480 



RO S 



THE UNIVERSAL HERBAL; 



RO S 



6. Rondeletia Thyrsoidea. Leaves oblong, acute, mem- 

 branaceous, pubescent underneath ; thyrses axillary. Trunk 

 six feet high, branched, upright, even, with an ash-coloured 

 bark; flowers inodorous, small, reddish; they appear in 

 February. Native of the driest hills of Jamaica, in the 

 western part of the island. 



7. Rondeletia Racemosa. Leaves lanceolate-ovate, acu- 

 minate, smooth on both sides ; stipules elliptic, with a short 

 point ; racemes axillary, trichotomous, patulous. Branches 

 round, spreading, covered with an irregular hoary bark. 

 Native of Jamaica, on the mountains. 



8. Rondeletia Laurifolia. Leaves lanceolate-oblong, acute, 

 smooth on both sides ; stipules deltoid ; racemes compound, 

 axillary, erect; tube of the flowers very short. Branches 

 round, smooth ; flowers small, brownish-yellow, five-cleft. 

 Native of Jamaica, in bushy places. 



9. Rondeletia Torhentosa. Leaves ovate, acuminate, to- 

 mentose ; peduncles three-parted, axillary, short. This shrub 

 is nearly three feet high, upright, branched above, even ; 

 branches and branchlets opposite, round, upright, somewhat 

 villose at the top. Native of Jamaica, on rocky hills, as in 

 Sixteen-mile Walk near Spanish Town. 



10. Rondeletia Umbellulata. Leaves lanceolate-ovate, 

 acute, subhirsute ; peduncles axillary, trichotomous at top ; 

 flowers subumbelled. Native of Jamaica, on rocks near 

 streams ; flowering in April. 



11. Rondeletia Incana. Leaves ovate-lanceolate under- 

 neath, hoary, rugged ; peduncles axillary, simple, three- 

 flowered. Shrub from two to three feet in height, upright, 

 branched, rugged. This species is very distinct in its habit, 

 flowers, and hoariness. Native of Jamaica. 



12. Rondeletia Hirsuta. Leaves oblong, acute, hirsute; 

 peduncles axillary, trichotomous, loose ; flowers hirsute. This 

 shrub is six feet high, branched, and even. Native of Ja- 

 maica, on bushy hills, flowering in January. 



13. Rondeletia Hirta. Leaves oblong, acuminate, rough- 

 haired, rigid, nerved underneath ; peduncles axillary, tricho- 

 tomous, erect. Corolla reddish-yellow. Native of Jamaica. 

 ' 14. Rondeletia Buxifolia. Leaves obovate, smooth ; flowers 

 four-stamined, axillary, solitary ; branches smooth, jointed. 

 Native of Montserrat. 



Roridula; a genus of the class Pentandria, order Mono- 

 gynia. GENERIC CHARACTER. Calix: perianth five-leaved ; 

 leaflets lanceolate, equal, permanent. Corolla : petals five, 

 ovate-oblong, equal, larger than the calix. Stamina : fila- 

 menta five, awl-shaped, shorter by half than the corolla ; 

 antheree inserted above their base, awl-shaped, semibifid, 

 gaping at the top ; nectary from the scrotiform base of the 

 anther protruded downwards. Pistil: germen oblong; style 

 filiform, the length of the stamina;* stigma truncate, subtri- 

 lobate. Pericarp: capsule oblong, three-cornered, three- 

 celled, three-valved ; partitions contrary to the valves. Seeds: 

 solitary, oval, angular on one side. ESSENTIAL CHARAC- 

 TER. Calix : five-leaved. Corolla: five-petalled. Anthera: 

 scrotiform at the base. Capsule: three-valved, three-celled. 

 The only known species is, 



1. Roridula Dentata. Stem shrubby, branched, round, 

 smooth, purplish ; leaves clustered, alternate, sessile, half- 

 embracing, awl-shaped, with filiform teeth, ciliate ; flower- 

 stalks woolly, each bearing about four large handsome flow- 

 ers. Native of bogs at the Cape. 



Rosa ; a genus of the class Icosandria, order Polygynia. 

 GENERIC CHARACTER. Calix: perianth one-leafed ; tube 

 ventricose, contracted at the neck ; with the border spread- 

 ing, five-parted, globular; segments long, lanceolate, narrow, 

 (two of which are usually fringed at both edges, with unequal 



leafy appendages ; the third, at one edge only ; the two 

 remaining having both edges naked : in some species all are 

 simple and naked.) Corolla: petals five, obcordate, the 

 length of the calix, inserted into the neck of the calix. Sta- 

 mina : filamenta very numerous, capillary, short, inserted into 

 the neck of the calix ; antherse three-cornered. Pistil : ger- 

 mina numerous, in the bottom of the calix; styles as many, 

 villose, very short, compressed close by the neck of the calix, 

 inserted into the side of the germen ; stigmas blunt. Peri~ 

 carp : none ; berry fleshy, turbinate, coloured, soft, one- 

 celled, crowned with the rude segments, contracted at the 

 neck, formed from the tube of the calix. Seeds: numerous, 

 oblong, hispid, fastened to the inner side of the calix. 

 Observe. The calix of the pericarp resembles a berry. ES- 

 SENTIAL CHARACTER. Calix: pitcher-shaped, five-cleft, 

 fleshy, contracted at the neck. Petals: five. Seedf : very 



many, hispid, fastened to the inner side of the calix. Th* 



species are, 



* With subglobular Fruits. 



1. Rosa Berberifolia ; Barberry-leaved Rose. Fruits glo- 

 bular, with the peduncles prickly; stem with prickles, usu- 

 ally in pairs, hooked ; leaves simple, subsessile. Native of 

 northern Persia. This species is remarkable for its simple 

 leaves, which are obovate, glaucous, coarsely serrated, about 

 an inch long, smooth, on short stalks, without stipules, hav- 

 ing in their stead a pair of recurved prickles, spreading from 



the base of each footstalk. Of the various kinds of ROSES 



it is difficult to determine which is a species, and which a 

 variety. The habit is invariably shrubby, and almost univer- 

 sally prickly; the branches round; leaves alternate, pinnate, 

 with an odd leaflet, serrated, frequently prickly or glandular ; 

 flowers terminal, stalked, usually red, variously and delici- 

 ously fragrant; fruits harmless, but seldom pleasant. T.he 

 seeds are slow in germination. Most of them are of foreign 

 growth, and have been at various times introduced into 

 English gardens, but they are generally natives of northern 

 countries, or grow upon the cold mountains in the warmer 

 parts of Europe ; so that they are very hardy in respect to 

 cold, but love an open free air, especially the Yellow Rose, 

 the Austrian Rose, and the Monthly Rose. All the sorts 

 may be propagated either from suckers, layers, or by bud- 

 ding them upon stocks of other sorts of Roses, which latter 

 method is only practised for some peculiar sorts that do not 

 grow very vigorous upon their own stocks, and send forth 

 suckers very sparingly, or where a person is willing to have 

 more sorts than one upon the same plant : but, where this is 

 designed, it must be observed to bud only such sorts upon 

 the same stock as are nearly equal in manner of growth ; for 

 if there be a bud of a vigorous sort, and others of weak 

 growth, budded in the same stock, the strong one will draw 

 all the nourishment from the weaker, and entirely starve 

 them. When propagated by suckers, they should be taken 

 off annually in October, and transplanted out, either into a 

 nursery in rows, (as has been directed for several othe-r sorts 

 of flowering shrubs,) or into t-he places where they are to 

 remain ; for if they are permitted to stand upon the roots of 

 the old plants more than one year, they grow woody, and 

 do not form so good roots as if planted out the first year, so 

 there is more danger of their not succeeding. But the best 

 method to obtain good-rooted plants is, to lay down the 

 young branches in autumn, which will take good root by the 

 autumn following, (especially if they are watered in very dry 

 weather,) when they may be taken from the old plants, and 

 transplanted where they are to remain. The plants which 

 are thus propagated by layers are not so apt to send out 

 suckers from their roots, as those which are raised from 



