STAN DLEY—ALLIONIACEAE OF THE UNITED STATES. 341 
Readily distinguished by its glabrous, tuberculate fruit and strict. slender 
habit. Type in the herbarium of the University of California (sheet 101176), 
collected on rocky hills near Chihuahua, Mexico, September, 1886, Pringle 840. 
4. Allionia glabra (S. Wats.) Kuntze, Rev. Gen. PI. 583. 1891. 
Oxrybaphus glaber S. Wats. Am, Nat. 7: 301, 1875. 
On account of its glabrous fruit and stems this is a very distinct species. 
The involucres are usually 1-flowered. The type material consisted of merely 
a few panicles in fruit broken from the ends of the stems, but there is little 
doubt about the identity of the plant. 
Type locality, Kanab, Utah. 
Specimens eramined: 
Urau: Southern Utah, 1872, Win Thompson 303. 
ARIZONA: Northeastern Arizona, 1896, Hough 53. 
New Mexico: Mesilla Valley, 1907, Wooton & Standley 3895; Mesilla 
Valley, 1890, Wooton; Arroyo Ranch near Roswell, 1903 Griffiths 5683 ; 
Albuquerque, 1894, Herrick; Brockman’s Ranch, 1900, Wooton. 
Texas: No locality given, Havard, 
5. Allionia linearis Pursh, Fl. Am. Sept. 2: 728. 1814. 
Calymenia angustifolia Nutt. Gen. N. A. Pl. 1:26, 1818. 
Orybaphus angustifolius Sweet, Hort. Brit. 1: 334. 1826. 
Orybaphus angustifolius linearis Choisy in DC, Prod, 18*: 433, 1849, 
Mirabilis angustifolia MacM. Metasperm. Minn, Val, 216, 1892, 
Allionia bushii Britton, Bull. Torr. Club 22: 223. 1895, 
Mirabilis linearis Heimer], Ann. Cons. et Jard. Genev. 5: 186, 1901. 
This is an exceedingly variable species, and one that is difficult to study from 
herburium material. Such muterial usually does not show the color of the 
flowers, nor, what is of more importance, the habit of the plant. As it is defined 
here it is probably a composite species, and some of the specimens should per- 
haps even be placed in some of the closely related species. Some of the plants 
are noteworthy because of their bracted inflorescence which has slender and 
much jointed branches. Whether this form is worthy of separation I have 
been unable to determine. 
Specimens cxcamined in part: 
ARIZONA: Base of San Francisco Mountains, 1884, Lemmon; mesa west 
of Buckskin Mountains, 1894, Jones 6063b; San Francisco Mountains, 
1889, Knowlton 178; Walnut Canyon near Flagstaff, 1891, MVacDougal. 
New Mexico: Organ Mountain foothills, 1894, Wooton; White Mountains, 
1897, Wooton 77; Mangas Springs, 1901, Metcalfe; Dog Spring, Dog 
Mountains, 18938, Mearns 2421; Sierra Grande, 1908, Hoirell 225; 
Crawfords, 1906, Wooton; Zuni Reservation, 1904, Wooton 2830; Raton, 
1899, Cockerell; Rio Frisco, 1900, Wooton; mountains north of Santa 
Rita, 1900, Wooton; Socorro, 1881, Vasey; Chiz, 1904, Wooton 2828; 
Roswell, 1900, Zarle 365; Capitan Mountains, 1900, Marle 495; Gila 
Hot Springs, 1900, Wooton. 
Cotorapo: Colorado Springs, 1892, C. S. Sheldon 563; Grand Junction, 
1894, Jones 5476: Platte River, Denver, 1878, Jones 668; Durango, 
1896, Tweedy 591; Fort Collins, 1898, 2150; near Boulder, 1902, 
Ticeedy 5208, 5209; Canyon City, 18738, Brandegee 487: New Windsor, 
1904, Osterhout, 2926. 
Wyrominc: Wheatland, 1894. A, Nelson 879; North Fork of the Laramie 
River near Prayers Crossing, 1899, Schuchert, 
