LiGUSTicuM. LXVII. UMBELLIFER^. 289 



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

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



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

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

 cised, cauline segments lance-linear, subcntire; 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 geniis 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. — % 

 Umbels ivithout an involucre. Involucels o-leaved, lateral. 



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

 Radical lvs. simple, cordate, crenate, cavline 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. 

 /?. atropurp^treum. (Thapsia trifoliata. Linn.) Fls. dark purple. — N. J., Penn. 

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

 St. pubescent at the nodes ; Icncer lvs. 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 i — H'. Rays about 2' long, each about 20-flowered. 

 Petals deep yellow. Jn. 



16. iETHUSA. 



Gr. aiQo), 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 vitta;, 

 commissure with 2. — (D Poisonous herbs. Invol. 0. Involucels \-sidcd. 

 Fls. ivhite. 



M. CYNAPIUM. FouVs Parsley. 



Lvs. bi- or tripinnatcly 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 o{ Lifftiria ; hence the name. 



Calyx teeth minute or obsolete ; petals obovate, cmarginate, with 

 an inflexed point ; fruit nearly terete, or slightly compressed late- 

 rally ; carpels 5-ribbed, with numerous vitta). — % Lvs. ternatdy 

 divided. Involucels many -leaved. I' Is. while. 



1. L. ScoTicuM. Sea Litvage. 



Stem lvs. bitcrnate, the vpperoncs ternate; lateral Ifts. oblique, the terminal 

 one rhomlx)id ; bracts of the involucres numerous, linear.— Sea roast. Root thick, 



