Obdeb 47.— rosacea. 337 



22 R. Cr&llica. L. Common French Rose. St. and petiolea armed with 

 numerous, fiae, scattered prickles ; Ifta. mostly 5, elliptical or oval, thick ; fls. 

 erect ; peta.lS| 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 the 

 Velvet, Garmine, Gai-naiwn, &c. Many of them are beautifuUy variegated, as the 

 Tricolor, York and Lancaster, Nosegay, Picolee, kc. The dried petals are used in 

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



23 R. pimpinellifolia Ser. Scotch, or Burnet Rose. St. densely armed 

 with straight, acerose prickles; Ills. 5 to 9, roundish-obtuse, smooth, simply 

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

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

 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. — 

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



16. AGRIMO^NIA, L. Agrimoxy. (Gr. aypof, a field, fidvof, alone , 

 a name of dignity for its medicinal qualities.) Cal3"x tube turbinate; 

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

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

 terminal ; achenia included in tbe indurated tube of the calyx. — 11 

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



X A. Bupatoria L. Hirsute ; lvs. interruptedly pinnate, upper ojies 3-foliate, 

 Ifts. to 1, lance-oval or oiovate, with small ones interposed, coarsely dentate ; stip. 

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

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

 nearly smooth beneath, l| to 3' long, J 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. 



p. HIES0TA Torr. Smaller and more hairy. 



J. PAEVIPLOEA Hook. Less hairy ; fls. smaller, on longer pedicels. (A. par- 

 viflora DC.) 



2 A. parviflora Ait. St. and petioles hirsute; lvs. interruptedly pinnate; Ifls. 

 nume7vus (9 to 11), 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. W. to Iowa and Tenn. Sts. 3 to 4f high, tl;o 

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

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

 Aug. (A. suaveolens Ph.) 



3 A. inoisa Torr. & Gr. Pubescent and hirsute; lvs. interruptedly pinnate ; lfts. 

 7 to 11, with smaller ones interposed, oblong, mcisely pinnatifid, canescent 

 beneath; stip. deeply cleft; fls. small, remote, nearly sessUe 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 Vabl.— On the White Hills of N. H. 

 Prof. Feck (Pursh), — but never since seen witbin our limits. 



18. GE'UBI, L. AvEKS. (Gr. ysvu, 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 ; achenia Co, aggregated on 

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

 culate and bearded style. — i| Lvs. pinnately divided. 



9-2 



