i4b i. K/\Mj:nCULACE^. Hydrastis. 



barren flowers with numerous slender filaments and yellow anthers, the fertile 

 ones smaller, with shorter stamens. Fruit oval, striate. May. 



2. T. CoRNUTi. (T. Corynellum. DC.) Meadmo Rue. 



Lfts. obtusely 3-loDed, paler underneath ; Jls. 9 (f] filaments clavate; fr. 

 sessile, striate. — A handsome herbaceous plant, common in meadows. Stem 

 3 — 4f high, smooth, hollow, jointed, furrowed. Leaves resembling those of tne 

 columbine (Aquilegia), green above, smooth, several times compounded. 

 Leaflets 1 — 2' long, § as wide. Petivjles sheathing at base. Panicles large 

 and difi'use. The barren flowers have numerous club-shaped stamens, with 

 oblong yellow anthers. Fertile flowers smaller and less crowded. Jn. Ji. 



3. T. ANEMONOiDEs. Michx. (Anemone Ihalictroides. lAnn.') Rite Aiie- 

 mone. 



Floral Ivs. petiolate, simple, whorled, reserhbling an involucrum; radical 

 Iv.t. biternate ; Jls. umbeled. — Woods and pastures, Northern, Middle, and West- 

 ern States. The root of this little herbaceous plant consists of several oblong 

 tubercles. Stem erect, 6 — 8' high, slender, bearing several white flowers at top 

 in a sort of umbel. Leaves J^l' long, i as wide, cordate at base, 3-lobed, on 

 petioles | — U' long; radical common petioles 2 — 4' long. Apr. May. 



18. MYOSURUS. Dill. 



G)'. uvs, fivos, mouse, ovpa, tail ; alluding to the long spike of carpels. 



Sepals 5, produced downwards at base below their insertion; 

 petals 5, with slender, tubular claws ; stamens 5 — 20 ; achenia very 

 closely spicate on the elongated torus. — ® Lvs. Ii7icar, entire, radical. 

 Scapes l-flowercd. 



M. MINIMUS. (M. Shortii. Raf.) Mouse-fail. 



Prairies and bottoms, 111., Mmd ! to La. and Oreg., NuttaU. A diminutive 

 plant, remarkable for its little terete spikelet of fruit, which is often an inch 

 long.' Leaves 1 — 3' long, 1 — 2" wide. Scape a little taller, with a single 

 minute pale-yellov/ flower at top. Apr. 



19. ZANTHORHlZA. 



Gr. ^av3os, yellow, fii^a, root. 



Sepals 5 ; petals 5, of 2 roundish lobes, raised on a pedicel ; sta- 

 mens 5 — 10; ovaries 5 — 10, beaked with the styles, 2 — 3-ovuled ; 

 follicles mostly 1-seeded, seed suspended. — Siijfruticose ; st. and hark 

 yellow and bitter. Lvs. finnalely divided. JZac. axillary, compound, 

 Fls. small, dark purple, often 9 ^ J"- 



: Z. APiiFOLiA. L'Her. (Z. simplicissima. Michx.) 



I River banks, Penn. to Ga. Root thick. Stem short, woody, leafy above. 

 Leaves glabrous, about 8' long, including the long petioles. Leaflets 5, 2 — 3' 

 long, sessile, incisely lobed and dentate. Racemes many-flowered, appearing 

 with the leaves. Follicles spreading, U" long. March, April. 



20. HYDRASTIS. 5 



Gr. vSap, water; the plant grows in watery places. 



Sepals 3, ovate, petaloid, equal ; corolla ; stamens 00, a little 

 shorter than the sepals ; baccate fruit composed of numerous, aggre- 

 gate, 1-seeded acines. — % icith 2 lvs. and 1 Jloiver. 

 H. Canadensis. Turmcric-ront. 



The only species. It grows in bog meadows, Can. to Car. and Ky. ! Rare. 

 Root of a deep y»llow color internally" Stem 6 — 9' high, becoming purplish, 

 hairy above. Leaves 2 only, alternate, on the upper part of the stem, petiolate, 

 emarginate at base, palmate, with 3 — 5 lobes. Peduncle terminal, solitary, 

 1 -flowered. Sepals reddish white, of short duration. Fruit red, juicy, resem- 

 bling the raspberry. Seeds nearly black. May, Jn, 



