POLYANDRIA, POLYGYNIA. 21 
1. T. smooth; leaves supra-decompound, folioles dicieum, 
subrotund, cordate, obtuse-lobate, glaucous be- 
neath, smooth ; panicles axillary, filiform, shor- 
ter than the leaf; flowers small, in few-flowered 
umbels.—¥Filld. and Pursh. 
T. levigatum, Mich. 
Dioicous Meadow-rue. 
The smallest species of the genus growing about this neigh- 
bourhood. Flowers twelve to fourteen inches high. On the 
rocks on the Wissahickon, and on those in the woods above 
the falls of Schuylkill, west side. Rare. Perennial. April, May. 
2. I’. stem striate, leaves supra-decompound, fo- rugosum. 
lioles ovate, lanceolate and rugose, veined, ob- 
tuse-lobate, panicles large, terminal.—/Villd. 
and Pursh. 
Rough-leaved Meadow-rue 
“A very tall species, frequently attaining a height of five or 
even six feet. Flowers white. In watery thickets, and the 
magins of shrubbery, borders swamps and rivulets, not un- 
common. Perennial. June, August. 
8. T. delicately tomentose-pubescent; leaves su- pubescens, 
pra-decompound ; folioles ovate, subcordate and 
cuneate, 3-lobed at the apex, subrugose above, 
sub-tomentose beneath, panicles terminal, pedi- 
cels sub-umbellate-divaricate; flowers polyga- 
mous.—Pursh. 
T. pubescens, Pursh. 
T. polygamum, Muhl. 
Polygamous Meadow-rue 
Also a very tall species, very much resembling No. 2, and 
found growing in similar places, as well as in low wet mea- 
dows. More common than No. 2. Flowers also white. 
4. T. stem twice as tall as the leaves; leaves com- purpuras 
pound ; folioles subrotund, trifid, incised ; pani- 
3* 

