170 ROSACES ROSA. 



SAXGU1SORBA. 



* * * Naturalized species. 



K. ROBJGINOFA L. Mant. 564. (SWEET BRIER). Stems stout, armed 

 with stout, recurved spines, without prickles, 4-6 feet high: stipules often 

 dilated: leaflets 5-7, elliptical or oblong-ovate, densely resinous beneath 

 and aromatic, doubly serrate : flowers small, on short hispid pedicels ; se- 

 pals pinnatifid, hispid: fruit large, subglobose to oblong ovate, 6-8 lines 

 long. Becoming common throughout western Washington and Oregon. 



Tribe II. Sanguisorbess Juss. Calyx-tube mostly indurated 

 and contracted at the mouth; the segments vnlvate or rarely imbri- 

 cate in the bud. Petals often wanting. Stamens 1-15, rarely 

 more. Carpels 1-%, rarely 84, dry: style terminal or lateral: 

 stigma often plumose. Seed suspended very rarely ascending. 

 Radicle superior. 



2 SANGUISOKBA L. Gen. n. 146. 



Herbs with pinnate leaves petiolulate leaflets adnate stipules 

 and polygamous or perfect flowers in dense long-ped uncled 

 spikes. Calyx-tube turbinate, contracted at the throat, persist- 

 ent, 2-3-bracteolate, the limb 4-parted, petaloid, deciduous. 

 Petals none. Stamens 4-12 or none. Carpels 1 J , free from the 

 calyx ; styles terminal ; stigma tufted, ovule solitary, suspended. 

 Achenes dry included in the indurated 4-winged calyx-tube. 



S. ofticinalis L. Sp. 169. Stem simple, usually glabrous, 1-2 feet high, 

 much longer than the leaves, from a stout perennial root : leaflets about 4 

 pairs, ovate or oblong, cordate at base, coarsely "serrate, 3^-2 inches long, 

 on petioles 2-6 lines long: flowers deep purple or red, polygamous, in ob- 

 long spikes 6-12 lines long or more ; bracts often pubescent; calyx-lobes 

 ovate-lanceolate, often acute, 1 line long; stamens but little if any longer 

 than the sepals : filaments filiform : fruit a line long. Common in cold 

 mountain marshes, Alaska to California and the Rocky Mountains. Also 

 Europe. 



S. media L. Sp. ed. 2, 169. Stems slender, simple, but little longer 

 than the leaves, glabrous, 1-3 feet high, from a stout perennial root: leaf- 

 lets elliptical to ovate or oblong, cordate with a deep narrow sinus, coarsely 

 serrate with rounded gland ular-apiculate teeth, 1-3 inches long, on stout 

 petioles 1-2 inches long, the lowest ones smallest: flowers dark purple, 

 in a dense oblong head ; stamens longer than the sepals ; filaments flat. 

 In marshes, Alaska and Brit. Columbia, perhaps northern Washington. 



S. Sitchensis C. A. Meyer Trautv. & Meyer Fl. Ochot. 34. Stem 

 stout, 2-4 feet high, from a stout perennial root, pan iculately branched 

 above: leaves ample, 1-3 feet long; leaflets 13-21, oblong to ovate, 1-3 

 inches long, coarsely and often doubly serrate with acute gland-tipped 

 teeth, on pedicels 6-12 lines long: flowers white or slightly tinged with 

 purple, in a dense cylindrical spike 2-6 inches long; stamens 3-4 times 

 longer than the sepals, filaments flat. In salt-marshes along the coast 

 and islands of Alaska, to be looked for in northern Washington. 



S. annua Nutt. T. & G. Fl. i 429. Poterium annuum Nutt. Glabrous; 

 stems .slender, branching, 6-15 inches high from an annual root : leaflets 

 3-6 pairs, ovate to oblong, deeply pectinate-pinnatifid, 4-8 lines long, ses- 

 sile or nearly so : flowers perfect, greenish-white, in dense ovoid or oblong 

 heads 3-12 lines long; bracts scarious, ovate, a line long, persistent; sta- 

 mens 2-4, much shorter than the calyx, fruit shorter than the bracts. In 

 dry open places, Washington to California, Indian Tert and the upper 

 Missouri vallev. 



