ONO 



t 582] 



OPH 



eaten by the animal. Nat. ord., Compo- 

 sites [Asteracese]. Linn., 19-Syt>genesia 

 I-jE quails. Allied to the Thistle.) 



Hardy biennials, the seeds of which merely 

 require sowing in the commonest soil, either in 

 the autumn or early spring. 

 0. acau'lon (stemless). . White. July. Pyrenees. 

 1739. 



Ara'bicum (Arabian). 8. Purple. July. South 



Europe. 1686. 



cynaroi'des (artichoke-like). 10. White. June. 



Caucasus. 1823. 



ela'tum (tall). 7. Purple. July. Greece. 1816. 



Illy'ricum (Illyrian). 6. Purple. July. South 



Europe. 1640. 



macraca'nt/ium(long-spined'). 6. Purple. July. 



Barbary. 1/Q8. Annual. 



Pyrena'icum (Pyrenean). $. White. August. 



Pyrenees. 1820. 



uniflo'rum (one-flowered). . White. July. 



Spain. 1826. 



visco'sum (clammy). 7. Purple. July. South 



Europe. 1818. 



ONO'SMA. (From onos, an ass, and osme, 

 smell; said to be grateful to the animal. 

 Nat. ord., Borageworts [Boraginacese]. 

 Linn., 5-Pentandria 1-Monogynla. Allied 

 to Echium.) 



Herbaceous perennials, yellow-flowered, except 

 where otherwise mentioned. Small, pretty plants 

 for mounds, rock-work, and old walls, where, if 

 once established, they will maintain themselves 

 by seeds ; seeds aud divisions ; sandy loam and 

 sandy peat, and thin layers of decomposed vege- 

 table matter; a few tender kinds require a cold 

 frame, and trine'rvium a warm greenhouse in the 

 winter. 



HALF-HARDY. 

 0. ri'gidum (stiff). 1. July. Tauria. 1826. 



rupe'stre (rock). . May. Iberia. 1819. 



trine'rvium (three-nerved). 1. S. Amer. 1824. 



HARDY. 



0. divarica'tum (spreading). 1. May. Caucasus 

 1818. 



echioi'des (echium-like). 1. White. May. 



South Europe. 1683. 



arena'rium (sand). 1. June. Hungary. 



1 804. 



gigante'um (giant). 3. April. Tauria. 1818. 



Gmeh'ni (Gmelin's). 1. Striped. June. Altai. 



1829. 



montu'num (mountain). March. Levant. 1827. 

 - orienta'le (eastern). . May. Levant. 1752. 

 polyphy'llum (many- leaved). 1. July. Tauria, 



1829. 

 . seri'ceum (silky-teoved). 4. June. Iberia. 1752. 



simplicl'ssimum (simplest). 1. April. Siberia. 



1768. 



stellula'tum (small-starred), i- April, Hungary. 



1819. 



ONOSMO'DITJM. (From onosma, the last 

 genus, and eidos, like. Nat. ord., Borage - 

 worts [Boraginaceas]. Linn., 5-Pentan- 

 dria 1-Monogynia. Allied to Echium.) 



Hardy herbaceous North American perennials, 

 flowering in June; thriving in sandy loam, and 

 propagated by seeds and division. 

 0. hi'spidum (bristly). 1. Yellow. 1759. 



mo'lle (soft). *. White. 1812. 



ONY'CHIUM. (From onyx, a claw ; 

 of the lobes of the fronds. Nat.ord.,.Fmjs 

 [Polypodiacese]. Linn., 24:-Cryptogamia 

 1-Filices.) 



Stove Ferns, with yellowish-brown spores. See 

 FERNS. 

 0. auru'tum (golden). July. N. S. Wales. 



Cape'nse (Cape). July. Cape of Good Hope. 



lu'cidum (shining). July. Nepaul. 1844. 

 OPERA GIRLS. Manti'sia. 

 OPERCULA'RIA. (From operculum, a lid ; 



shape of calyx. Nat. ord., Cinchonads 

 [Cinchonaceae]. Linn., 5-Pentandria I- 

 Monogynia. Allied to Pomax.) 



Greenhouse herbaceous, white-flowered peren- 

 nials. Seeds in spring, in a mild hotbed ; division 

 of some of the plants as growth commences ; 

 cuttings of the young shoots, best when several 

 inches long ; sandy loam and a little fibry peat, 

 and dried pieces of leaf-mould, and a few pieces 

 of charcoal; a dry, cold pit or greenhouse in 

 winter. 



0. a'spera (rough-seeded). 1. June. N. Holland. 

 1790. 



hi'spida (bristly). 1. July. N. Holland. 1/90. 



ocymifo'lia (basil-leaved). J.July. E. Ind. 1824. 



sessi7d/2oVa(8talkless-flowered). ^. June, Cape 



of Good Hope. 1824. 



OPHE'LIA. (From opheleia, serviceable; 

 medicinal. Nat. ord., Gentianworts [Gen- 

 tianacese]. Linn., 5-Pentandria2-Diyynia. 

 Allied to the Gentian.) 



A pretty little annual, with starry pink flowers. 

 Seeds sown under a glass frame in the beginning 

 of April, and planted out in the open border at 

 the beginning of May. 



0. purpura'scens (purplish). . May. E. lud. 

 1836. 



OPHIOPO'GON. (From ophis, a serpent, 

 and pogon, a beard. Nat. ord., Lilyworls 

 [Liliacese]. Linn., 6-Hexandria 1-Mono- 

 gynia. Allied to Convallaria.) 



Herbaceous, white-flowered perennials, except 

 where otherwise mentioned. Division of the plant 

 at the roots, in spring, as vegetation is commenc- 

 ing ; also by seed ; sandy loam and a little peat ; 

 requires the protection of a cold pit, or a very dry, 

 sheltered place in winter. 



O. interme'd&us (intermediate), August. Nepaul. 

 1824. 



Jabu'ran ( Jaburan) . 1. July. Japan. 1830. 



Japo'nicus (Japan) . 1J. Lilac, yellow. June. 



Japan. 17&4. 



prn'lifer (proliferous). l^.July. Penang. 1844. 



spic&'tus (spiked). 1. Violet. October. Nepaul. 



1821. 



OPHIO'XYLON. (From ophis, a serpent, 

 and xylon, wood ; referring to its twisted 

 roots. Nat. ord., Dogbanes [Apocynacese]. 

 Linn., 23-Polygamia 2-Diceda. Allied to 

 Carissa.) 



Stove evergreen. Division of the creeping stems ; 

 rich, sandy loam. Winter temp., 50 to 55; 

 summer, 60 to 80. 



0. &erpenti'num (serpentine). 3, White. May, 

 E. Ind. I6go. 



