CiMiciFuoA. RANUNCULACEyE. 23 



Woods, in rich soil, not rare. Fl. Latter part of June - July. Fr. September. A showy 

 plant when in flower. It is a popular remedy in most parts of the United Slates, being consi- 

 dered tonic and astringent, stimulating the secretions of the skin, kidneys, uterus and lungs. 

 See Wood cj- Bache's U. S. Dispens. p. 200. 



14. TIIALICTRUM. Linn. ; Emll. gen. 4772. meadow hue. 



[Grccic, thnlhj to he green or Hourisliing.] 



Sepals 4, rarely 5, petaloid, usually caducous. Petals none. Stamens numerous ; anthers 

 innate. Carpels (achenia) 4-15, pointed with the short style or stigma, sulcata or ribbed, 

 sometimes inflated. Seed suspended. — Perennial herbs. Leaves bi-tritcrnately divided. 

 Flowers co;ymbosc or paniculate, often diojcious or polygamous, greenish-white or yellow. 



^ 1. EuTHALlCTRUM, DC. Carpels ovoid or ollong, ribbed, sessile or slightly siipilate. 

 + S^pak cadurous, shorter than the stamens: root fibrous. 



1. Thalictrum dioicum, Linn. Early Meadoto Rue. 



Very smooth, dicecious or polygamous ; filaments filiform ; anthers linear, elongated, 

 mucronate ; leaves on short petioles, ternately decompound ; leaflets rounded, crenatclv and 

 obtusely lobed, glaucous beneath ; peduncles as long as the leaves ; carpels oblong, sessile, 

 strongly ribbed, twice the length of the slender curved style. — rursh, Jl. 2. p. 388; DC. 

 prodr. \.p. 12; Hook.Jl. Bor.-Am. 1. p. 3; Darlingt.fl. Cest. p. 333; Ton: ^ Gr.JI. N. 

 Am. \.p. 39. T. lasvigatum, Michx.Jl. I. p. 322. 



Stem 1-2 feet high, slender, somewhat branched, with sheathing stipules at the base. 

 Common petiole 1-3 inches long ; leaflets about three-fourths of an inch in diameter, more 

 or less distinctly 3-lobcd, the lobes crenately toothed. Sepals 4-5, oval, obtuse, often pur- 

 plish. Filaments much longer than the sepals, weak, almost capillary and nearly of the 

 Game thickness throughout ; anthers yellowish. Fertile flowers with 6-8 stamens. Pistils 

 6 - 10 ; the styles (including the stigmatic portion) longer than the ovary ; the persistent base, 

 in maturity, shorter than the carpel : stigmas linear, elongated. 



Common in woods, particularly in rich soil among rocks. Fl. April - May. Fr. June, 



2. Thalictrum Cornuti, Linn. Common Meadow Rue. 



Dioecious or polygamous; filaments somewhat clavate ; anthers oblong, obtuse; leaves 

 sessile (the petiole divided to the base), ternately decompountl ; leaflets roundish-obovate or 

 elliptical, 3-lobed, with the lobes rather acute, glaucous or somewhat pubescent beneath ; pe- 

 duncles longer than the leaves ; carpels nearly sessile, acute at each end, strongly ribbed, twice 

 as long as the style ; stigma linear-oblong. — Linn. sp. p. 7G8 ; Pursh, Jl. 2. p. 338 ; Hook. 



