OttDEE 63.— UMBELUFER^. 383 



/3. ATROPUEPUEBUM. Fla. dark purple. — ^N. T. to Tenn. (Thapsia trifoliata L.) 

 y. APTBRUM Gray. Fr. with prominent sharp ribs, scarcely winged (Zisia 

 OOTdata Koch). 



3 T. barbiaoSe Nutt. St. pubescent at the nodes; lower Ivs. triternate, upper 

 bitemate, segm. cuneate-ovate, acute or acuminate, unequally and inoisely ser- 

 rate, entire towards the base ; umbels terminal and opposite the leaves ; fr. ellip- 

 tical, large (3" long), 6-winged. — River banks, Can. and XJ. S. St. 2 to 3f high, 

 angular and grooved, branching above. Lv3. smooth, upper ones sub-opposite ; 

 segm. 1 to 2' by J to IJ'- Bays about 2' long, each about 20 flowered. Petals 

 deep yellow. Jn. 



4 T. pinnatifidum Gray. St. rough puberulent above; Ivs. thrice temate, the 

 upper biternate and ternate, If Is. pinnatifid with linear or oblong segm. ; fr. oblonji, 

 narrowly 8-winged, small (2" long). — Barrens, Ky. to E. Tenn. and W. Gar. (Zizi^ 

 pinnatifida Buckley). 



16. ZIZ'IA, Kocli. Golden Albxakdbrs. (Dedicated to /. B. Ziz, 

 a Rhenish botanist.) Calyx margin obsolete ; petals carinate, apex 

 acnminate, inflexed ; fr. oval, contracted at the commissure and didy- 

 mous ; carpels with 5 slightly prominent ribs ; intervals with 3 vitta;, 

 commissure with 4 ; carpophore 2-parted ; seeds terete or 6-angled. — 

 2f Smooth, erect, glaucous. Lvs. bi or tri-ternate, Ifts. entire. Umbels 

 perfect, with no involucre or involucels. Fls. yellow. 



Z integ^rrima DC. Rooky woods, etc. Mich., N. T., to Ga. Plant 1 to 2f or more 

 high, readily recognized by its entire leaflets, which are oblong and ovate, 1' or 

 more in length, petiolate. Rays of the umbel very slender, 2 to 3' long, about 

 13 in number, with minute involucels or none. May — JL 



17. SCAN'DIX, L. Venus' Comb. (Gr. aiieu, to prick; on account 

 of its sharp seeds :) Calyx limb obsolete ; petals obovate and oblong, 

 undivided, more or less unequal ; fruit laterally compressed or nearly 

 terete, attenuated into a beak which is longer than the seed ; carpels 

 with 5 obtuse, equal ribs, vitta; 0, or scarcely any. — 2) or @ Lvs. finely 

 dissected. Invol. 0. Involuoel 5 to 7-leaved. Fls. white. 



S. apiculata Willd. Slender, with slender branches and long petioles on inflated 

 sheaths ; the pinna; 3 or 4 remote pairs diohotomously decompound ; ultimate 

 segm. acute ; umbels about 3-rayed ; bracts of the involucel lanoe-ovate, 2, or 3- 

 cuspidate ; pet. oblong ; fr. beak long, slender, forked at apex with the sty. — A 

 curious plant found near Savannah (Feay), much resembling the S. pecten of 

 Europe. Sts. 12 to IS' high. Fr. 9" long. 



18. OSMORHrZA, Raf. Sweet Cicely. (Gr. (5(7/Lt//, perfume, pi^a, 

 root ; from the anisate, aromatic root.) Calyx margin obsolete ; petals 

 oblong, nearly entire, the cuspidate point inflexed ; styles conical at 

 base ; fruit linear, very long, clavate, attenuate at base ; carpels with 5 

 equal, acute, bristly ribs ; intervals without vitta3 ; commissure with a 

 deep, bristly channel. — ?4 Lvs. biternately divided, with the umbcl.s 

 opposite. Invol. few-leaved ; involucels 4 to 7-leaved. Fls. white. 



1 O. longfstylis DO. Sty. filiform, nearly as long as the ovary; fr. clavate. — 

 Woods, Can. to Va., 1 to 3f high, with inconspicuous umbels of white flowers. 

 Rt. branching, fleshy, of an agreeable, spicy flavor. St. erect, branching above, 

 nearly smooth. Lvs. many, decompound, the ultimate divisions ofl^en pinnate ; 

 Ifts. irregularly divided, the lobes broadly ovate, slightly pubescent. Involucres 

 of linear bracts longer than the rays. Fr. blackish, an inch in length, crowned 

 with the slender persistent styles. May, Jn. (Fig. 207.) 



2 O. brevfstylis DO. Sty. conical, scarcely as long as the breadth of the ovary ; 

 fr. somewhat tapering at the summit. — Commoi^iu woods, Can. to Penn. W. to 

 Or. Aspect similar to that of the preceding, but the root is destitute of the anise- 

 hke flavor of that species, being disagreeable to tbe taste. The plant is more 



