85 



* Lroi-i's tcntaU'ly dcro/i/po/iiu/, ic//// broad lea /lets simp! ,• 

 /ooi/u'd or scriurtc : seed- face flanc : eastern species (^f>r hli^h nort/i- 

 erii). 



I. L. actasifolium Mirhv. I'l. i. I()(). Stem stout, bnmchcci 

 al)o\ c, LMo (') feet liii^h, le;if\-, with glabrous inflorescence: leaves 

 large, ;} to 4-ternate; leaflets l)roaclly oblong, "l to T) inches long, 

 coarsely senate: umbel 10 to 'iO-iayed, with iuvoluccls of few 

 short bractlets; rays ( fruiting ) 1 to 2 inches long; pedicels 1 to 'i 

 lines long: fruit ovate, 2 to ;} lines long, with ])r()niinent somewhat 

 winged ribs: oil-tubes 8 to 4 in the intervals, (> on the commissural 

 side: seed slightly flattened dorsally, with angled b;'.ck. (Fig. 88.) 

 Rich ground, S. Pennsylvania to Kentucky, and southward to tlie 

 Gulf. Fl. .July and August. 



L'. 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- 

 ra3'ed, with involucels of several linear bractlets ; rays (fruiting) 



1 to '-3 inches long: fniit narrowlv ol)long, 4 to 5 lines long, with 

 prominent somewhat winged ribs: cjil-tubes small, 2 or 3 in th'e 

 inter\als, (') cm 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. {\VnUvr Dei\n(ty, 

 also in Alaska. 



* * T^cuvcs tcriiate-p'niiiatcly co/i/po/md^ with Icajiets iaciii- 

 iate/v toothed or piiuiatifid. 



f Rocky Mountain species. 



•5. L. SCOpulorum Gray, Free. Am. Acad. vii. 347. Stout, 



2 to 3 feet high, more or less leafy, with puberulent inflorescence: 

 lower leaves often ver\ large, twice or thrice ternate, then once 

 or twice pinnate; segments (often small) ovate, laciniately pin- 

 natiMd; upper leaves often ternate-pinnate or simply pinnately 

 compound : umbel of numeious ra\s, 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 dorsallv flattened, with angled 



