COULTER AND ROSE—NORTH AMERICAN UMBELLIFERAE. 241] 
As we now understand the group, it is composed of 6 species possessing certain char- 
acters in common which enable them to be distinguished readily from the nearest 
related genus. 
Oil tubes solitary in the intervals. 
More or less caulescent. 
Leaflets broadly cordate and somewhat lobed.......------------- L. 2. lucida. 
Leaflets not cordate. 
Leaves bipinnate..........-.-.-.--.----------------------- 2. E. parvifolia, 
Leaves biternate .......2-.-------- 6-02-22 eee ee eee eee eee ee eee 3. HE. hassei. 
Acaulescent and very pale......---.------------2 +--+ eee ee ee eee 4. FE. pallida. 
Oil tubes not solitary in the intervals. 
Peduncles 3 to 4.5 em. high; fruit 5 to 8mm, long.............22. 5. EL howellii, 
Peduneles 15 em. high; fruit 12mm, long............------------ 6. FE. insularis. 
1. Euryptera lucida Nutt. in Torr. & Gray, Fl. 1: 629. L840. 
Wea. 61. 
Peucedanum euryptera Gray, Proc. Am. Acad. 7: 548. 1868. 
Short caulescent, glabrous, rather stout, 1.5 to 6 dm. high; leaves 
ternate; leaflets broadly cordate, somewhat lobed, coarsely mucro- 
nate-toothed, 1 to 2.5 
em. long; umbel equally 
8 to 15-rayed, with in- 
volucels of lanceolate 
bractlets; rays 1 to 5 
em. long; pedicels 12 
mm. long; flowers yel- 
low; fruit nearly orbicu- 
lar, emarginate at each 
end, glabrous, 10 to I+ 
mm. in diameter, with 
wings more than twice as broad as body, and prominent obtuse dor- 
sal and intermediate ribs; oi] tubes solitary in the intervals, 2 to 4 on 
Fic. 61.—Euryptera lucida: a, x 2; b, x 3. 
the commissural side. 
Type locality, ** woods of San Diego, California;” collected hy Wut- 
tall in April; type in Herb. Philad. Acad. 
Southern California, in San Diego, Los Angeles, and San Bernar- 
dino counties. 
Iuiusr. Bot. Mex. Bound. Rep. pl. 27. 
Specimens examined: 
Cauirornia: Type specimens as cited under type locality; Fort Mohave and San 
Diego, Cooper 411, in 1860-61; San Diego, Orcutt, March 12, 1884; same sta- 
tion, Cleveland, in 1890; Sierra Madre, Los Angeles County, [Hasse, April 4, 
1890; plains west of San Bernardino, Parish 2132, A pril 4, 1891; Waterman 
Canyon, San Bernardino Mountains, Parish 3478, June 29, 1894.. 
2. Euryptera parvifolia (Hook & Arn.) C. & R. 
Ferula parvifolia Hook. & Arn. Bot. Beechey 348. 1840. 
Peucedanum parvifolium Torr. & Gray, FI. 1: 628. 1840. 
Peucedanum californicum C. & R. Bot. Gaz. 13: 143. 1888 
5872—_17 
