6 EANUNCL'LACK-K. (<liO\V Kt lo T FAMILY.) 



5. TRAUTVETTERIA, Fiscl.. i Alcy. 



Sepals .'J-S, orliiciiliir, iiiilnicatcil in tlio hud, cadiicuiis. IN-tals iidiic. 

 Slaiiuiis iinlcliiiiU'. Ovarifs luiintroii.s, 1-ovulod. Aclieniat ii}(ilatc,4-aii;;leil, 

 beakt'd liv tlu' liooked pcitiislciit stvle. St-cd erect. — riTciiiiial licrlw, witli 

 alteriiati' iialinali'lv lol)ed leave**, aud coninhotie white flower.s. 



1. T. palmata, Fisdi. & Mey. stem a° - 4° hi^h ; leaves divided into 

 .5 -9 senate and ttuitlied loljes, the lowest 4 -G' wide, long-petioJed. — 

 Mouutains, ali>o dry pine woods, W. Tloriila. 



6. MYOSURUS, L. Mouse-Tail. 



Sepals 5-7, imhricated, spurred at the hase. Petals 5-7, lincar-spatulate. 

 Stamens 5 - 20. Ovaries numerous, 1-ovuled. Aeiicnia 3-augled, imhrieated 

 on tlie spike-like receptacle. Seed suspended. Small annuals, witji line:ir 

 radical leaves, and a small yellowish flower on a naked scape. 



1. M. minimus, I.^- Scape 2' -6' long, longer than the leaves; aciienia 

 beakles.s. — Angii.-ia, Georgia ; Js:i.shville, Teuncssee. 



7. RANUNCUIiUS, L. Crowfoot, Bltterclp. 



Sepals .3-5, regular, herbaceous, imbricated in the bud, deciduous. Petals 

 3- 10, with a pit or scale at the narrowed base. Stamens mostly numerous. 

 Ovaries few or numerous, 1-ovuled. Achenia capitate, compressed, mostly 

 beaked bv the short persistent style. Seed erect. — Herbs. Leaves alternate, 

 the lowest petioled. Flowers axillary or corymbose, white or yellow. 

 § 1. Petals with a pit at tin- base, iclu'te ; achenia rugose. 



1. R. aquatilis, L. var. trichophyllus, Gray. Aquatic, filiform, 

 immersed; leaves ]jetioled, divideil into very numerous capillary segments; 

 peduncles opposite the leaves. — Slow-flowing streams in the upper districts, 

 Pnrsh. June - August. 



§ 2. Petals )/ellow, u'ith a small scale at the base. 

 * Achevia viuricate ; annuals. {Introduced.) 



2. R. parviflorus, L. Softly villous, much branched, P - 1° high : 

 lower leaves round-cordate, 3-lobed, toothed, the upper 3-parted or entire ; 

 flowers small ; petals 3 - 5, as long as the sepals ; styles recurved. — Roadsides 

 and waste ground. April - ^Nlay. 



3. R. murieatus, L. Nearly glabrous; stem 1°-U° high; petals 5, 

 longer than the sejjals ; styles straight; achenia strongly margined; other- 

 wise like the preceding. — Wa.ste grouud, Charleston (Elliott). April - May. 



* * Achetiia smooth ; chiefli/ perennials.^ 



H- Leaves undivided, denticulate or entire, lanceolate, the lower broader and 



petioled ; flowers small. 



4. R. ambigens, Watson. Stem 10-2° long, ascending, rooting at the 

 lower joints ; flowers 3"- 5'' wide, the petals longer than the calyx ; achenia 

 tumid, slender-beaked. (R. alisma-folius, Grai/.) — Wet banks, chiefly in the 

 upper (li.<tricts. — Leaves 2' - 4' long. 



