534 UMBELLIFERAE. [Vor II. 
3. Apium leptophyllum (DC.) F. Muell. 
Fine-leaved Marsh Parsley. (Fig. 2689.) 
Sison Ammi LL. Sp. Pl. 252. 1753? 
Heliosciadium leptophylium DC. Prodr. 4: 105. 1830. 
Apium leplophyllum F,. Muell. Benth. Fl. Austral. 3: 
SAO iaiatied istess in Mart. Fl. Bras. 11: Part 1, 341. 1879. 
Erect or diffuse, slender, much branched, 3/-24’ 
high. Leaves ternately pinnatisect, the lower 
slender-petioled, the uppermost nearly sessile, the 
ultimate segments narrow, often incised; umbels 
%4/-14’ broad, sessile, or peduncled, opposite the 
leaves; flowers white; fruit ovate, glabrous, about 
1’ long, the ribs equal and prominent. 
In moist grounds, New Jersey; ‘‘St. Louis, Mo.” 
(Nuttall). Common in the southern States. Widely 
distributed in tropical America and the Old World. 
June-Aug. 
34. ZIZIA Koch. Nov. Act. Caes. Leop. Acad. 12: 129. 1825. 
Perennial mostly glabrous herbs, with ternate or ternately compound leaves, or the basal 
ones undivided as in 7haspium, and compound umbels of yellow flowers, the central fruit of 
each umbellet sessile. Involucre none; involucels of several small bracts. Calyx-teeth 
prominent. Stylopodium none, Styleselongated. Fruit ovoid, or oblong, glabrous, or nearly 
so, somewhat compressed, the ribs filiform, not winged ; oil-tubes solitary in the intervals, 
with asmall one under each rib. Seed-face flat. [In honor of I. B. Ziz, a Rhenish botanist. ] 
‘Three species, mainly distinguished from the 7haspia by their wingless fruit. 
Basal leaves 2-3-ternately compound. 
Rays of the umbel numerous, stout; fruit 2'’ long. 1. Z. aurea. 
Rays of the umbel 2-12, slender; fruit about 1’’ long. 2. Z. Bebbii. 
Basal leaves cordate, undivided; fruit about 134"’ long. 3. Z. cordata. 
1, Zizia aurea(L.) Koch. Early or 
Golden Meadow-Parsnip. (Fig. 2690.) 
Smyrnium aureum I,. Sp. Pl. 262. 1753. 
Z. aurea Koch, Nov. Act.Caes. Leop. 12:129. 1825. 
Thaspium aureum var. aplerum A, Gray, Man. 
Ed. 2, 156. 1856. 
Erect, glabrous, branched, 1°-234° high. 
Basal and lower leaves long-petioled, 2-3-ter- 
nately compound, the segments ovate, or 
ovate-lanceolate, acute, or obtusish at the 
apex, I/-2’ long, sharply serrate; upper 
leaves shorter-petioled, ternate; rays of the 
umbels 9-25, stout, ascending, 1’-2’ long; 
fruit oblong, nearly 2’/ long, about 14’’ wide. 
In fields, meadows, and swamps, New Bruns- 
wick to Ontario, South Dakota, Florida and 
Texas. April-June. 
2. Zizia Bébbii (Coult. & Rose) Brit- 
ton. Bebb’s Zizia. (Fig. 2691.) 
Zizia aurea var. Bebbii Coult. & Rose, Bot. Gaz. 
12: 138. 1887. 
Zizia Bebbii Britton, Mem, Torr. Club, 2: 35. 1890. 
Slender, ascending, simple or branched, 1°- 
2° high. Basal and lower leaves slender-pet- 
ioled, 2-3-ternate, the segments ovate, oblong, 
or oval, mostly obtuse, %/-1’ long, sharply 
serrate; stem-leavesternate, or biternate, short- 
petioled, orsessile, their segments lanceolate, 
generally narrower than those of the preced- 
ing species; rays of the umbel 2-12, slender, 
divergent, 1/-3’ long; fruit oval, or broader 
than long, about 1/’’ long, often 11/’’ wide. 
_In mountain woods, Virginia and West Vir- 
ginia to North Carolina and Georgia. May. 
