LiGcusTICcUM. LXVII. UMBELLIFERZ. 289 
with single vittze, commissure with 2; carpophore 2-parted.—Huropean 
herbs. Umbels perfect. Invol. few-leaved. Involucel many-leaved. 
P. sativum. Hoffm. (Apium Petroselinum. Willd.) Parsley—Lws. decom- 
pound, segments of the lower ones cuneate-ovate, terminal ones trifid, all in- 
cised, cauline segments lance-linear, subentire; involucels of 3—5 subulate 
bracts.—@) From Sardinia and Greece. Stem 2—4f high, branched. Leaves 
smooth and shining, with numerous, narrow segments. Petals white. Jn.— 
Cultivation has produced several varieties. Esteemed asa pot-herb, for soups, &c.t 
15. THASPIUM. Nutt. 
From the Isle of Thaspia, which gave name to the ancient allied genus Thapsia. 
Calyx margin 5-toothed; petals elliptic, with a long, inflexed 
point; fruit elliptical, not compressed laterally; carpels convex, with 
5 winged ribs; intervals with single vittee, commissure with 2.—2 
Umbels without an involucre. Involucels 3-leaved, lateral. 
1. T. cornpAtum. Nutt. (Smyrnium cordatum. Mz. Zizia cordatum. De.) 
Radical lvs. simple, cordate, crenate, cauline ones ternate, stalked; segments 
acute, serrate; wmbels terminal.—Shady hills and barrens, U. S. and Can. 
Stem erect, slightly branched, smooth, 2—8f high. Root leaves on long stalks, 
roundish-heart-shaped, the rest ternate, becoming only 3-parted above, all light 
green. Umbels dense with yellow flowers. Fruit black, oval, with 3 promi- 
nent, paler, winged ridges on each side. May, Jn. 
8. atropwrpureum. (Thapsia trifoliata. Linn.) Fis. dark purple—N.J., Penn. 
3. T. BaRBINODE. Nutt. (Ligusticum barbinode Michz.) 
St. pubescent at the nodes; lower lus. triternately divided, wpper biternately, 
segments cuneate-ovate, acute or acuminate, unequally and incisely serrate, 
entire towards the base; wmbels terminal and opposite the leaves; fr. elliptical, 
the ribs alternately broader.—River banks, Can. and U.S. Stem 2—3f high, 
angular and grooved, branching above. Leaves smooth, upper ones suboppo- 
site; segments 1—2’ by 4—1}/. Rays about 2’ leng, each about 20-flowered. 
Petals deep yellow. Jn. 
16. ATHUSA. 
Gr. at6w, to burn; on account of its poisonous acridity. 
Calyx margin obsolete; petals obcordate, with an inflexed point; 
fruit globose-ovate; carpels with 5 acutely carinated ribs; lateral 
ones marginal, broader; intervals acutely angled, with single vitte, 
commissure with 2.—@ Pozsonous herbs. Invol. 0. Involucels 1-sided. 
F'ls. white. 
#&. cynarium. Fool’s Parsley. 
Iws. bi- or tripinnately divided, segments cuneate, obtuse; znvelucels 3- 
leaved, pendulous, longer than the partial umbels.—In waste grounds, Ms., rare. 
Stem about 2f high, green, striate. Leaves with numerous, narrow, wedge- 
shaped segments, uniform, dark green, flat. Leaflets of the involucels linear, 
long, deflected, and situated on the outside. Jl. Aug.—The plant somewhat re- 
sembles parsley, but is distinctly marked by the involucels, and by its disagree- 
able odor. It is said to be poisonous. 
17. LIGUSTICUM. 
One species was said to be native of Liguria; hence the name. 
Calyx teeth minute or obsolete; petals obovate, emarginate, with 
an inflexed point; fruit nearly terete, or slightly compressed late- 
rally; carpels 5-ribbed, with numerous vittea.—% Lvs. ternately 
divided. Inwolucels many-leaved. F'ls. white. °! 
1. L. Scoricum. Sea Lovage. ¢ 
Stem lus. biternate, the wpper ones ternate; lateral ifts. oblique, the terminal 
one rhomboid ; bracts of the involucres numerous, linear.—Sea coast. Root thick, 
