lOG ARALIArE.E. (OINSKNG FAMILY.) 



23. OSMORRHIZA, Kaf. 



Cnlvx-tocth ohsolotc. Fruit chivate, angled. Carpuls with bristlj' ribs, fur- 

 rowed on tlio commissure. Vitta; none. — Perennial iierbs witli aromatic roots 

 Leaves 2-teniatc, with the leaflets ovate, toothed or serrate. Umbels opposite 

 the leaves. Involucre and iuvolucel 2 - 5-leaved. Flowers white. 



1. O. brevistylis, l^C. Styles very short, conical ; fruit somewhat taper- 

 ing at the apex. — Mountains of North Carolina and northward. June. — 

 Plant hairy, 1°-U° high. Leaflets thin, acuminate, pinnatifid. 



OuDKU G7. ARALIACEiE. (Ginskng Family.) 



I'n\belliferous herbs, shrubs, or trees, nearly as in the last order ; but 

 the flowers (chiefly polyjramous) with flat and spreading petals, the styles 

 and carpels of tlie baccate fruit usually more than two, and the embryo at 

 the apex of copious fleshy albumen. 



L ARALIA, L. Sarsaparilla. 



Calyx-tccth .5, or none. Petals, stamens, and spreading styles 5. Berry 

 drupaceous, 5-lobod, 5-ccllcd. — Iierbs or sln-ubs. Leaves compound. Umbels 

 corymbed or panicled. Flowers whitish. Berry black. 



* Stems herbaceous. 



1. A. racemosa, L. Stem smooth, leafy, widely branched ; leaves ternatcljF 

 decompound ; leaflets large, broadly cordate, doubly serrate ; umbels very numer- 

 ous, panicled. — Bich woods along the mountains, Georgia, and northward. 

 July. — Boot thick, aromatic. Stem 3° - 5° high. 



2. A. hispida, Michx. Stem leafy, .somewhat shrubby at the base, bristly , 

 leaves bipinnatcly comiiound ; leaflets lanceolate-ovate, sharply serrate ; umbels 

 in naked peduncled corymbs. — Mountains of North Carolina, and northward. 

 June and July. — Stem l°-2° high. 



3. A. nudicaulis, L. Stem naked, short, bearing 3 long-pcduncled um- 

 bels at the ai)ex ; leaf solitary, radical, long-pctiolcd, ternately divided, the 

 divisions cpiinate ; leaflets oblong-ovate, acuminate, serrate. — Mountains of 

 North Carolina, and northward. May. — Root long and slender, aromatic. 

 Stem 1° high, much shorter than the leaves. 



* * Stems troocJi/. 



4. A. spinosa, L. Stem simple, prickly ; leaves very large, crowded at 

 the summit of the stem, bipinnatcly compound ; leaflets thick, ovate, crenate, 

 glaucous beneath ; umbels in very largo hoary panicles. — SwamjjS, Florida to 

 Mississippi, and northward. July and August. — Stem 10° - 15° high. 



2. PANAX, L. Ginseng. 



Calyx minutely 5-toothed. Petals and stamens 5. Styles 2-3. Berry fleshy, 

 drupaceous, 2 - 3-lobed, 2 - 3-celled. — Low herbs, with naked stems, bearing at 



