NORTH AMERICAN AMYGDALUS WIGHT 135 



New Mexico; "Western New Mexico," Dr. Bigelow on the Whipple 

 Expedition. 



California; Panamint Mts., Inyo Co., Coville & Funston No. 555, April 

 4, 1891. Mill Creek Canyon, Panamint Mts., at about 4200 ft. alt., Coville 

 & Funston No. 801, May 20, 1891. Lone Pine Canyon, desert slopes of the 

 San Gabriel Mts. at 4500 ft. alt., Abrams and MacGregor No, 668, July 5, 

 1908. Morongo Mts., Colorado Desert, S. B. & W. F. Parish, April, 1882. 

 Mountains, Mojave Desert, S. B. & W. F. Parish, May, 1882. Sandy places, 

 south fork of Kern River, at 2-3000 ft. alt., C. A. Purpus No. 5022, 1897. 

 Santa Maria, Santa Barbara Co., L. Jared, 1882. Summit of Providence 

 Mts., at 5000 ft. alt., J. G. Cooper, May 29, 1861. San Bernardino Mts., 

 Pipe Canyon, S. B. Parish, June 16, 1894. Pleasant Canyon, Panamint Mts., 

 5500 ft. alt., M. E. Jones, May 6, 1897. Summit Cajon Pass, San Ber- 

 nardino Co., at 4200 ft. alt., H. M. Hall and H. P. Chandler No. 6755, 

 April 27, 1906. San Gabriel Mts., Los Angeles Co., L. R. Abrams and 

 E. A. McGregor No. 525, July 3, 1908. 



Amygdalus andersonii (Gray) W. F. Wight. 

 Prunus andersonii Gray, Proc. Am. Acad. 7 : 337. 1868. 



Leaves sessile, oblong-oval to lanceolate, sometimes varying to oblan- 

 ceolate on flowering shoots, 10 to 20 mm. long, mostly 3 to 6 mm. broad, 

 cuneate toward the base and furnished with one to three glands or egland- 

 ular, acute at the apex or sometimes obtuse, light green and glabrous on both 

 surfaces or slightly paler below, the margins with indistinct acute and 

 eglandular serrations or entire. Flowers appearing in March and April, 

 about 18 mm. broad in dried specimens, apparently solitary in pedicels 

 3 to 4 mm. long; the calyx glabrous, the tube broadly campanulate, about 

 2 mm. long, the lobes 1.5 mm. long, obtuse, pubescent within, the margins 

 sparingly glandular or eglandular; petals pinkish, obovate or oblong and 

 cuneate toward the base, 6 to 8 mm. long, 3 to 4 mm. broad; ovary hirsute. 

 Fruiting pedicels rather stout, 6 to 10 mm. long; the fruit with a dry exocarp 

 and pubescent but not densely so, slightly flattened and narrowed toward the 

 base, usually rounded at the apex but furnished with a mucronate point, 

 when dry 12 to 17 mm. long, 10 to 14mm. broad; stone 11 to 13 mm. long, 

 9 to 11 mm. broad and 6 to 7 mm. thick, narrowed toward the base, obtuse 

 at the apex, within a rather well-marked ventral wing and a shallow groove 

 along the dorsal edge, the surface reticulate. 



A shrub about 1 m. high with rather rigid, strict branches and more or 

 less spinescent branchlets, the young growth greenish or sometimes with a 



