KNTAHDRIA, DKiYMA. 147 



Resembles Sm\ rnium trifoliatum in habit and foliage ; 

 ind it has been supposed heretofore bo be a mere rarieti of 

 it. The flowers are, in the plant under cons'uU ration, dark 

 purple On the high rocks bordering the Schuylkill, east side, 



mar the falls; and in fields with Snn rnium trifoliatum ; not 

 uncommon. Perennial. June. 



:. T. lower leaves subtriternate, upper bitemats ; ■ ■i ia ai i i 

 leaflets cuneate-ovate, acute or acuminate, un- 

 equally and incisely serrate, entire towards the 

 bast* : nmbelfl dichotomal and terminal ; invo- 

 lacell subulate, unilateral, 3-leavedj fruit ellip- 

 tic, 7 of the ridges alternately broader. Root 

 perennial. Stein three feet high, dtchotomOUS, 

 angular, and grooved, smooth, excepting a mi- 

 nute pubescence at the nodes, common in this 

 and other genera. Leaves smooth, floral ones 

 Bubopposite, all upon longish petioles, a little 

 scabrous and whitish on the margin, serratures 

 deep, large, unequal, and acute, commenting 

 usually a little below the middle of the leaflet 

 (leaflets 10 to 15 lines long.) Peduncles of the 

 umbels rather short. Involucrum none. Um- 

 htllets about 20-flowcred, more than half of 

 them abortive. Calix distinct, 5-toothctl. Pe- 

 tals deep yellow, acuminate, obliquely involute. 

 St\ les persistent, filiform, erect, about twice the 

 length of the petals, with distinct but small stig- 

 ma. Fruit nearly as huge as that of the par- 

 nip, elliptic in the outline. Seeds elliptic, con- 

 vex, one of them with 2 broader alated lateral 

 ridges, and the other with one dorsal alated 

 ridge, margins alated, comment, intervening 

 elevations much lower, Seetls aromatic, and 

 highly camphorated. — A'ntt. 



Ligusticum? barbinode, Mich. 

 IJ rnium bai'oinode, Muhl. 



feet high. Joints of the stem bearded. Flower^ 

 the high rocky hanks of the Wiaaahickon, and 

 lne 3 - of the Schuylkill, near the fills ; not common 



' M»y,June. 



