106 



BULLETIN 56, UNITED STATES NATIONAL MUSEUM. 



Among the interesting specimens collected were topotypes of Hes- 

 perornys sonoi'iensis Le Conte. 



Flora of the toion of Santa Cruz^ Sonora. — Besides the products of 

 orchards, fields, and gardens, the trees and coarser plants in the 

 immediate vicinity are: 



Junipertis pachyphloea Torrey. 



Yucca hrevifolia Torrey. 



Juglans rupestris Engelmann. 



Ralix occidentalis lonffipcs (Anclers- 



son) Bebb. 

 i^alix ia.rifolia Humboldt, Bonplaiul, 



and Kuntb. 

 PopiiJus frc))ioiitii Watson. 

 Quercus arhouica Sargent. 

 Qiicrciis ohloiifii folia Torrey. 



Celtis occklentaVis Linnaeus. 



Morns celtidifolia Humboldt, Bou- 



pland, and Kuntb. 

 Plat an us ivrightii Watson. 

 Prosopis glandulosa Torrey. 

 Acer ncgumlo Linuiieus. 

 Arctosiaphylos pungcns Humboldt, 



Bonpland. and Kuntb. 

 i^anibucus glauca Nuttall. 



The banks and thickets were covered with grai:)e {Vitis arizonica 

 Engelmann), the hills with das^dirion {DasyUrlon loheeleriV^ 'nison) , 

 and an abundance of the buffalo currant {Rihes atiretim Pursh) grew 

 along the Santa Cruz River banks, together with the usual comple- 

 ment of dock, cocklebur, gourd, and spiny aster. Level and waste 

 places bordering the river are sometimes covered with the prickly 

 Mexican poppy {Argernone mexkana Linnjeus). 



Station Xo. 40. — Santa Cruz River at Monument No. 118 (west 

 of the Patagonia Mountains) . Mr. Holzner camped from May 26 to 

 July 10, 1893, near Monument No. 118, 461 kilometers from the Rio 

 Grande, at an altitude of 1,130 meters (3,708 feet), and collected 14 

 mammals and 379 birds. 



Station No. 41, — Road-crossing of the Santa Cruz River, Sonora, 

 Mexico, 2 kilometers (1.5 miles) south of Monument No. 118. The 

 river is heavily wooded with cottonAvood, willow, walnut, very tall 

 mesquites, and other trees. Altitude, about 1,140 meters (3,740 

 feet). Occupied by Mearns and Holzner on October 23 and 24, 1893, 

 when plants, birds, and mammals were collected. 



Station No. 42. — Nogales, Arizona. Monument No. 122. Alti- 

 tude, 1,174 meters (3,852 feet). Distance from the Rio Grande, meas- 

 ured on the Mexican Boundary Line, 469 kilometers (292 miles) ; dis- 

 tance from the Colorado River, measured on the ]y^exican Boundary 

 Line, 389 kilometers (242 miles). The grove of walnut found by 

 Major Emory's party on Nogales Creek is now replaced by the 

 thriving town of Nogales, to which the walnut trees gave name. 

 Monument No. 122 stands on the north side of International Street. 

 Mr. Plolzner collected nine birds and one deer at Nogales in Decem- 

 ber and January, 1892; also 55 birds from April 14 to Maj^ 24, 

 1893. Assisted b}' Mr. Holzner, I made collections there from 

 October 24 to 28, 1893. In the Pajaritos Mountains, at Nogales, 

 intrusive rock appeared in the form of a coarse granite, of which 



