ORDER 47. ROSACE^E. 337 



22 R. G-illica L. COMMON FRENCH ROSE. St. and petioles armed with 

 numerous, line, scattered prickles ; Ifts. mostly 5, elliptical or oval, thick ; fls. 

 erect ; petals, large, spreading ; sep. ovate ; fr. ovoid and with the peduncles 

 hispid. The common red rose of gardens, from which have originated not less 

 than 300 varieties, known in cultivation, and registered in catalogues, as tho 

 Velvet, Carmine, Carnation, &c. Many of them are beautifully variegated, as tho 

 Tricolor, York and Lancaster, Nosegay, Picotee, &c. Tho dried petals are used in 

 medicine and from them are extracted tinctures for cooking. Jn., Jl. 



23 R. pimpinellifolia Ser. SCOTCH, or BURNET ROSE. St. densely armed 

 with straight, aserose prickles; Ifts. 5 to 9, roundish-obtuse, smooth, simply 

 serrate ; 11s. small, usually roseate, but changing in the numerous varieties to 

 white, red or yellow. Native of Scotland and other parts of Europe. Theso 

 shrubs are but 2 to 3f high, with small, delicate leaflets. Fls. numerous, 

 globular, very fine, of all colors, even yellow. May, Jn. (R. spinosissima L.) 



24 R. Banksia L. BANKS' ROSE. Smooth ; Ifts. lanceolate, crowded, 3 to 

 5, scarcely serrate ; stip. deciduous ; fls. umbellate ; fr. globular, nearly black. 

 Prom China. Thornless shrubs, with small, cup-shaped fls. Not hardy. 



18. AGRIMCTNIA, L. AGRIMONY. (Gr. aypb^ , a field, fiovo^ alone , 

 a name of dignity for its medicinal qualities.) Calyx tube turbinatc; 

 contracted at the throat, armed with hooked bristles above, limb 5- 

 cleft, connivent in fruit; petals 5 ; stamens 12 to 15 ; ovaries 2; styles 

 terminal; achenia included in the indurated tube of the calyx. If 

 Lvs. pinnately divided. Fls. yellow, in long, slender racemes. 



1 A. Eupatoria L. Hirsute ; Ivs. interruptedly pinnate, upper ones 3-foliate, 

 Ifts. 5 to 7, lance-oval or obovate, with small ones interposed, coarsely dentate ; stip. 

 large, dentate ; petals twice longer than the reflexed calyx. Roadsides, borders 

 of fields, Can. and TJ. S., common. St. 1 to 3f high, branching, leafy. Lfts. 

 nearly smooth beneath, 1 to 3' long, ^ as wide, sessile, terminal one with a 

 petiolule 1 to 3" long. Rac. 6 to 12' long, spicate. Fls. yellow, about 4" diam. 

 on very short pedicels. Calyx tube curiously fluted with 10 ribs, and sur- 

 mounted with reddish, hooked bristles. Jl. 



/?. HIRSUTA Torr. Smaller and more hairy. 



y. PARVIFLORA Hook. Less hairy ; fls. smaller, on longer pedicels. (A. par- 

 viflora DC.) 



2 A. parviflora Ait. St. and petioles hirsute ; Ivs. interruptedly pinnate ; If Is. 

 numerous (9 to 17), crowded, pubescent beneath, linear-lanceolate, equally and in- 

 cisely serrate, with small ones interposed; stip. acutely incised; rac. spicate- 

 virgate ; fls. small ; petals longer than the erect calyx ; fr. hispid. Woods and 

 dry meadows, Penn. to S. Car. \V. to Iowa and Tenn. Sts. 3 to 4f high, tho 

 hairs spreading, brownish and glandular. Lfts. 2 to 3' by to -', with smaller 

 ones intermixed. Petals yellow. The plant has an agreeablo balsamic odor. 

 Aug. (A. suaveolens Ph.) 



3 A, incisa Torr. & Gr. Pubescent and hirsute ; Ivs. interruptedly pinnate ; Ifts. 

 7 to 11, with smaller ones interposed, oblong, incisely pinnatijid, canescent 

 beneath ; stip. deeply cleft; fls. small, remote, nearly sessile in the slender 

 racemes. N. Car. to Fla. (at Macon, Ga.) Fls. rather larger than in No. 2. Cal. 

 segm. very short. Jl., Aug. 



17. DRY^AS, integrifolia Vahl. On the White Hills of N. H. 

 Prof. Peck (Pursh), but never since seen within our limits. 



18. GE'UM, L. AVENS. (Gr. yevw, to taste well ; in allusion to the 

 taste of the roots.) Calyx 5-cleft, with 5 alternate segments or bractlets 

 smaller and exterior ; petals 5 ; stamens oo ; acheriia oo, aggregated on 

 a dry receptacle, and caudate with the persistent, mostly jointed, geni- 

 culate and bearded style. 1 Lvs. pinnately divided. 



22 



