Thalictrum. 1. RANlfNCULACE^. 147 



Leaves 2 or 3-tcrnate, witli ovate-lanceolate leaflets, variously lobed and cut. 

 Petioles 4 — 1' lonj^, smooth, and sli<,'htly glaucous, like the whole plant. 

 Flowers 20 — 40, in a short dense raceme. Berries bright red, on .slender pedi- 

 cels. May. 



2. A. ALBA. Bw. (A. Americana. /?. alba. Ph.) JVJiile Bane-berry. 



Lvs. twice and thrice ternate ; roc. oblong ; pc(. truncate ; pedicels of the fruit 

 thicker than the peduncles; /jerries while. — Grows in rocky woods, common, 

 Can. to Ga., much like the last in foliage. Plant IJ — 2f. high, bearing 2 com- 

 pound leaves and a cluster of tiowers. Leaflets 1 — 2' long, h as wide, acumi- 

 nate. Raceme 1 — 3' long, IJ' thick, the pedicels f long, at length purple, and 

 about as thick as the purple peduncles, — characters which, as well as the milk- 

 white fruit, readily distinguish this species i'rom the last. May. 

 15. CIMICIFtJGA. 



Lat. cimex, a hug, fugo, to drive away ; alluding to its offensive odor. 



Sepals 4 — 5 ; petals 3-^-8, sometimes wanting ; stamens 00, 

 anthers introrse ; follicles 1 — 8, oblong, many-seeded. — % Lvs. tcr- 

 7iately divided. Fls. white., in long slender racemes. 



1. C. RACFMosA. Ell. (Actcea. L«7;i?i. Macrotys. i?^/.) Blaclc Snake-rout. 

 Lvs. ternately decompound ; Ifts. ovate-oblong, inci.sely serrate ; rac. very 



long; pet. 2, forked, slender; stij. 1 ; capsule follicular, dry, dehiscent, ovate. — 

 A tall, leafy plant, with the aspect of an Actcea, found in upland woods. Stem 

 4 — 8 f. high, with long, panicled racemes of white sepaled and monogynous 

 flowers. Petals 4 — 6, small. Stamens about 100 to each flower, giving the 

 raceme the appearance ol a long and slender plume. Flowers very fetid. 

 Jn. Jl. 



2. C. Americana. Michx. (C. podocarpa. J5JZZ. Actaea podocarpa. Z>C.) 

 Glabrous ; lvs. triternate, segments ovate, terminal one cuneiform at base, 



3-parted or 3-cleft and incised ; ^;ef. concave, sessile, 2-lobed, nectariferous at 

 base ; ova. 2 — 5, stiped, obovate and pod-shaped in fruit ; sds. flat, scaly. — 

 Woods, Penn. to N. Car. Stem 3— Gf high. Leaflets 2 — 4' long, with coarse, 

 unequal, mucronate serratures. Flowers smaller than in C. racemosa, in a 

 long panicle of racemes. Follicles abruptly beaked, G — 8-seeded. 



16. TRAUTVETTERIA. Fisch. and Meyer. 



Named in honor of Trautvetter, a German botanist. 



Sepals 4 — 5 ; petals ; stamens 00, petaloid ; anthers introrse ; 

 carpels 15 — 20, membranaceous and indehiscent, 3-carinate, 1-seeded, 

 tipped with the short, hooked style. — % Lvs. 'palmatcly lobed. 

 T. palmata. Fisch. and Meyer. (Cimicifuga. Hook.) 

 St. slender, terete, smooth, branclied above ; lvs. few, rugose and reticulate- 

 veined, palmately 5 — 9-lobed, upper ones sessile, lower on long petioles, lobes 

 lanceolate, acute, incisely serrate ; fls. cymose. — Prairies, la. S. to Tenn. Plant 

 2 — 5f high. Radical leaves 4—6' wide, 3 — 5' long, the petioles twice as long. 

 Stem leaves 2 — 4, remote. Flowers many. Sepals orbicular, concave, cadu- 

 cous, white. Stamens conspicuous, white. Jl. Aug. 



17. THALICTRUM. 



Said to be from -SaXXw, to be green. 



Calyx colored, of 4 — 5 roundish, concave, deciduous sepals ; 

 corolla ; filaments 00, compressed, dilated upwards, longer than 

 the calyx; ovaries numerous (4 — 15), with sessile stigmas; achenia 

 awnless, ovoid. — % Lvs. ternately divided. Fls. often 9 J^. 



1. T. DioicuM. Early Mcadoio Rue. 



Very smooth ; lvs. decompound ; Ifls. roundish, with obtuse lobes ; filaments 



filiform; jls. 9 J^.— Herb 1— 2f high, meadows and woods, Briti.sh Am. to 



Car. Stem striate, jointed. Leaflets paler beneath, with 5—7 roimded lobes 



or teeth. Flowers in long-stalked panicles. Sepals 5, obtuse, purplish. The 



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