LiGUSTicuji. LXVII. UMBELLIFERtE. 280 



with single vitte, commissure with 2 ; carpophore 2-parted. — European 

 herbs. Umbels perfect. Invol. few-leaved. lavolucel many -leaved. 



P. SATIVUM. Hoffm. (Apium Petroselinum. WiUd.) Parsley. — Lvs. decom- 

 pound, segments of the lower ones cmieate-uvate, terminal ones trifid, all in- 

 cised, cauline segments lance-linear, subentire; involucels of 3—5 subulate 

 bracts.— (g) From Sardinia and Greece. Stem 2 — 4f high, branched. Leaves 

 smooth and shining, with numerous, narrow segments. Petals white. Jn.— 

 C ultivation has produced several varieties. Esteemed as a pot-herb, for soups, &,c.X 



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 vittse, commissure with 2. — % 

 Umbels tvithout an involucre. Involucels o-leavcd, lateral. 



I. T. coRDATUM. Nutt. (Smymium cordatum. Mc. Zizia cordatum. Dc.) 

 Radical lvs. simple, cordate, crenate, <:«(/^;«eo7i(?5 ternate, stalked; segments 

 acute, serrate; umbels terminal. — Shady hills and barrens, U. S. and Can. 

 Stem erect, slightly branched, smooth, 2— 3f 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. 

 /?. atropurpureum,. (Thapsia trilbliata. Linn.) Ms. dark purple. — N. J., Penn. 

 3. T. BARBiNODE. Nutt. (Ligusticum barbinode Michx.) 

 St. pubescent at the nodes ; lower lvs. triternately divided, t/^per biternately, 

 segments cuneate-ovate, acute or acuminate, unequally and incisely serrate, 

 entire towards the base ; uvibels 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 ^— U'. Rays about 2' long, each about 20-flowered. 

 Petals deep yellow. Jn. 



16. ^THtJSA. 



G-r. aidta, to bum; 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 vittas, 

 commissure with 2. — ® Poisonous herbs. Invol. 0. Involucels l-sided. 

 Fls. white. 



M. cYNAPiuM. FooVs Parsley. 



Jjvs.'bi- or tripinnately divided, segments cuneate, obtuse; involucels 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 parsky, 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 oi 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 vittas. — % Lvs. ternately 

 divided. Involucels many -leaved. Fls. white. 



1. L. ScOTicuM. Sea Lavage. 



Stem lvs. biternate, the upper ones ternate ; lateral Ifts. oblique, the terminal 

 one rhomboid ; bracts of the involucres numerous, linear.— Sea coast. Root thick, 



