COULTER AND ROSE—NORTH AMERICAN UMBELLIFERAE. 53 
20, Eryngium petiolatum Hook. Fl. Bor. Am. 1: 259. 1834. 
FE. petiolatum juncifolium Gray, Proce. Am. Acad. 8: 385. 1872. 
Erect and slender, 3 to4dm. high, branching above; basal and lower 
stem leaves reduced to long nodose petioles, with or without small nar- 
rowly lanceolate blades, which are nearly paralle) veined and from 
remotely spinulose to spinulose-serrate; upper stem leaves narrow, 
opposite, attenuate below, spinulose-serrate above, spinulose at base; 
heads short-peduncled, globose, small (about 8 mm. in diameter); 
bracts and bractlets subulate, ciliate-spinose, rigid, at least twice as 
long as the head, and making it quite spinose; fruit with lanceolate 
cuspidate-acuminate sepals longer than the styles. 
Type locality, ** Moist soils on the plains of the Multnomak |prob- 
ably Multnomah] River,” Oregon; collected by Douglas; type in Herb, 
Brit. Mus. 
Wet ground, western Oregon. 
Specimens examined: 
OrEGON: “Near the Umpqua River,”’ Wilkes Exped. 1156; wet places in prairies, 
near Salem, Marion County, //a// 200, in 1871 (type of E. petiolatum juncifo- 
lium Gray); “swales, western Oregon,’’ Howell, August, 1880; Hood River, 
Wasco County, Henderson 369, August 5, 1884; Willamette Valley, Howell 
30, August, 1886; near Medford, Howell, July, 1887; near Kerbyville, Howell 
380A, July, 1887. 
Hooker described this species from ‘one, and that an imperfect specimen,’’ but at 
the same time it is an unmistakable diagnosis. Later authors confused it with 
FE. articulatum, and Gray merged the two under the name /. petiolatum. From that 
time the specimens of J. artieulatuim stood for EH. petiolatuim, and when specimens of 
true /. petiolatum came to hand in the collections of Hall, and from near the type 
locality, Gray described them as £2. petiolatuim juncifolium. This is, of course, not the 
E. petiolatum of our former revision. 
21. Eryngium elongatum (. & R., sp. nov. 
Erect, 3 to + dm. high, somewhat branching above; basal leaves 
elongated, oblanceolate, 8 dm. long, spinulose-serrate, abruptly acumi- 
nate, gradually tapering below into spinulose-winged petioles; upper 
leaves similar, but much smaller; heads on short stout peduncles, nearly 
globose, about 15 mm. long; bracts broadly linear, somewhat weak 
and becoming reflexed, much longer than the beads, becoming 25 
mm. long, spinose-bristly except toward the tip, more or less scarious 
margined at base: bractlets narrow and rigid, a little longer than the 
flowers, with conspicuous scarious margin below (broader at base), 
usually without bristles; sepals ovate, scarious-margined, 2 mm. long, 
with an abruptly cuspidate-bristly tip: styles longer than the sepals. 
Type locality, near San Francisco, Cal.: collected by G. 2. Vasey, in 
1875; type in U.S. Nat. Herb. 
In the Bay region of California. 
