MAMMALS OF THE MEXICAN BOUNDARY. 9 C J 



Other shrubs and conspicuous plants arc : 



Ephedra trifurca Torrey. 

 Yucca baccata Torrey. 

 Nolina Undheimeriana (Scheele) Wat- 

 son. 

 Dasylirion wheeleri Watson. 

 Agave palmeri Engelmann. 

 A triplex sp. 



Mimosa biuncifera Bentbam. 

 Mimost dysocarpa Bentham. 

 Mimosa lindheimeri Gray. 

 Mimosa grahami Gray. 



Cassia leptocarpa Bentham. 



Cassia wislizeni Gray. 



Erythrina flabelliformis Kearney. 



Fouquieria splendens Engelmann. 



Anisacanthus thurberi Gray. 



Cucurbita fcetidissima Humboldt, 



Bonpland, and Kunth. 

 Cucurbita digitata Cray. 

 Baccharis glutinosa Persoon. 

 Hymenoclea monogyra Torrey and 



Gray. 



Station No 31. — Bisbee, Arizona. L3 kilometers (8 miles) north of 

 Monument No. 91, at an altitude of 1,700 meters (5,578 feet). The 

 town occupies a section of a steep and rugged canyon of the Mule 

 Mountains, whose neighboring peaks rise to the altitude of 2,172 

 meters (7,126 feet). The mountains are sparsely wooded with oak, 

 red juniper, boxelder, hackberry, sycamore, walnut, and desert willow 

 trees. Mammals, birds, and plants were collected in September, 

 1892, and October, 1893, by myself and Mr. Holzner. A series of 

 specimens of copper and associated minerals was secured for the 

 U. S. National Museum, through the liberality of the managers of 

 the Copper Queen Mine, which is at Bisbee. 



Station No. 32. — San Jose Mountain, Sonora, Mexico. From a 

 base level of 1,308 meters (4,265 feet) this mountain rises abruptly to 

 the height of 2.511 meters (8,337 feet). Timber line begins near the 

 true base of the cone on the north side, but considerably higher on the 

 south. The principal peak is about 8.5 kilometers (5.25 miles) south 

 of Monument No. 93 and 386 kilometers (240 miles) Avest of the Rio 

 Grande (measured on the Boundary Line). This mountain is wooded 

 with aspen and deciduous white oak at the summit, with zones of 

 Arizona pine, checkerbark juniper, and evergreen oak below. The 

 arboreal and low vegetation are quite varied, but water exists in small 

 and uncertain amounts. The writer ascended the main San Jose 

 Peak, in company with Lieut. William P. Jackson, on September 26, 

 1892. and established Mr. Llolzner in a camp at Oallina Springs, in a 

 canyon on the northeast side of the mountain. This camp he again 

 visited, replacing Mr. Holzner, on October 1. 1882. On August 

 4, 1893, I ascended the two highest peaks from the southwest. On 

 August 5. is 1 .): 1 ,. Lieut. George II. McMaster and myself ascended the 

 main peak from the north side, near Monument No. 93, and estab- 

 lished a camp at a small spring on the north side at an altitude of 

 1,830 meters (C.ooo feet), from which point I made daily excursions 

 from the base of the mountain to its main summit, and trapped for 

 mammals until August 12. Important collections were made at this 

 station. 



