PAYSON—NORTH AMERICAN AQUILEGIA. 141 
less hooked at apex, 15 to 18 mm. long; styles 9 to 10 mm. long; ovaries finely pubes- 
cent; follicles 4 to 6, 1.5 to 2 cm. long, the tips usually erect. 
TYPE LocaLity: Wasatch Mountains, Utah. 
Rance: From the Canadian Rocky Mountains south through western Montana 
and adjacent Wyoming to northern Utah, westward to eastern Oregon and Washington. 
Rererences: A. Gray, Amer. Journ. Sci. III. 3: 149. 1872. Baker, Gard. 
Chron. n. ser. 10: 20. 1878. Jones, Zoe 4: 257. 1893. Robinson, Syn. Fl. 1: 43. 
1895. A. Nels, in Coulter, New Man. Rocky Mount. 191. 1909. Jones, Bull. Univ. 
Mont. 61: 28. 1910. Tidestrom, Amer. Mid. Nat. 1: 171. 1910. 
SPECIMENS EXAMINED. 
Canapa: Selkirk and Rocky Mountains, British Columbia, Shaw 282. Selkirk 
and Rocky Mountains, Peterson 23. Selkirk Mountains, headwaters of Downie 
Creek, Shaw 1141. Vicinity of Banff, Alberta, McCalla 2108. Head of Smoky 
River, Alberta, Hollister 10. Lake Louise, Macoun 64289, Taylor. Sophie 
Mountain, British Columbia, Macoun 63471. Lime Dike, British Columbia, 
Scheuber. South Fork of Moose River, British Columbia, Riley 52. 
Montana: Mystic Lake, Blankinship 5. MacDougal Peak, near Flathead Lake, 
Clemens, Jones 7983. Spanish Basin, Madison Range, Flodman 453. Lambert 
Valley, Mission Mountains, Jones. Gallatin Mountains, Jones. Mount Haggin, 
@ =snear Anaconda, Jones. Mineral Park, Glacier National Park, Jones. Avalanche 
Lake, Glacier National Park, Jones. Mount Bridger, Gallatin Valley, Jones. 
Mountains east of Tobacco Plains, H. B. Ayres. Near Red Lodge, Rose 105. 
Near Bozeman, Canby 14. Columbia Falls, Williams 685. Bridger Mountains, 
Rydberg & Bessey 4067. Jack Creek Canyon, Rydberg & Bessey 4070. Midvale, 
Umbach 189. Bracket Creek, W. W. Jones. Glacier Basin, Vreeland 1056. 
Lake McDonald, Vreeland 907. 
YELLOWSTONE Nationat Park: Undine Falls, A. & E. Nelson 5685. ‘“North- 
western Wyoming,’’ Parry 2. Yellowstone Falls, Broadhead. Near Mammoth 
Hot Springs, Burglehaus 34. Amethyst Mountain, Knowlton. Yellowstone 
Lake, Adams. Swan Lake Valley, Knowlton. Alridge, Scheuber. Tower Falls, 
Mearns 3578. Electric Peak, Mearns 127. 
Wyomine: Teton Mountains, Merrill & Wilcox 1064. 
Uran: City Creek Canyon, near Salt Lake City, Clemens; G. Engelmann; Jones. 
Black Mountain, Manti, Jones. Logan Canyon, Divide, Mulford 203. Alta, 
Jones. Provo Canyon, Jones (type of A. depauperata Jones). Silver Lake, Amer- 
ican Fork Canyon, Jones. Marysvale, Jones. Deer Creek, Wasatch Mountains, 
Jones (sepals pink). Wasatch Mountains, Watson 36, 35. Ephraim Canyon, 
Tidestrom 321. Big Cottonwood Canyon, Rydberg 6739. 
Ipano: Cuddy Mountains, Jones 6128. Packsaddle Peak, near Lake Pend d’Oreille, 
Sandberg, MacDougal & Heller 840. Payette Lake, Jones. Seven Devil Moun- 
tains, Jones. Lolo Trail, Watson 20. Near source of Mill Creek, above Lemhi 
Indian Reservation, Henderson 4023. Slopes of Stevens Peak, Leiberg 1458. 
Bonanza, Macbride & Payson 3488, 
Wasuinaton: Wenatchee Mountains, Elmer 446. Near top of Mount Baldy. 
Orecon: Wallowa Mountains, Cusick 2450. North of Bald Knob, Sampson & 
Pearson 102. 
Aquilegia flavescens is certainly most closely related to A. formosa Fisch. and may, 
I believe, be considered the parent of that species. The greatest development of 
flavescens occurs in the higher mountains of Montana and adjacent Wyoming and 
Canada. As we go westward from this region we find the species apparently merging 
into formosa; the sepals become salmon-colored or pink, the laminze shorter, and the 
spurs straight. This transitional area is often characterized by the lack of typical 
plants of either species, and in the mountains of Custer County, Idaho, the author 
23725°—18——-2 
