490 NORTH AMERICAN FLORA [VoLUME 22 
I. Synstylae. Climbing or trailing species, with curved prickles, corymbose inflorescence, 
adnate stipules, and mostly thick, often evergreen leaflets; styles connate into a slender ex- 
serted column; sepals reflexed after anthesis and soon deciduous; achenes rather few; hy- 
panthium often tapering at the base. Introduced and two native species. 
1. Rosa multiflora Thunb. Fl. Jap. 214. 1784. 
Rosa polyantha Sieb. & Zucc. Abh. Akad. Miinch. 47: 128. 1845. 
Stem 1-2 m. high, climbing, reddish, armed with mostly paired infrastipular curved 
prickles, which are 4-5 mm. long, flattened below; stipules adnate, 15-20 mm. long, pectinately 
lobed and glandular-ciliate; leaflets 5-9, deciduous, petiolulate, obovate or elliptic, obtuse or 
acute, sharply serrate, dull above, grayish-green beneath, softly pubescent, 2-3.5 cm. long; 
inflorescence pyramidal, often many-flowered, softly pubescent; lower bracts pectinate, the 
upper lanceolate; hypanthium globose to ellipsoid, pubescent, 5-6 mm. broad; sepals ovate- 
lanceolate, 12-15 mm. long, short-acuminate or with lanceolate appendages, densely pubes- 
cent, the outer often lobed, in fruit reflexed and deciduous; petals mostly white, 10-15 mm. 
long: styles exserted, united, glabrous. 
TYPE LocALiIty: Near Nagasaki, Japan. 
DISTRIBUTION: Native of Japan and China; occasionally escaped from cultivation; naturalized 
in Maryland, Alabama, and Costa Rica; on ballast, Washington. 
ILLUSTRATIONS: Bot. Mag. pl. 1059, 7119; Redouté, Roses 2° pl. opp. 67; pl: opp. 69; Bot. Reg. 
5: pl. 425; 16: pl. 1372; Nouv. Duham. 7: pl. 17; Willm. Gen. Rosa $l. opp. 23; pl. opp. 26; Garden 
& Hotes 3: f. 51; C. K. Schneid. Handb. Laubh. 1: f. 319, e-g’, f. 320, b-b’; Stand. Cycl. Hort. f. 
3435. 
2. Rosa moschata Mill. Gard. Dict. ed. 8. Rosa no. 13. 1768. 
Stem branched, sarmentose or climbing, 2-4 m. high, armed with scattered, somewhat 
curved and rather strong prickles; stipules adnate, about 1 cm. long, narrow, somewhat glandu- 
lar-dentate; free portion lanceolate, spreading; rachis and petiole sparingly glandular; leaflets 
5-7, oval, elliptic, or lance-elliptic, more or less acuminate, 1.5—7 cm. long, finely serrate, 
usually pubescent and paler beneath, more or less persistent; flowers corymbose; pedicels 
more or less glandular-hispid; hypanthium ellipsoid, more or less pubescent and glandular; 
sepals narrowly lanceolate, long-acuminate, caudate-attenuate, glandular and pubescent with- 
out, tomentose within, soon reflexed and in fruit deciduous, 15-20 mm. long, the outer some- 
times lobed; petals white, 15-20 mm. long; styles exserted, united, hairy. 
TYPE LOCALITY: Not given. 
DISTRIBUTION: Occasionally escaped from cultivation and naturalized in Jamaica, Porto Rico, 
and Alabama; native of southern Asia and Abyssinia. 
ILLUSTRATIONS: Jacq. Hort. Schoenb. pl. 280; Hayne, Arzn. Gew. 11: pl. 33; Redouté, Roses 
1: pl. opp. 33; pl. opp. 99; Bot. Reg. 10: pl. 829; Willm. Gen. Rosa fl. opp. 34; pl. 9; pl. opp. 37; pl. 
opp. 39; C. K. Schneid. Hand. Laubh. 1: f. 319, m-—n?; f. 320, g. 
3. Rosa sempervirens L. Sp. Pl. 492. 1753. 
Rosa alba All. Fl. Ped. 2: 139. 1785. Not R. alba. 1753. 
Stem climbing, 5-20 m. high, armed with scattered, curved prickles, which are about 
5 mm. long and flattened at the base; stipules small, adnate, about 1 cm. long, glabrous on 
both sides, glandular on the margins; rachis and petioles often sparingly prickly; leaflets 5—7, 
those of the floral branches usually 5 or those of the uppermost leaves sometimes 3, elongate- 
oval or ovate, usually rounded at the base, abruptly acuminate at the apex, appressed-serrate, 
glabrous on both sides or rarely pubescent on the veins beneath, shining above, and evergreen; 
flowers corymbose or sometimes solitary; pedicels glandular-hispid; hypanthium ellipsoid 
or subglobose, glandular-hispid; sepals ovate, abruptly acuminate, glandular-hispid on the 
back, tomentose on the margins and within, reflexed and deciduous; corolla white, 15-25 mm. 
long; styles exserted, united, usually villous. 
TYPE LOCALITY: Germany. 
DISTRIBUTION: Cultivated and rarely escaped in the south; naturalized in Porto Rico according 
to Urban; native of southern Europe and northern Africa. 
ILLUSTRATIONS: Redouté, Roses 2: pl. opp. 15; Bot. Reg. 6: pl. 465; Dill. Hort. Elth. pl. 246; 
Nouv. Duham. 7: pl. 13, f. 1. 
