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. 



Oba. Our innumerable varieties of garden Eosea have mostly originated -with the few speeies 

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

 possible, fbr their forms are as evanescent as their names are arbitrary. All that the author here 

 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 with the hybrids. 



§ Styles cohering in an exserted column. Climbers Ca). 



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



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

 — Prickles straight (d). 



a Leaflets 3 to 5, mostly 8. Native and cultivated No. 1 



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



— Stipules pectinate. Sep.als entire No. 8 



— Stipules entire. Sep-ils pennatifid No. 18 



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



b PenduDcle elongated, braotless. Leaflets 3 to 5.— Thorny, mostly climbing. .Nos. 2, 19 



* — Thornless, erect No. 24 



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



— cultivated Nos. 18, 14 



c Leaflets glandular and fragrant beneath. — Flowers single Nos. 9, 10 



—Flowers double Nos. 15 — 17 



d Wild, native Roses, l—8f erect Nos. 5,6,7 



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



1 R. setigera Mx. MicmaAN or Prairie Rose. Branches elongated, aaoeud, 

 glabrous; spines few, strong, stipular; Ifts. large, 3 to 6, ovate; sti^. narrow, 

 adherent, acwrjiinate ; fis. oorymbous ; cal. glandular, segm. subentire ; stj. united; 

 fv. globous. — Tbis splendid species is a native of Mich, and other States "W. and 

 S. About 20 varieties are enumerated in cultivation, among which is the BaUi^ 

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

 20r. 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 ; Ifls. 3, rarely 6, coriaceous, 

 evergreen, shining, eUiptioal, sharply serrate ; sUp. free, setaceous, deddimus ; fls. 

 solitary ; cal. bristly, sep. 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. Hs. often 3' diam., white. Apr. — Common also 

 in gardens. § China. 



3 R. multiflora Seringe. Many-plowbred, or Japan Rose. Branches, ped. 

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

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

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

 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. braote^ta Linn. Macartney Rose. Branches erect, tomentous ; prickles 

 recurved, often double ; Ifts. 5 to 9, obovate, subserrato, coriaceous, smooth, and 

 shining; stip. fimbriate-setaoeous ; _/&. sohtary, 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.) Pis. large, white. § China. 

 Varieties with cream-colored to scarlet fls. 



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

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

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

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

 3f high, 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 appendiculate, as long as the large, obcordate, pale-red petals. Fr. small, 

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



