LiGUSTicuM. LXVII. UMBELLlFERiE. 289 



with single vittce, commissure with 2 ; carpophore 2-parted. — Eurapean 

 herbs. Umbels perfect. In col. few-leaved. Lvvolucel viany-leaved. 



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

 pound, segments of the lower ones cuneate-ovate, terminal ones trilkl, all in- 

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

 bracts. — @ From Sardinia and Greece. Stem 2 — if high, branched. Leaves 

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

 Cultivation has produced several varieties. Esteemed as a 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 vittte, commissure with 2. — % 

 Umbels lollhout an hivolucre. Involucels o-leavcd, lateral. 



1. T. coRDATUM. Nutt. (Smj'rnium cordatum. Mc. Zizia cordatum. Dc.) 

 Radical lvs. simple, cordate, crenate, c«!'Zi?fe«nei- ternale, stalked; scgvients 

 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, Ju. 

 0. atropurpurcum. (Thapsia trifoliata. Linn.) Fls. dark purple. — N. J., Penn. 

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

 St. pubescent at the nodes ; lower lvs. triternately divided, w^/^er 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— U'. Rays about 2' long, each about 20-flowered. 

 Petals deep yellow. Jn. 



16. ^THtJSA. 



Gr. aido), 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 vittse, 

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

 Fls. white. 



.Ei. cYNAPiuM. Fool's Parslet/. 



Jjvs. bi- or tripinnately divided, segments cuneate, obtuse ; involucels 3- 

 leaved, pendulous, longer than the partiat umbels.— In waste grounds, Ms., rare. 

 Stem about 2f high, green, striate. Leaves with numerous, narrow, wedge- 

 shaped segments, unilbrm, 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 Ligvria ; hence the name. 



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

 an inflexed point ffruit 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 Lavage. 



Stem lvs. biternate, the iipper ones ternate ; lateral If Is. oblique, the terminal 

 tine rhomboid ; l»-acts of the involucres numerous, linear. — Sea coast. Root thick, 



