bambojus. VI B URN ACE. E. 279 



merely 2-leaved branehlets, involucrate 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 side*. In swamps and marshes along mountain 

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

 Labrador. 



2. SAMBUCUS Tourn. (kldek . 



Small trees or shrubs with warty bark, pinnately compound 

 leaves and compound thyreoid or fastigiate cymes of small 

 white or reddish flowers. Limb of the calyx small, 5-cleft. at 

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

 3-5-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 off 3-4 pairs of lateral primary branches, these mostly trifid and 

 again bifid or trifid: early flowering and fruiting.* 



S. arborescens Nutt Mss. S. pubens car. arborescem T. c(- G. 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 with strong, lanceolate teeth; 1-6 inches long: thyreoid 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 Columbia. 



S. pufoeus 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 while, 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. £oc. of Wash, xi, 40. Shrubby, 4- 



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

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

 4 inches long, 6-1S lines broad, acute or acuminate, subsessile or shortly 

 petioled, sharply serrate, the apices of the teeth usually 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: cyme oblong, somewhat flat- 

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

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

 seed-like, very smooth nutlets l-l)o lines long. In the Cascade Mount- 

 ains from Crate Lake, Oregon to Aiaska. 



S melanocai'pa 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 mountains of eastern Oregon to California and the Rocky 

 Mountains. 



* * Cymes compound, depressed or fastigiate, 5 rayed ; 4 external 

 rays once to thrice 5-rayed, • ut the rays unequal, the 2 outer ones 

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

 and at length reduced to 3-flowered cymelets or to single flowers: berries 

 never red ; nutlets punctate-rugulose. 



S. glauca 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 



