ROSACE AE. 27 



in fruit about 1 cm. broad: sepals glandular-hispid on the back: petals 2-3 

 cm. long, rose-colored. CLIMBING-ROSE. PRAIRIE-ROSE. 

 Thickets, low grounds, and woods, m. and w. Fla. (Vont.) 



2. R. laevigata Miehx. Stems high-climbing, 2-5 m. high, armed with stout 

 recurved, more or less flattened prickles, rarely with some intermixed bristles: 

 leaflets 3 or rarely 5; blades lanceolate or elliptic, finely but sharply serrate, 

 evergreen, subcoriaceous, glabrous, dark-green and shining above, paler and 

 reticulate beneath, petioluled: flowers solitary: peduncle and hypanthium 

 strongly hispid: sepals often more or less glandular-bristly: petals cuneate- 

 obcordate, 3^i cm. long, white or rarely rose-colored: hypanthium in fruit 

 pyriform, bristly, 3.5-4 cm. long, 2 cm. broad. CHEROKEE-ROSE. 



Woods, roadsides, and thickets, n. Fla. and the upper pen. Nat. of China. 

 (Cont., W. I.) 



3. R. bracteata Wendl. Stems usually decumbent or sarmentose, armed with 

 usually paired stout recurved prickles: leaflets 5-9, persistent; blades cori- 

 aceous, glabrous or lightly pubescent on the midvein beneath, dark-green and 

 shining above, paler beneath, obovate, finely serrulate, short-petioluled : flowers 

 solitary or a few together, short-pedicelled : sepals tomentose on both sides: 

 petals white, about 3 cm. long, deeply obcordate: hypanthium in fruit pyri- 

 form, 1.5-2 cm. long, and nearly as broad, densely tomentose. MACARTXY- 



ROSE. 



Pine woods and thickets, n. Fla. and the upper pen. Nat. of China. (Cont., W. I.) 



4. R. palustris Marsh. Stems usually tall, 0.3-2 m. high, erect, armed with 

 strong but rather short, more or less curved prickles, which are usually paired: 

 leaflets 7, rarely 9; blades dull and dark-green, glabrous or nearly so above, 

 paler and more or less finely appressed-puberulent beneath, short-petiolate, 

 lance-elliptic or oblanceolate on vigorous shoots, finely and closely serrulate, 

 with simple non-glandular teeth: flowers usually corymbose, sometimes solitary, 

 leafy -bracted : hypanthium subglobose or somewhat depressed, glandular-hispid, 

 usually acute at the base, in fruit 10-12 mm. broad: sepals tomentose within 

 and on the margins, reflexed or spreading after anthesis, soon deciduous: 

 petals obcordate, rose-colored, 1.5-2 cm. long. [R. Carolina L. 1762. Not 

 E. Carolina, L. 1753.] SWAMP-ROSE. 



Swamps and low grounds, n. Fla. (Cont.) 



5. R. floridana Eydb. Stems low, 1 m. high or less with spreading flexuous 

 branches, armed with short curved prickles: leaflets 5; blades dull and dark- 

 green and glabrous above, somewhat paler and usually wholly glabrous beneath, 

 finely and closely serrulate, with simple, non-glandular teeth: flowers usually 

 solitary, rarely in pairs: hypanthium globose or somewhat depressed, glandular- 

 hispid, in fruit 8-9 mm. thick: sepals tomentose on the margins: petals obcor- 

 date, 1.5-2 cm. long, rose-colored. 



Open woods, e. Fla. (Cont.) 



6. R. lancifolia Small. Stems branching, 1-2 m. high, armed with stout, 

 straight prickles: leaflets 3-7; blades lanceolate or oblong-lanceolate, sub- 

 coriaceous, finely crenate-serrulate, glabrous, somewhat shining above, sessile: 

 flowers corymbose: hypanthium somewhat glandular-hispid, globose, in fruit 

 8-10 mm. thick : sepals often with a few subulate lateral lobes : petals not seen. 



Margins of cypress swamps, pen. Fhi. (Endemic.) 



7. R. Carolina L. Stems low, slender, 3-10 dm. high, terete, glabrous, usually 

 very bristly when young and armed with slender, straight, paired, terete, infra- 

 stipular prickles 5-8 (rarely 10) mm. long; branches usually not bristly, 

 either with infrastipular prickles or sometimes unarmed: leaflets usually 5, 

 rarely 7; blades elliptic or lance-elliptic, rarely oval or oblanceolate, glabrous 

 but not very shining above, usually somewhat paler and pubescent on the veins 

 or glabrate beneath, sharply and regularly serrate with ascending teeth, usually 



