G RANUNCULACE^. (CROWFOOT FAMILY.) 



* Floxoers perfect : sepals longer than the stamens : stigma short : achenia raised 

 on a stipe, inflated, veiny : leaves ternate or biternale, alternate : flowers few, 

 panided. 



4. T. clavatum, DC. Stems slender, sparingly branched, naked below ; 

 leaves petioled, biternate ; leaflets thin, rounded, crenately lobed, glaucous be- 

 neath; panicle corymbose, few - many-flowered ; flowers small, white ; adicnia 

 5 - 10, somewhat crescent-shaped, short-pointed, long-stalked. — Mountains of 

 North Carolina to Alabama. July. — Stems l°-2° high. 



5. T. nudicaule, Schweinitz. Stem slender, naked below, sparingly 

 branched above ; radical leaf solitary, long-petioled, biternate ; stem-leaves very 

 small, ternate ; leaflets thin, roundish, obtusely lobed, slightly cordate ; panicle 

 4-8-flowered ; flowers minute, greenish ; ovaries shortstalked. — Banks of the 

 Yadkin Kivcr, North Carolina. — Stem 2° high. ( *) 



* * * Plowers perfect: sepals longer than Hie stamens : stigma depressed,- achenia 

 sessile, ribbed: stem-leaves whorled : flowers umbelled. 



6. T. auemonoides, Michx. . Radical leaves biternate, long-petioled ; 

 leaflets oval or roundish, cordate, 3 - 5-lobed ; stem-leaves 2-3, sessile, ternate ; 

 the long-stalked leaflets forming an involucre apparently of 6 - 9 simple leaves ; 

 umbel 3-6-flowered; sepals 6-10, white. — Woods, Florida to Mississippi, 

 and northward. April and May. — Root tuberous. Stems 6' - 10' high. Flow- 

 ers J'- 1' in diameter. 



6. TKAUTVETTERIA, Fisch. & Hoy. 



Sepals 3 - 5, orbicular, imbricated in the bud, colored, caducous. Petals none. 

 Stamens indefinite ; filaments clavate. Ovaries numerous, 1-ovuled. Stigma 

 recurved. Achenia capitate, gibbous, 4-sidod, beaked by the hooked persistent 

 stigma. Seed erect. — Erect, perennial herbs, with alternate, palmately-lobed 

 leaves, and corymbose flowers. 



1. T. palmata, Fisch. & Mey. Smooth; stem (2° -4° high) simple or 

 sparingly branched above ; leaves uniform, reticulate, divided into 5-9 lanceo- 

 late, toothed and serrate lobes ; those of the root broad (4' -6'), long-petioled ; 

 corymb many-flowered. — Margins of mountain streams, Georgia, Tennessee, 

 and northward. 



7. MYOSUBUS, L. Mocse-tail. 



Sepals 5-7, imbricated in the bud, spurred at the base. Petals 5-7, linear- 

 spatulate. Stamens 5 - 20 : filaments filiform. Ovaries numerous, I-ovuled. 

 Style subulate. Achenia 3-angled, imbricated on the filiform, elongated recep- 

 tacle. Seed suspended. — Small annuals, with linear radical leaves, and small, 

 solitary, yellowish flowers, on a naked scape. 



I. M. minimus, L, Scapes 2' -6' long, longer than the leaves ; achenia 

 beakless. — Augusta, Georgia (Elliott), and westward. April. — Fruiting-spiko 

 linear, r-2' long. 



