85 
* Leaves ternately decompound^ voith broad leaflets simply 
toothed or serrate: seedyface plane : eastern sp>ecies (or high north- 
er ff\. 
1. L. actseifolium Michx. FI. i. 166. Stem stout, branched 
above, 2 to 6 feet high, leafy, with glabrous inflorescence: leaves 
large, 3 to 4-ternate ; leaflets broadly oblong, 2 to 5 inches long, 
coarsely serrate: umbel 10 to 20-rayed, v/ith involucels of few 
short bractlets; rays (fruiting) 1 to 2 inches long; pedicels 1 to 2 
lines long: fruit ovate, 2 to 3 lines long, with prominent somewhat 
winged ribs: oil-tubes 3 to 4 in the intervals, 6 on the commissural 
side: seed slightly flattened dorsally, with angled back. (Fig. 88.) 
Rich ground, S. Pennsylvania to Kentucky, and southward to the 
Gulf. FI. July and August. ' 
2. L. Scoticum L. Spec. 250. Stem simple, 1 to 2 feet 
high, somewhat leafy, with glabrous inflorescence: leaves biternate; 
leaflets ovate, 1 to 2 inches long, coarsely toothed: umbel 8 to 15- 
rayed, with involucels of several linear bractlets; rays (fruiting) 
1 to 3 inches long: fruit narrowly oblong, 4 to 5 lines long, with 
prominent somewhat winged ribs: oil-tubes small, 2 or 3 in the 
intervals, 6 on the commissural side: seed flattened dorsally, with 
with round back. (Fig. 89.) 
Salt marshes, along the east and west coasts of British America, and 
extending into New England as far south as Cohasset, Mass. ( Walter Deane)', 
also in Alaska. 
* * I^eaves ter nate-pinnately compound^ with leaflets lacin- 
iately toothed or pinnatifid. 
•j* Rocky Mountain species. 
3. L. scopulorum Gray, Proc. Am. Acad. vii. 347. Stout, 
2 to 3 feet high, more or less leafy, with puberulent inflorescence: 
lower leaves often very large, twice or thrice ternate, then once 
or twice pinnate; segments (often small) ovate, laciniately pin- 
natifid; upper leaves often ternate-pinnate or simply pinnately 
compound: umbel of numerous rays, with involucels of several 
narrowly linear elongated bractlets; rays (fruiting) 2 to 3 inches 
long; pedicels 6 lines long: fruit oblong, about 3 lines long, with 
somewhat prominent conical stylopodium, and prominent some- 
what winged ribs: oil-tubes 3 to 5 in the intervals, 6 to 8 on the 
commissural side: seed somewhat dorsally flattened, with angled 
