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 Platanus wrightii Wats. Arizona Sycamore. 



Range. — Southwestern New Mexico and southern Arizona; Mexico (Sonora). 

 NAMES in USE. — Sycamore (Ariz.); Arizona Sycamore (Oal.). 



Family ROSACEA. 

 VATJQTJELINIA Correa ex H. B. K. 



Vauquelinia californica (Torr.) Sargent. Vauquelinia- 



Yauquelinia torre yi Wats. 



Range. — Southern Arizona (mountains; arborescent on Santa Catalina Mountains) 

 and Mexico (Sonora) to Lower California. 



CERCOCARPUS H. B. K. 

 Cercocarpus ledifolius Nutt. Mountain Mahogany. 



Range. — From western Wyoming to Montana (western slopes Rocky Mountains), 

 Idaho (Coeur d'Aleue Mountains), Oregon (eastern Blue Mountains), and southward 

 (through Wasatch Mountains and ranges of the Great Basin) to California (eastern 

 slopes Sierra Nevada and northern slopes of San Bernardino Mountains), and to 

 northern New Mexico and Arizona. 



Name in use. — Mountain Mahogany (Oal., X. Mex., Utah, Idaho,, 

 Mont.). 



Cercocarpus parvifolius Nutt. Valley Mahogany, 



Range. — from western Nebraska'to Oregon (Siskiyou Mountains), south to west- 

 ern Texas and northern Mexico; California (west of Sierra Nevada and south to 

 San Jacinto mountains; Santa Cruz Islands); Lower California (mountains). 



Names in use. — Mountain Mahogany (Oal., N. Mex., Utah, Idaho, 

 Oolo.); Valley Mahogany (Oal.); Feather- tree (Cal.). 

 Cercocarpus parvifolius betuloides (Nutt) Sargent. 



Birchleaf Mahogany. 



Range. — California (coast ranges). 



Cercocarpus parvifolius breviflorus (G-r.) Jones. 



Short-flower Mahogany. 



Range. — Southern houndary of New Mexico, Arizona, and California. 



Cercocarpus parvifolius paucidentatus Wats. 



Entireleaf Mahogany. 



Range. — Northern New Mexico and southern Arizona. 



PYRUS Linn. 

 Pyrus coronaria Linn. Sweet Crab- 



Range. — Canada (from Humber River west on shores of Lake Erie) and south 

 through western New York and Pennsylvania to the District of Columbia, and on 

 the Allegheny Mountains to central Alabama; west to southern Minnesota, eastern 

 Nebraska, eastern Kansas, Indian Territory, northern Louisiana, and eastern Texas. 



Names in use.— American Orab (R. I., N. J., Del., Pa., Ala., Miss., 

 La., 111., Ohio, Out., Ivans., "Nebr., Mich., Minn.); Sweet-scented Orab 

 (Mass., Del., Pa., N. 0., S. C, Miss., 111., Ohio, Iowa) ; Orab Apple (S. C., 

 La., Ky., Mo., 111., Ohio, Iowa, Kans., Nebr.); Wild Crab (N. Y., HI., 

 lnd., Wis., Iowa, Kans., Minn., Mo., Ark.); Crab (W. Va., K C, Ga. ? 

 Miss., Wis.); American Crab Apple (Nebr.); Fragrant Crab. 



