148 I. RANUNGULACEZ. Hyprastis. 
barren flowers with numerous slender filaments and yellow anthers, the fertile 
ones smaller, with shorter stamens. Fruit oval, striate. May. 
\ 2. T. Cornttr. (T. Corynellum. DC.) Meadow Rue. 
' Lfts. obtusely 3-lobed, paler underneath ;, fls. 9 3; filaments clavate; fr. 
sessile, striate—A handsome herbaceous plant, common in meadows. Stem 
3—4f high, smooth, hollow, jointed, furrowed. Leaves resembling those of the 
columbine CAquilegia), green above, smooth, several times compounded. 
Leaflets 1—2’ long, 3 as wide. Petioles sheathing at base. Panicles large 
and diffuse. The barren flowers have numerous club-shaped stamens, with 
oblong yellow anthers. Fertile flowers smaller and less crowded. Jn. Jl. 
3. T. aNEMoNOipES. Michx. (Anemone thalictroides. Linn.) Rue Ane- 
mone. 
Floral lvs. petiolate, simple, whorled, resembling an involucrum; radical 
lvs. biternate; fis. umbeled.—W oods 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 umbe]l. Leaves 3—1/ long, 3 as wide, cordate at base, 3-lobed, on 
petioles 3—1}’ long; radical common petioles 2—4 long. Apr. May. 
18. MYOSURUS. Dill. 
Gr. PLUS, vos, 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. linear, entire, radical. 
Scapes 1-flowered. 
M. minimus. (M. Shortii. Raf.) Mouse-tail. 
Prairies and bottoms, [ll., Mead! to La. and Oreg., Nuttall. A diminutive 
peo remarkable for its little terete spikelet of fruit, which is often an inch 
ong. Leaves 1—3’ long, 1—2” wide. Scape a little taller, with a single 
minute pale-yellow flower at top. Apr. 
19, ZANTHORHIZA. 
Gr. EavSos, yellow, prfa, 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.—Suffruticose ; st. and bark 
yellow and bitter. Lvs. pinnately divided. Rae. axillary, compound, 
Fis. small, dark purple, often 2 2 3. 
7. apurouia. L’Her. (Z. simplicissima, Michz.) 
River banks, Penn. toGa. Rootthick. 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, 14’ long. March, April. 
20, HYDRAS Tis: 
G7. 4dwp, water; the plant grows in watery places. 
Sepals 3, ovate, petaloid, equal; corolla 0; stamens 00, a little 
shorter than the sepals; baccate fruit composed of numerous, aggre- 
gate, 1-seeded acines.—% with 2 lvs. and 1 flower. 
H. Canavensis. Twrmeric-root. : 
The only species. It grows in bog meadows, Can. to Car, and Ky.! Rare, 
Root of a deep yellow 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. — 
