S'TTANDLEY—ALLIONIACEAE OF THE UNITED STATES. 
Stems not at all hirsute. 
Stems densely soft-pubescent through- 
339 
out. —_ 35. A. chersophila, 
Stems rough- puber ulent. 
Plant stout; leaves linear-lanceo- 
late, 55 mm. long and 17 mim. 
wide or less; lobes of the involu- 
cre elliptical or ovate, obtuse_---- 420. A, pseudaggregata 
subhirsuta. 
Plant smaller and more slender: 
leaves linear-lanceolate, 27 mm. 
long and 5 mm. wide or less; 
lobes of the involucre lanceolate 
or elliptical, acute - oe 36. A. trichodonta. 
Stems glabrous below. 
Fruit glabrous____----------------------- BS. A. eraltata, 
Fruit not glabrous. 
Lower leaves ovate, rounded at the base. 3%, A. sessilifolia, 
Lower leaves lanceolate or linear-lanceo- 
late, narrowed at the base. 
Branches of the inflorescence  alter- 
nate, forming a cyme; leaves thin, 
tapering at both ends, more or less 
pubescent —-_----—-- . 42. A. pseudaggregata 
Branches of the inflorescence “alterna ite, 
forming a panicle. 
Perianth white: leaf blades thin, 
acute, or acuminate ——~-—~--------- 41. A, albida. 
Perianth pink: leaf blades thick, 
blunt-pointed. 
Involucre 3-flowered and 3-fruited_ 40. A. lanceolata, 
Involucre 1-flowered and 1-fruited_ 40a. A. lanceolata wni- 
flora, 
1. Allionia coccinea (Torr.) Standley. 
Orybaphus coccineus Torr. Bot. Mex. Bound, 169. 1859. 
Mirabilis coccinea Benth. & Hook. Gen. Pl. 3: 5, T8800. 
Allionia linearis coccinea Jones, Contr. Western Bot. 10:51. 1902, 
Specimens eramined: 
New Mexico: Copper mines, Wright 1728, type collection ; Kingston, 1904, 
Vetcealfe 1379; Mangas Springs, 1905, Metcalfe 91; Mogollon Creek, 
1903, Metcalfe 229; Rio Apache, 1892, Wooton; 5 miles west of Silver 
City, 1906, Wooton; Silver City, 1880, Greene; Burro Mountains, 1880, 
Rusby 354; Eagle Peak, 1900, Wooton; Mexican Boundary Survey 
1115. 
Arizona: Bradshaw Mountains, 1892, Touwmey 482; Putnams, 1890, Jones; 
Prescott, 1804. Toumeys Nogales, 1892, Brandegee ; mouth of Blue 
River, 1905. Hough; Fort Huachuca, 184. Wilcox 207; Fort Rucker, 
1879, R. T. Budd: Marsatzal Mountains, 1867, Doctor 
Smart 227 
Lowell, 1884, Parish; Hassayamipa Creek, 1865, Cowes & Palmer O74, 
874: Santa Rita Mountains, 1881, Pringle; Fort Apache, 1908, Mayer- 
hoff 117. 
Mexico: San José Mountains, Sonera, 1893, Mearns 1757. 
