4?4 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
17. Lomatium hallii (S. Wats.) Coult. & Rose, Contr. Nat. Herb. 7: 224. 1900. 
Peucedanum hallii S. Wats. Proc. Am. Acad. 11: 141. 1876. 
Type Locauity: “ Northern Oregon.”’ 
Rance: Alpine in northern Oregon and Washington, 
Specimens collected on Mount St. Helens by Mrs. Briggs in 1885, have been somewhat 
doubtfully referred to this species. It is otherwise known only from the neighborhood of 
Mount Hood, Oregon. 
18. Lomatium laevigatum (Nutt.) Coult. & Rose, Contr. Nat. Herb. 7: 225. 1900. 
Peucedanum laevigatum Nutt. in Torr. & Gr. Fl. 1: 627. 1840. 
Type Locauity: “Blue Mountains of Oregon.” Collected by Nuttall. 
Rance: Along the upper Columbia in Oregon and Washington. 
SPECIMENS EXAMINED: Near Columbus, Suksdorf 863. 
19. Lomatium triternatum (Pursh) Coult. & Rose, Contr. Nat. Herb. '7: 227. 1900. 
Seseli triternatum Pursh, Fl. 1: 197. 1814. 
Peucedanum triternatum Nutt.; Torr. & Gr. Fl. 1: 626. 1840. 
TYPE LocaLity: “On the waters of Columbia.”” The type was collected May 6, 1806, 
by Lewis, on which date the Lewis and Clark Expedition was on the Clearwater River, 
Idaho, near the mouth of Potlatch River. 
Rance; From northeastern California to British Columbia. 
SPECIMENS EXAMINED: Yelm, Piper 568; Smith, July, 1890; between Olympia and 
Gate City, Heller 4056; Goat Mountains, Allen 257; Wenache, Whited 1021; Ellensburg, 
Whited 658; North Yakima, Henderson 2513; Peshastin, Sandberg & Leiberg 596; Fort 
Colville, Lyall; Spokane County, Suksdorf 318; Spangle, Piper, July 24, 1899; Pullman, 
Piper 1568; Elmer 846; Waitsburg, Horner 104; Cottonwood Creek, Vasey, June 6, 1902: 
Colville, Kreager 603. 
ZONAL DISTRIBUTION: Upper Sonoran and Transition. 
This species varies much in the form of the fruit and in the breadth of the wings. Wide- 
winged forms have been referred to L. platycarpum (Peucedanum simpler). If the latter 
be characterized by having the wings of the fruit broader than the body, our plants would 
all seem referable to triternatum. Wherever the line of division is drawn, the fact remains 
that a complete series of intergrades exists. 
20. Lomatium robustius Coult. & Rose, Contr. Nat. Herb. 7: 228. 1900. 
Peucedanum triternatum macrocarpum Coult. & Rose, Rev. N. A. Umb. 70. ISS8, not 
Peucedanum macrocarpum Nutt. 1840. : 
Peucedanum triternatum robustius Coult. & Rose, Contr. Nat. Herb. 3: 228. 1895. 
Tyre Locauity: “ Low grounds, W. Klickitat County, Wash.’ Collected by Suksdorf. 
Rance: Eastern Washington and eastern Oregon. 
SPECIMENS EXAMINED; Klickitat County, Svksdorf 131; Ellensburg, Piper 2742. 
21. Lomatium grayi Coult. & Rose, Contr. Nat. Herb. 7: 229. 1900. 
Peucedanum millefolium 8. Wats. in Bot. King Explor. 129. 1871, not Sonder, 1861-62, 
Peucedanum grayi Coult. & Rose, Bot. Gaz. 18: 209. 1888. 
Type Locairy: “Antelope Island, (Great) Salt Lake,” Utah. Collected by Watson. 
Rance: From eastern Washington and Oregon to Wyoming and Colorado. 
SPECIMENS EXAMINED: Wenache, Whited 1050; Ellensburg, Whited 657; North Yakima, 
Henderson, May 29, 1892; west Klickitat County, Suksdorf 280, 24; Morgans Ferry, 
Suksdorf 322; Fort Colville, Lyall in 1861; Hangman Creek, Sandberg & Leiberg 5; Ritz- 
ville, Sandberg & Leiberg 180; Pullman, Elmer 95; Wawawai, Piper 1767; Touchet River, 
Horner 609; Blue Mountains, Piper 2339; Dry Creek, Vasey, May 5, June 7, 1902; Cape 
Horn, Piper 5012. 
ZONAL DisTRIBUTION: Arid Transition and Upper Sonoran. 
