2149. A spray of Rose hips. 



EE. Fls. solitarij, without bracts, onlij 



occasionally corymhose ; sepals 



erect, persistent. 



F. Sepals entire: Irs. on the flowering 



branrhh'ts „s,,„lhj 9-foliolale: 



prirkh s r:fr<inihl. slinder, scat- 



ehjp: 



or ye 



How, 



42) 



Section IX. Pimpinellifoli^ (Species No. 

 EF. Sepals pinnate at the outer 

 edges: Irs. on flowering branch- 

 lets 5-7-foliolate, 

 Prichles straight or hooked, rather stout: fls. yet- 

 low Section X. LrTE^ (Species Nos. «,44) 



Prickles slender, straight: fls. pink or white: Ifts. 



not orir Y^ in. long, incised 



Section XII. Minutifoli.*: (Species Nos. 46,47) 

 DDD. Lvs. of flowering branchlets 21-13- 

 foliolate. 

 Prickles regularly in pairs below the base of 

 petiole: inflorescence corymbose: fr. large, very 



prickly 



- Section XV. MiCROPHYLua: (Species No. 50) 



StTOIART OP SECTIONS. 



VI 1 LAROLIN.E J4-_'H 



VIII ClN-NAMOME.lD L'9-41 



IX PniPiNELLiFOLi.i: 42 



X LUTE^ 4:(, 44 



XI SericE/E 45 



XII Minttifoli^ 46,47 



XIII Bracteat^ 48 



XIV L^viGATJi: 49 



XV MlCROPHTLKS 50 



SUBGENUS HULTHEMIA. Only one Asiatic species, 

 distinguished from all other Boses by the simple, 

 exstipulate leaves. 



1. PSrsica, Michx. (B. simplicifdlia, Salisb. S. ber- 

 berifdlia, Pall. Lbwea berberifdlia, Lindl.). Low 

 straggling shrub, 2 ft. high, with slender, prickly 

 branches : lvs. short-petioled, oral to oblong, acute at 

 both ends, serrate, bluish green, pubescent, %-lii in. 

 long : fls. solitary, yellow, with red eye, about 1 in. 

 across: fr. pricklv. June. N. Persia to Siberia. B.M. 

 7096. B.R. 15:126':. G.C. III. 6:8, 9, 78.-This peculiar 

 Rose is very rare in cultivation, since it is very difficult 

 to grow. It has been successfully cult, in a cool green- 

 house, exposed to the full sun, kept moist during sum- 

 mer and dry from October to March. The only way to 

 propagate it seems to be by suckers; seeds are occa- 

 sionally introduced from its native country. A hybrid of 

 this species with B. involucrata is B. Hdrdii, Cels., 

 with 5-7-foliolate lvs. and large vellowish white fis.. 

 with a deep orange eye. 6.0.11.24:469. Gn. 19, p. 473 

 (nsB.simplicifolia). P.M. 10:195. 



SrBr.EXrS EUROSA. 



Section I. Systvl.k 

 (one of them: Am. ,■ 



sarmentose or clinil. 



entire, reflexed afte 



,ji:uip of about 12 species 

 . II-, II marked by the styles 

 mil r I .rserted column. Stems 

 with hooked prickles : fls. in 

 outer sepals pinnate, rarely 

 rering, caducous. 



Key to Species op Section I. 

 A. Stipules pectinate: prickles usually 



'i'l'a't'e':' 



. multiSlora 



AA. Stipules entire or dentii 

 prickles scattered. 

 B. I^vs. of flowering branches S-5- 



foliolate, pubescent beneath 3. Watsoniana 



4. setigera 

 BB. Lvs. of flowering branchlets usu- 

 ally 9, glabrous 5. Wichuraiana 



BBB. 1/vs. of flowering branchlets 5-7- 

 foliolate. 

 c. Sepals ovate, abruptly aciimi- 

 nate: fl.-buds broadly ovate, 

 abruptly pointed : corymbs 



usually few-fid 6. Bempervirens 



7. arvensis 

 cc. Sepals lanceolate, gradually 

 acuminiite : fl.-buds elon- 

 gated: corymbs usually 

 many-tld 8. moschata 



2. multiflbra, Tbunb. (7?. pohidntha, Sieb. & Zucc. 

 B. intermedia. Ciwr. B. iric'/iiVnc, Koch). Deciduous 

 shrub, with vigorous, long, recurving or climbing 

 branches: Ifts. usually 9, obovate to oblong, acute or 

 obtuse, serrate, pubescent, 9-4-l!'3 in. long: fls. in many- 

 fld. pyramidal corj-mbs, usually white, ^4 in. across or 

 more ;' sepals ovate, abruptly acuminate ; styles glabrous : 

 fr. small, globular. June. Japan, China. B.M. 7119. 

 G.F. 3.405; 4:535; 6:316,317. A.G.18:677. A.P.6:1003. 

 Gn. 49, p. 368 (as B. microcarpa); 55:432. Gng. 5:120, 

 121.— Var. Thunbergi4na, Thory, is the typical form, 

 with small white single fls. Var. cArnea, Thory (var. 

 plena, T>\\>\>. if . ff (! Wrffl , Poir. ) . With double light pink 

 fls. B.M. 1059. B.R. 5:425. Var. platyphylla, Thory, 

 with larger lvs. and larger double, deep pink fls., is per- 

 haps a hybrid. B.R. 16:1372. Many other hybrids have 

 originated in cultivation; they usually show their par- 

 entage by the pectinate stipules. A hybrid with B. 

 rugosa is B. Iwdra, Sieb., with single, rather small 

 fls. B. polydntha, Hort., not Sieb. & Zucc, is a trade 



name for hybrids with B. Chinensis. Gn. 29:530. The 

 Dawson Rose, or B. Dawsonidna, is a hybrid with 

 General Jacqueminot. A very beautiful hybrid and one 

 of the best climbing Roses is Crimson Rambler (Fig. 

 2151), a vigorous grower, with large corymbs of bright 



