334 Order 47.— ROSACEA. 



with a leafy appendage ; petals 5 (greatly multiplied by culture) ; 

 achenia oo, bony, hispid, included in and attached to the inside of the 

 fleshy tube of the calyx. — Shrubby and prickly. Lvs. unequally pin- 

 nate. Stip. mostly adnate to the petiole. 



O'ift. Oar innumerable varieties of garden Roses have mostly originated with the few 6peclcs 

 mentioned below. To define these varieties in order to their recognition would generally be im- 

 possible, for their forms are as evanescent. :<s their names are arbitrary. All that the author hero 

 proposes is to aid the botanist in tracing back each form to the species whence it sprung. This 

 will be easily done in all cases except witu the hybrids. 



6 Styles cohering in an exserted column. Climbers (a). 



§ Styles not cohering. — Stipules nearly free and caducous (b). 



— Stipules adnate to the petiole. — Prickles recurved (c). 

 — Prickles straight (d). 



a Leaflets 3 to 5, mostly 3. Native and cultivated No. 1 



a Leaflets 5 to 9. — Stipules and sepals mostly entire Nos. 11, 12 



— Stipules pectinate. Sepals entire No. 8 



—Stipules entire. Sepals pennatifid No. 18 



b Penduncle very short, enveloped in bracts. Leaflets 5 to 9 No. 4 



b Penduncle elongated, bractiess. Leaflets 3 to 5. — Thorny, mostly climbing. .Nos. 2. 19 



— Thorn less, erect No. 24 



C Leaflets not at all glandular. Shrubs erect,— wild No. 8 



—cultivated Nos. 13. 14 



C Leaflets glandular and fragrant beneath. — Flowers single Nos. 9, 111 



— Flowers double Nos. 15 — IT 



d Wild, native Roses, 1— 3f erect Nos. 5, 6, 7 



d Cultivated exotics, climbing (No. 20) or erect Nos. 21—28 



1 R. setfgera Mx. Michigan or Prairie Rose. Branches elongated, ascend, 

 glabrous; spines few, strong, stipular; lfts. large, 3 to 5, ovate; stip. narrow, 

 adherent, acuminate ; fls. corymbous ; cal. glandular, segm. subentire ; sty. united; 

 fr. globous. — This splendid species is a native of Mich, and other States W. and 

 S. About 20 varieties are enumerated in cultivation, among which is the Balti- 

 more Belle. They are hardy, of rapid growth, and capable of being trained 12 to 

 20f. Fls. in very large clusters, changeable in hue, nearly scentless, and of short 

 duration. 



2 R. laevigata Mx. Cherokee Rose. Glabrous and polished ; branches long, 

 trailing, armed with very strong, curved prickles ; lfts. 3, rarely 5, coriaceous, 

 evergreen, shining, elliptical, sharply serrate ; stip. free, setaceous, deciduous ; fls. 

 solitary ; cal. bristly, sop. entire. — In hedges, etc., Fla. (Tallahassee), N. to Tenn., 

 etc. Sts. very long, numerous, and with their broad, hooked pricks, make the 

 most impervious of all hedges. Fls. often 3' diam., white. Apr. — Common also 

 in gardens. § China. 



3 R. multifldra Seringe. Many-flowered, or Japan Rose. Branches, ped. 

 and cal. tomentous ; shoots very long; prickles slender, scattered; lfts. 5 to 1, 

 ovate-lanceolate, soft and slightly rugous ; stip. pectinate, fimbriate ; fls. corymb- 

 ous, often numerous ; flower-bud ovoid-globous ; sep. short ; sty. exserted, 

 scarcely cohering in an elongated pilous column ; pet. white, varying through 

 roseate to purple. — Grows in hedges with No. 2, about Tallahassee (Plank road to 

 Bellair). Shrub with luxuriant shoots, easily trained to the height of 15 to 20f. 

 — Among its varieties are the Seven Sisters, Boursault's, etc. § Japan. 



4 R. bracteata Linn. Macartney Rose. Branches erect, tomentous ; prickles 

 recurved, often double ; lfts. 5 to 9, obovate, subserrate, coriaceous, smooth, and 

 shining; stip. fimbriate-setaceous ; fis. solitary, terminal, with large bracts subtend- 

 ing the calyx ; ped. and cal. tomentous ; fr. globous, large, orange. — Naturalized 

 in hedges near N. Orleans (Riddell in T. and G.) Fls. large, white. § China. 

 Varieties with cream-colored to scarlet fls. 



5 R. lucida Ehrh. Shining, or "Wild Rose. St. low ; prickles scattered, seta- 

 ceous, the stipular largest, straight ; lfts. 5 to 9, elliptical, simply serrate, smooth 

 and shining above ; petioles glabrous or subhispid ; fls. generally in pairs (1 to 

 3) ; fr. depressed, globous, and with the peduncles, glandular-hispid. — Shrub 1 to 

 3fhigh, in dry woods or thickets throughout the U. S., slender, with greenish 

 branches. Lfts. acute or obtuse, odd one petiolate, the others sessile. Sepals 

 often appcndiculate, as long as the large, obcordate, pale-red petals. Fr. small, 

 red. Jn. Jl. (R. Carolina Mx., nee Bw.) 



