( 385 ) 
2. Amygdalus Fremontii (S. Wats.). 
Prunus Fremontii S. Wats. Bot. Calif. 2: 442. 1880. 
Type locality: “Coast Ranges of southern California; Ori- 
flamme Canyon, San Diego County (D. Cleveland); San Bernar- 
dino Mountains, Parry &? Lemmon, n. 108, 1876. Also collected 
by Fremont in 1846, locality uncertain.” 
Distribution: Southern slopes of the Chuckawalla Mountains, 
south to northern Lower California. Lower Sonoran and extend- 
ing into the lower edges of the Upper Sonoran. 
Specimens examined: San Felipe, Parry, 1850 (Referred to 
Prunus subcordata by Torr. Bot. Mex. Bound. 63); no locality, 
Parry &§ Lemmon 108. 
MIMOSACEAE. Mimosa Famtity. 
Stamens numerous; pods flattened, straight or more or less curved. 
1. Acacia. 
Stamens Io. 
Pods straight or slightly curved. 2. Prosopis. 
Pods coiled into a spiral. 3. Strombocarpus. 
1. ACACIA. Acacta. 
1. Acacia Greco A. Gray, Pl. Wright. 1: 65. 1850. 
Type locality: “‘Western Texas” and “‘dry valley west of Patos, 
Northern Mexico.” 
Distribution: A characteristic shrub of the Lower Sonoran, ex- 
tending from the western borders of the Colorado Desert in south- 
ern California eastward to western Texas and southward into Lower 
California and northern Mexico. 
Specimens examined: Banner, Susan G. Stokes, July 26, 1895; 
San Felipe, Abrams 3970; Carriso Creek, Abrams 3985; Piute 
Creek, Norman C. Wilson, June 6, 1893; near Indio, Hall 5987; 
Jacumba Hot Spring, Cleveland, July 3, 1884; Providence Moun- 
tains, Brandegee, May 25, 1902. 
2. PROSOPIS. Mesoguirr. 
Leaves glabrous. 1. P. glandulosa. 
Leaves pubescent. 2. P. velutina. 
1. Prosopis GLANDULOsA Torr. Ann. Lyc. N. Y. 2: 192. 1828. 
Prosopis odorata Torr. & Frem. in Frem. Second Rep. 313, pi. 1. 
1845, excluding fruit which is Strombocarpus pubescens. 
Type locality: “On the Canadian? [River].” 
