RANLNCULACE^. (CROAVFOOT FAMILY.) 5 



3. A. Virginiana, L. (Virginia Axemone.) Stem haiiy or woolly, 

 at lengtli niany-Howoreil ; peduncles elongated, the earliest one simple ; lateral 

 ones several times forking, and bearing a 2-lcavcd involucre and a single flower 

 at each joint ; proper involucrc 3-leaved, the leaves long-pctioled, 3-parted, with 

 ovate or oblong lobed and toothed divisions ; sepals 5, oval, greenish, acute ; 

 achenia numerous, in an oblong head, woolly. — Open woods in tlic ujjper dis- 

 tricts, and northward. July - September. — Plant 2° - 3° high. Flower 8"- 9" 

 in diameter. Radical leaves 3-4, similar to the involuci'C. 



4. HEPATICA, Dill. Liver-leaf. 



Flowers and fruit as Anemone. Involucrc clo>e to the flower, 3-lcavcd, resem- 

 bling a caly.x ; its leaves sessile, ovate, entire. — Alow, perennial herb, with 

 scape-like, 1-llowercd stems, and 3-lobcd, long-pctioled, cordate, persistent, radi- 

 cal leaves. 



1. H. triloba, Chaix. Lobes of the leaves rounded, entire ; i^tems hairy ; 

 flowers purplish or white ; achenia oblong, hairy. — Shady woods, Florida and 

 northward. February - March. — Stems 3' - 6' high. 



5. THALICTRUM, Tourn. Meadow-Rue. 



Sepals 4 -10, imbricated in the bud, colored, spreading, deciduous. Petals 

 none. Stamens numerous. Filaments filiform, clavatc or flattened. Ovaries 

 3-15, l-ovu!ed. Achenia sessile or stalked, furrowed or inflated, pointed by the 

 sessile persistent stigma or short style. Seed suspended. — Perennial herbs. 

 Leaves compound. 



* Flowers fioljgamous or diuccious : sepals shorter than the stamens : sfifjina elon- 

 gated : achenia nearly sessile, ribbed: leaves alternate, decompound: involucre 

 none : flowers small, panicled. 



1. T. dioicum, L. Stems erect; leaves long-petioled ; leaflets thin, 

 roundish, crenately 5 - 7-lobcd, smooth ; flowers numerous ; sepals greenish ; 

 stamens and stigma filiform ; achenia sessile, or (in var. stipitatum, Torr.^ 

 Gray) distinctly stalked. (T. rugosum & T. Carolinianum, DC.) — IMountaius 

 of North Carolina and northward. July -August. — Stem 1°- H° high. 



2. T. debile, Buckl. Stems low (8'- 12'), procumbent or ascending, much 

 branched ; leaves long-petioled; leaflets small.stalkcd, rounded, crenately lobed, 

 smooth , flowers few on axillaiy or terminal peduncles ; achenia oblong, strongly 

 ribbed, short-stalked, as long as the slender style. — Rich woods, near Allenton, 

 Wilcox County, Alabama {Buckley). March and April. — Stems branching at 

 the base, slender. 



3. T. Cornuti, L. Radicallcavcs long petiolcd ; stem-leaves sessile (the 

 common petiole wanting) ; leaflets thick, oval or oi)long, 3-lobed or entire, often 

 cordate, smooth, or pulicscent beneath ; sepals white ; stamens and stigma sli.nhtly 

 clavate ; achenia short-stalked. (T. revolutum, Z^C.) — Meadows and woods, 

 Florida and northward. June- August. — Stems 3° -4° high. Radical leaves 

 very large. Leaflets vaiying greatly iu size. 



1* 



