344 Obdbe 41.— ROSACEjE. 



l-celkd, 1 to 2-valved, 1 to lO-seeded; styles terminal. — if Unarmed 

 shrubs or herbs. Branches and Ivs. alternate. Fls. white or rose- 

 color, never yellow. 



5 Shrubs with lobed or pinnate, Btipnlate leaves Noa. 1, 3 



I Shrubs witli simple loaves and no stipules Nos. 8-HJ 



I Herbs perennial, with interruptedly pinnate leaves and perfect fls Nos. T — 9 



g UerlDS perennial, with twice and thrice pinnate-leaves and dioecious fls No. 10 



1 S. opttlifolia L. Ninebark. Nearly glabrous; Ivs. roundish, 3-lohed, petio- 

 late, doubly serrate ; corymbs pedunculate ; carp. 3 to 5, inflated, and exceeding 

 the cal. in fruit. — A beautiful shrub, 3 to 5f high, on the banks of streams, Can., 

 Ind., Mo., S. to Ga., rare. Bark loose, outer layers deciduous. Lvs. 1 to 2J' 

 long, nearly as wide, sometimes cordate at base, with 3 obtuse lobes above ; 

 petioles 6 to 9'' long. Corymbs resembling simple umbels, hemispherical, 2J' 

 diam. Fls. white, often tinged with purple. FoUieles diverging, smooth, shining, 

 purple, 2-seeded. Jn. f 



/3. FEERUGLNEA Nutt. Lvs. and branches brownish tomentous. — Ga., Fla. 

 2 S. BOrbifolia L. Shrub stout, with straggling branches and rough bark ; 

 few. UTiapially pinnate, Ifts. oblong-lanceolate, the terminal often larger, irregularly 

 lobed, all acuminate, sessile and doubly serrate ; fls. in thyrsoid panicles, large, 

 numerous, white. — In shrubberies. Height 4 to 6f. May. f Siberia. 



3 S. tomentdsa L. Hardhaok. Ferruginous-tomentous ; lvs. simple, ovate- 

 lanceolate, smoothish above, unequally serrate ; rac. short, dense, aggregated in 

 a dense, slender, terminal panicle ; carp. 5. — A small shrub, common in pastures 

 and low grounds, Can. and U. S., particularly eastward. St. very hard, brittle, 

 consequently troublesome to the scythe of the haymaker. Lvs. dark green 

 above, rusty-white, with a dense tomentum beneath, crowded, and on short peti- 

 oles. Fls. small, very ■numerous, with conspicuous stamens, light purple, forming 

 a slender, pyramidal cluster of some beauty. The persistent fruit in winter fur- 

 nishes food for the snow-bird. Jl. Aug. 



4 S. salicifolia L. Nearly glabrous ; lvs. oblong, obovate or lanceolate, sharply 

 serrate ; rac. forming a more or less dense, terminal panicle ; carp. 5. — A small 

 shrub, in meadows, thickets, U. S. and Brit. Am. St. 3 to 4f higl:, slender, pur- 

 plish, brittle. Lvs. smooth, 1 J to 3' long, J to J as wide, acute at each end, petio- 

 late, often with small leaves in the axils. Fls. white, often tinged with red, 

 small, numerous, with conspicuous stamens, in a more or less spreading panida 

 Jl. Aug. f (S. alba Bw.) 



5 S. oorymbosa Raf. Lvs. ovate or oblong-oval, ineisely and unequally serrate 

 near the apex, whitish, with minute tomentum beneath ; corymbs large, terminal, 

 pedunculate, fastigiate, cormpound, dense, often leafy; sty. and carp. 3 to 5. — Moun- 

 tains, Penn., Fauquier Co., Ta. (Robbins), to Ky., S. to Fla. St. slightly pubes- 

 cent, reddish, 1 to 2f high. Lvs. nearly smooth above, entire towards the base, 

 2 to 3' by f to If. Fls. innumerable, white or rose-colored, in a corymb 4 to 6' 

 broad. May, Jn. f (S. Chamasdrifolia Ph.) 



6 S. hypericifdlia L. Italian May. St. Peter's Wreath. Lvs. oho- 

 vate-oUong, obtuse, tapering at base to a petiole, entire or slightly dentate, nearly 

 smooth; fls. in lateral, pedunculate corymbs, or sessile umbels; pedicels smooth or 

 pubescent ; segm. of the cal. ascending. — Cultivated in gardens and shrubberies. 

 Shrub 3 to 5f high, nearly smooth in all its parts. Fls. white, in numerous um- 

 bels, terminating the short, lateral branches. Pedicels as long as the lvs. 

 May. t 



7 S. ulmarla L. Double Meadow Sweet. Lvs. 3 to T-foliate, with minute 

 Ifts. interposed, lateral Ifts. ovate-lanceolate, terminal one much larger, palmaidy 6 

 to 1-lobed, aU doubly serrate, and whitish tomentous beneath ; stip. reniform, ser- 

 rate ; pan. corymbous, long-pedunculate. — ^In gardens, where the numerous white 

 fls. are mostly double. Jl. f 



8 S. lobata L. Queen of the Prairie. Lvs. pinnately 3 to T-foliate, often 

 with smaller Ifts. interposed, lateral Ifts. of 3 lanceolate lobes, cuneate at base, ter- 

 minal one large, pedately 1 to 9-parted, lobes all doubly serrate; stip. reniform; 

 pan. large, cymously branched ; fls. deep rose-color; carp. 6 to 8. — An herb'of 



