LIGUSTICUM. LXVII. UMBELLIFER2E. 289 



with single vittae, commissure with 2 ; carpophore 2-parted. European 

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



P. SATlvuM. Hoffm. (Apium Petroselinum. Willd.') Parsley. Lvs. 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. (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.J 



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 vittae, commissure with 2. Q 

 Umbels without a'd involucre. Involucels 3-leaved, lateral. 



I. T. CORDATUM. Nutt. (Smyrnium cordatum. Me. Ziziacordatum. DC.) 

 Radical Ivs. simple, cordate, crenate, cauline ones 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 trifoliata. Linn.) Fls. dark purple. N. J., Perm. 

 3. T. BARBINODE. Nutt. (Ligusticum barbinode Michx.} 

 St. pubescent at the nodes ; lower Ivs. triternately divided, upper biternately, 

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

 entire towards the base ; umbels 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 If. Rays about 2' long, each about 20-flowered. 

 Petals deep yellow. Jn. 



16. ^THUSA. 



GT. at 00), to bum j 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 vittae, 

 commissure with 2. Poisonous herbs. Invol. 0. Involucels 1-sided. 

 Fls. white. 



J&. CYNAPIUM. Fool's Parsley. 



Lvs. 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 parsley, but is distinctly marked by the involucels, and by its disagree- 

 able odor. It is said to be poisonous. 



17. LIGUSTlCUM. 



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 vittae. ^ Lvs. ternately 

 divided. Involucels many-leaved. Fls. white. 



1. L. SCOTICUM. Sea Lovage. 



Stem Ivs. biternate, the upper ones ternate ; lateral If Is. oblique, the terminal 

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



