UMBELLIFERJE, (PARSLEY FAMILY.) 163 
13. ZIZIA, DC. 
Calyx-teeth obsolete. Fruit ovoid-oblong, twin. Carpels 5-ribbed, the cross 
section nearly orbicular. Vittæ 3 iu each interval, and 4 on the commissure, — 
A smooth perennial herb, with 2-3-ternately compound leaves, and yellow 
flowers. 
l. Z. integerrima, DC. Stem slender; leaflets oblong-ovate, entire ; 
rays of the umbel long and slender; involucre none. (Smyrnium integerrimum, 
L.)— Rocky woods, Mississippi, and northward. May and June. — Stem 1? - 
2° high. 
14. THASPIUM, Nutt. 
Calyx-teeth short or obsolete. Fruit ovoid or oblong, somewhat flattish at the 
sides. Carpels commonly equally and strongly 5-ribbed. Intervals with single 
vittze. — Perennial herbs, with 1 — 2-ternately-divided leaves (the lowest often en- 
tire), and yellow or purple flowers. Involucre none. 
* Calyz-teeth short, obtuse. 
l. T. barbinode, Nutt. Stem pubescent at the joints; leaves 1 — 2-ternate, 
more or less pubescent ; leaflets’ cuneate-ovate, entire toward the base, toothed 
above, the terminal one narrowed into a long stalk ; fruit oblong, the ribs mostly 
unequal; flowers pale yellow. — River-banks, West Florida, and northward. 
May and June. — Stem branching above, 29—39 high. Leaflets p 1’ long, 
often 2 — 3-lobed. 
2. T, pinnatifidum, Gray. Sandi and umbels Fouk paberist 
leaves 1—3-ternate; leaflets 1—9-pinnatifid, the lobes linear or oblong; fruit 
oblong, narrowly 8- 10-winged, the intervals minutely scabrous. — Mountains of 
North Carolina and Tennessee. — Stem 29 - 59 high. 
* * Calyz-teeth obsolete. 
3. T. aureum, Nutt. Leaves 1-2-ternate; the leaflets oblong-lanceolate, 
sharply serrate, the lateral ones unequal at the base; fruit oval, the ribs thick 
or winged. (Smyrnium aureum, Z.) — Rich soil, Florida, and northward. 
May. — Stem 19-29 high. Lowest leaves sometimes cordate and undivided. 
Flowers yellow. 
4. T. trifoliatum, Gray. Leaves crenate; the lowest ones usually sim- 
ple and cordate, the others trifoliolate; leaflets ovate-lanceolate, mostly obtuse 
" the base; fruit roundish, ribbed or winged. (Smyrnium cordatum, Walt. 
S. atropurpureum, Lam.) — Rich soil, Florida to Mississippi, and northward. 
June. — Stem 19 - 2° high. Flowers yellow or dark purple. 
$ 15. ates oy L. Noxvo. 
