RypDBERG : STUDIES ON THE Rocky Mountain Frora 691 
Missouri: Malden, 1894, Bush, 459 (type in herb, Columbia 
University) ; Wayne, 1900, 825 ; also Courtney, 1891 ; McDonald 
county, 1893, 370. 
Soutu Daxorta: Spring Basin, 1891, 7. A. Willams. 
ALABAMA: Selma, 1888, A/cCarthy. 
7. ALLIONIA DIFFUSA Heller: Minn. Bot. Stud. 2: 33. 1898 
On dry plains, from North Dakota and Wyoming, to Kansas, 
New Mexico and Arizona. 
8. Allionia lanceolata sp. nov. 
A, albita Rydb. Cont. U. S. Nat. Herb. 3: 520. 1896. Not 
Walt. 1788. 
A branched perennial. Stems erect or ascending, glabrous 
below, viscid-pubescent with short hairs, 4-15 dm. high: lower 
leaves short-petioled, the upper sessile ; blades lanceolate or ovate- 
lanceolate to almost linear, 3-10 cm. long, very thick, obtuse or 
blunt at the apex : involucres numerous, in terminal cymes, I~1.5 
cm. wide; lobes rounded ovate, sometimes acutish : perianth pink, 
about 10 mm. broad: fruit obovoid, 4.5—5 mm. long, with usually 
4-5 broad ribs and finely tuberculate faces. 
This has usually gone under the name of Ad/zonta albida which it 
resembles in habit, but that species has white perianths and sharply 
acute or acuminate thin leaves. A. a/bida is confined to South 
Carolina and Georgia and is represented by A. /anceolata in the 
West. The latter grows in dry soil on the plains, from Minnesota 
and Wyoming to Tennessee and Texas. 
Cotorapo: Estes Park, Larimer county, Osterhout, 15.56 (type 
in herb, N. Y. Botanical Garden). 
9. ALLIoNIA LINEARIS Pursh, Fl. Am, Sept. 2: 728. 1814 
Ca'ymenia angustifolia Nutt. Gen. 1: 26. 1818. 
Oaybaphus angustifolius Sweet, Hort. Brit. 1: 334. 1826. 
In dry soil on the plains, from Minnesota to Montana, Arizona, 
Mexico and Louisiana. 
10. Allionia divaricata sp. nov. 
_ Avsiender perennial. Stems usually solitary, erect, 6-10 dm. 
high, glabrous and shining up to the viscid-puberulent inflores- 
cence: leaves more or less distinctly petioled, usually spreading ; 
