BAMBOJUs. VIBlIRNACEiE. 279 



merely 2-leaved branchlets, involuorate with slender, subulate caducous 

 bracts, destitute of neutral, radiant flowers : stamens very short : berries 

 light red, 4-6 lines in diameter, globose to oblong; stone flat, orbicular, 

 not furrowed on the sides.. In swamps and marshes along mountain- 

 streams, Oregon to Alaska, the Rocky Mountains, New Hampshire and 

 Labrador. 



2. SAMBtJCUS Tourn. (kldbk). 



Small trees or shrubs with warty bark, piiinately compound 

 leaves and compound thyrsoid or fastigiate cymes of small 

 white or reddish flowers. Limb of the calyx small, -S-cleft, at 

 length obsolete. Corolla rotate, or nearly ijo. Stamens 5. Ovary 

 3— 3-celled, forming small, baccate drupelets, with 3-5 cartilagi- 

 nous nutlets. Embryo nearly the length of the albumen. 



* Cymes compound, thyrsoid-paniculate; the axis Continued and 

 sending oft j-4 pairs of lateral primary branches, these mostly trifid and 

 again bifid or trifld : early flowering and fruiting. 



S. arborescens Nutt Mss. S. puhena var. arborescens T. & Q. Fl. ii, 

 13. A large shrub or small tree, 10-30 feet high with spreading branches : 

 leaves ample ; leaflets lanceolate to ovate, scarcely acuminate, closely er- 

 rate w'ith strong, lanceolate teeth; 1-6 inches long: thyrsoid cyme ovate 

 to semi-orbicular ; flowers white to yellowish, usually drying brownish; 

 fruit small, scarlet. On rich, alluvial lands along rivers, etc. Oregon to 

 British Columhia. 



S. pubens Michx Fl. i, 180 Stems 2-12 feet high with spreading 

 branches ; leaves from pubescent to nearly gla rous : leaflets 5-7, ovate- 

 oblong to ovate-lanceolate, acuminate, thickly and sharply serrate: thyrsi- 

 form cyme ovate or oblong: flowers dull white, drying brownish: fruit 

 scarlet, oily : nutlet- minutely punctate-rugulose Rocky banks and open 

 woods, Oreg n to Alaska and across the continent. 



S leiosperma Leiberg Proc. Biol. Soc. of Wash, xi, 40. Shrub>'y, 4- 

 7 feet nigh, forming with its spreading stems loose, open clumps: pith of 

 two-year old shoots yellowish-brown: leaflets 5-7, oblong to lanceolate, 2- 

 4 inches long, 6-lS lines broad, acute or acuminate, subse^sile or shortly 

 petioled, shai-ply serrate, the apices of the teeth usuajly inflexed, smooth or 

 with a scattered, short pubescence, especially on the petioles and the 

 lower surface of the leave along the midrib; stipules present on the flow- 

 ering shoots, subulate, about lines long: pyme oblong, somewhat flat- 

 tened in fruit, scabrous-puberuleint, the branches membranaceously mar- 

 gined at the fo ks: flowers yellowish-white: berry scarlet, containing 3-5 

 seed-like, verj smooth nutlets 1-1)^ lines long. In the Cascade Mount- 

 ains from Grate Lake, Oregon to Alaska. 



S inelanocarpa Gray Proc. .Am. Acad. xix. 76. Stems 2-8 feet high: 

 glabrous or the young leaves slightly pubescent : leaflets 5-7, rarely 9 : 

 cyme convex, as broad as high : flowers white : fruit black, witnout 

 bloom. In the mountain.-" of eastern Oregon to California and the Rocky 



Mountains. 



* * Cyrnes compound, depressed or fastigiate, 5-rayed; 4 external 

 rays once to thrice 5-rayed, i ut the rays unetjual, the 2 outer ones 

 stronger, or in ultimate divisions reduced to these ; central rays smaller 

 and at length reduced to 8-flowered cymelets or to single flowers : berries 

 never red ; nutlets punctate-rugulose. 



8. ^lanca Nutt. T. & G. Fl. ii, 13. A large shrub or small tree 12- 

 30 feet high and 2-12 inches in diameter covered with a dark, close, very 

 distinctly and rather finely fissured bark; glabrous throughout: leaflets 



