rott- 

 ootllia- filifbrmis ; 2, JR. incurvala ; 3, R. cy- 



lindrical, Monerma subuldta, Lepturus cylin- 

 drical. See Pholikrus. 



filifdrmis 1 . . Apetal . 7, Grass £ Portugal . 1800 

 incurvatus 2 . Apetal . 7, Grass § Brit, sea shore, 

 subulatus 3 . . Apotal . 7. Grass j 8. Eur. . .1806 



Ophrts, Linn. Ophrys is the Greek appella- 

 tion for eyebrows, and is said to be applied to 

 this genus because of the fringe of the inner 

 sepals. Linn. 20, Or. 1, Nat. Or. Orchiddcece. 

 The species of this genus are highly curious, 

 and worth a place in every collection. They 

 thrive best in a frame in a mixture of loam, 

 peat, and chalk, broken small ; the lights 

 should be put on in very wet or frosty weather. 

 It is advisable to have some turfy grass grow- 

 ing where they are planted, as they can only 

 be increased from seeds, which are parasitic 

 when young, and will lay hold of the grass 

 when they first vegetate. They will ripen 

 seed without difficulty if care be taken to rub 

 the pollen on the stigma. The seeds should 

 be sown as soon as ripe, and when come up 

 sufficiently, to be transplanted to where they 

 are to remain. Synonymes: 1, O. bicbrnis, O. 

 ceslrifera; 2, O. arachnitis, exaltdta, csstrifera, 

 crabronifera, apiculata ; 3, O. spSculum ; 4, O. 

 bombyliflbra, O. dlstama, O. hifilca, O. plcta, 

 O. pulla ; 5, O. lUtea. See Aceras, Chambrchis, 

 Corallorrhlza, Herminium, and Ne6Uia. 



Opiate, having the power of opium. 



Opium is the inspissated juice of the Papdver 

 somni/erum. 



Oplismenus. See Pdnicum. 



Oplotheca, Nuttall. From oplon, armour, and 

 theca, a sheath ; in allusion to the appearance 

 of the capsules. Linn. 5, Or. 1, Nat. Or. 

 Amarantdcece. Ornamental plants, growing in 

 loam and peat, and increased by cuttings. O. 

 floriddna is readily multiplied by divisions of 

 the roots. Synonyme: 1, Gomphrena inter- 

 r&pta. 



floridana . White . 9, H. Her. P 3 N. Amer. . 1824 

 interrfipta 1 Green . 7, 8. B. 2 W. Ind. . 1733 



lactea . . White . 7, S. Ev. S. 2 8. Amer. . 1S18 



Op<5panax, Koch. From opos, juice, pan, all, 

 and ahos, a remedy ; the juice of the plant is 



