LiGUSTicuM. LXVII. UMBELLlFERiE. 289 



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

 herbs. Umbels perfect. Itivol. few-leaved. Inrolucel many-leaved. 



P. SATIVUM. Hon'm. (Apiuin Pctrosclinuin. Willd.) Parsley. — Lis. decovd- 

 pound, .segments ol" the lower ones cuneate-ovate, terminal one.s trilid, all in- 

 cised, caiiline .segments lance-linear, subentire; i7ivolv/:eb of 3 — 5 subulate 

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

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

 Cultivation hasproduced several varieties. Esteemed as a pot-herb, lor .soups, &c.:^ 



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 loilhout an involucre. Involucels 3-leaved, lateral. 



1. T. coRDATUM. Nutt. (Smymium cordatum. M.c. Zizia cordatum, Dc.) 

 Radical lis. simple, cordate, crenate, caidlncuaes ternate, stalked ; segments 

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

 Stem erect, slightly branched, smooth, 2— 31' 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. 



p. alropurpurcum. (Thapsia trifoliata. Linn.) Fls. dark purple. — N. J., Penn. 

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

 St. pube.«cent at the nodes ; loicerhs. triternately divided, ^^^^^rrbiternately, 

 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 I — \\'. Rays about 2' long, each about 20-flowered. 

 Petals deep yellow. Jn. 



16. iETHUSA. 



G-r. aidoi, 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 vittaj, 

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

 Fls. ivhite. 



M. CYNAPIUM. FooVs Parsley. 



Ijvs. hi- 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. 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 vittoc. — % Lvs. ternately 

 divided. Involucels many-leaved. Fls. ivhile. 



1. L. ScoTicuM. Sea Lovai^c. 



Slcm lvs. biternate, the 7tpper ones ternate ; lateral Ifts. oblique, the terminal 

 one rhomboid ; bra£ts of the involucres niunerous, linear. — Sea coast. Root thick, 



