024 RANUNCULACEAE 
Flowers perfect: filaments petal-like: carpels long-stipitate. I. CLAVATA. 
Flowers dioecious or polygamous : filaments not petal-like: carpels 
Short-stipitate or sessile. II. Dioica. 
I. CLA 
Wo curved along the upper edge, the en oe than 
t tipe. 
d straight along the upper side, the body shorter than 
ipe 
. clavatum. 
"3 
. mirabile. 
II. DioicA 
Filaments subulate or filiform 
owers dioecious: leafle ts not wazy: -granular beneath. 
Achenes distinctly stipitate. 
Achene-body oval: anther 3-4 mm. long: sepals 
of the staminate flowers 2.5-3.5 mm. long. 3. T. coriaceum. 
Achene-body ellipsoid: anther 5-6 mm. long: 
io of the staminate flowers 4.5-5.5 mm. 
4. T. caulophylloides. 
Ae Sio stipitate. 
Stem pe n stamens less than 18. 5. T. debile. 
Stem erect: stamens more than 6. T. dioicum. 
Flowers DOE d nousc leaflets waxy- granular beneath. T. T. revolutum. 
Filaments spatulate, often npn than the anthers. 
Leaflets entire or nearly : flowers nearly dioecious: 
achene-body 3—4 mm. onm 8. T. macrostylum. 
uk civi Te flowers polygamous: achene- 
Achene sessile or uos So: leaflets green beneath. 9. T. polygamum. 
Achene stipitate: leaflets glaucous beneath. 10. T. perelegans. 
1. T. clavatum DC. Plant 1.5-6 dm. tall: blades of the leaflets thin, 1.5-3 c 
long, prominently lobed: achene scimitar-shaped, about 7 mm. long, the Nine 
dud ben s us body.— (MOUNTAIN 
E.)—A bout Cun. 
Blue Ridge, ‘and ad. adj. provinces, Ga. to Ala. 
W. Va., and Va.—Spr.-sum. 
mirabile Small. Plant 1-3 dm. tall: 
blades of the leaflets very thin, 2-3 E long, 
shallowly lobed: achene clavate, about 7 mm. 
long, the stipe pns r than the Eres body. 
— Sandstone bluffs, Little Mt. in the Appa- 
lachian Plateau, Ala. —Spr. 
3. T. coriaceum (Britton) Small. Plant 9— 
16 a ae all: p ng of the leaflets thickish, 
the nal 2.5-4 cm. wide: carpe el 
stipifetor ee -body 3-4 mm. lon ng.— 
( MAID-OF-THE- per on ~ Ridge and Appalachian provinces, N. C. 
to Tenn., Ky., and Va.—Spr.— 
4. T. caulophylloides ipu: Es 6—18 dm. tall: blades of the pn 
thickish, the peri ones 4— wide: carpels ped a 4-6 m 
lon —Open oods, Blue Ridge and Appalachian pro E d ino 
Piedmont ER river valleys, Tenn. to Ky. and Md. D 
5. T. debile Buckl. Plant 1-4. : dm. tall: blades of the leaflets 6—15 mm. wide, 
gee rounded or subcordate at the base: style slender, fully twice as long as 
the ovary: achene-body slen dor ribbed, with a long and very slender beak.— 
Rich woods, Coastal Plain and adj. provinces, “Ga. to Ark.—Spr. 
6. T. dioicum L. Plant 3-6 dm. pn Arar leaves n long po blades 
of the leaflets nis y terminal o 5-3 cm. wide, lobed: carpel sessile: 
ox eel 3—4 a abruptly “healed, spore ribbed —( EARLY MEADOW- 
PRING cod E.)—Rocky hillsi des an woods, various provinces, in 
Coastal Plain only N, Ga, to Mo., Sask., and Lab. —Spr. 
