138 ROSACE.E. (rose FAMILY.) 



♦ • Styles (listiiirl, iuclHchd : jluwers rtti or white. 



2. R, Carolina, L- Stem erect, tiiiumtli, arTiied witli stout recurved 

 sti]inlar jiricklcs ; Iciitlcts 5 - 9, oblong or cllipticiil, acute, finely serrate, dull 

 and .sniootliisii aliove, the lower surface paler, or, like the j)rickly jietioles and 

 caudate calyx lol)es, tonientose ; Howers single or corymbose ; calyx tube and 

 peduncles glandular-hispid. — 8wamps. June. — Stem 4°-6° high, com- 

 monly ])nrplisli. Fruit de])re.ssed-globose, glandular. 



3. R. humilis, Marsh. Stem h)\v, erect, arnnil witli bristles and .stout 

 stipular prickles ; leaflets mostly 5, ellij)tical or oblong-lanceolate, sharply ser- 

 rate, smooth and shining above, paler and often sonicwliat pubescent beneath; 

 flowers .solitary, or 2-3 together; jieduncles and calyx glandular, the latter 

 with foliaceous, often incised lobes. (H. parviflora, Ell.) — Mostly in dry 

 soil, common. May- June. — Stem l°-3° higli. A vari:il)Ie species. Stem 

 sometimes spineless. 



4. R. rubiginosa, L. (Eglantine.) Stem erect or curving, armed 

 with very stout prickles; leaflets 5-7, oval or obovate, serrate, glandular be- 

 ueath ; flowers mostly solitary, on hispid peduncles; fruit obovate. (R. 

 suaveolens, P«ja7(.) — Waste places. Introduced. Branches yellowish green. 

 Leaves fragrant. 



6. R. laevigata, ^lichx. (Cherokee Rose.) Stem long, trailing, 

 smooth, the brandies armed with very stout and curved j)rickles, leaves ever- 

 green, mostly tvifoliolate ; leaflets smooth and shining, lanceolate, the midrib 

 hispid ; stipules deciduous ; flowers large, solitary, white ; calyx very bristly. 

 — Common in cultivation. 



16. CRAT^GUS, L. Haavthorn. 



Calyx urn-shaped ; the limb 5-cleft, persistent. Petals 5, orbicular, con- 

 cave. Stamens few or many. Styles 1-5, distinct. Fruit fleshy, containing 

 1-5 bonv nutlets. — Thorny shrubs or trees. Leaves simple, serrate or vari- 

 ouslv lobed. Flowers white, axillary and solitary, or in C(jrymbs terminating 

 short lateral branches. Stipules on the young branches linear, or lunate and 



serrate. 



* Corymbs compound , maiiy-Jlowered. 



-t- Emit small, not larger than a pea. 



1. C. spathulata, Michx. Young branches tomentose, otherwise nearly 

 smooth and glandless throughout; leaves small, spatulate, crenate at the sum- 

 mit ; tliose on the young shoots larger and incisely lobed ; calyx lobes very 

 short; styles 5; fruit very small, red. — River banks, April. — A .small tree. 

 Corymbs sometimes slightly pubescent. Stipules lunate on the young 

 branches. 



2. C. apiifolia, Miclix. Young branches, leaves, and corymbs whitened 

 with soft hairs; leaves small, deltoid, pinnately 5-7-lobed, sharply toothed, 

 nearly smooth when old, truncate or cordate at the base ; styles 1 -3, filiform ; 

 fruit globular, red. — River swamps. March - April. — A small tree. Leaves 

 Y- I'long. 



3. C. cordata, Ait. Young branches, leaves, and corymbs softly pubes- 

 cent, soon smoothish ; leaves deltoid-ovate, truncate or cordate at the base, 



