MAMMALS OF THE MEXICAN BOUNDARY. 135 



meters (2,569 feet), was occupied by my party from June 7 to 8 and 

 23, 1894. (Plate XIII, fig. 2.) 



Station No. 90. — ^J. M. Gray's Ranch, San Diego County, Cali- 

 fornia, about 14.5 kilometers (9 miles) nearly north of Monument 

 No. 240, 169 kilometers (105 miles) from the Colorado River, and Gl 

 kilometers (38 miles) from the Pacific Ocean. This station was 

 occupied by my party from June 8 to 9, 1894. 



Station No. 91. — Thomas Cameron's Ranch, San Diego County, 

 California, 13 kilometers (8 miles) nearly north of Monument No. 

 240, 167 kilometers (104 miles) from the Colorado River, and 60 

 kilometers (37 miles) from the Pacific Ocean. Station occupied 

 from June 21 to 23, 1894. 



Station No. 92. — Campbell's Ranch, at Laguna Mountains (Coast 

 Range), San Diego County, California, 31 kilometers (19 miles) 

 north of Monument No. 240, 187 kilometers (116 miles) from the 

 Colorado River, and 92 kilometers (57 miles) from the Pacific Ocean. 

 This station, which has an altitude of 1,675 meters (5,496 feet), was 

 occupied by my party from June 9 to 21, 1894. To Mr. Campbell, 

 the owner of the ranch, we Avere indebted for the privilege of occu- 

 pying his house and carrying on the work with the greatest comfort, 

 while his employees aided us in various ways. This station lies in 

 the Transition Zone, the highest peaks extending well into the Cana- 

 dian or lowest section of the Boreal Zone. We did not visit Cuya- 

 maca Mountain, the highest peak of the region, about 10 kilometers 

 (6 miles) distant. 



Flora of Laguna Mountains. — The lists below give the diiferent 

 varieties of plant life found in the vicinity of this station. 



The following is a list of the trees collected : 



Pinus sahiniana Douglas. 

 Pinus coulteri Lambert. 

 LiJ)ocedrus decurrens Torrey. 

 Salix nigra Marshall. 

 Quercus ilumosa Xuttall. 

 Querous chrysolepls Liebmann. 

 Quercus ivislieeiii A. cle Candolle. 

 Quercus calif ornica (Torrey) Cooper. 

 Um.'bellularia calif ornica (Hooker anrl 

 Arnott) Nuttall. 



Other conspicuous plants are: 



Rosa californica Chamisso and Schlecli- 



tendal. 

 Rhamnus tomentella Bentham. 

 Ceanothus leucodermis Greene. 

 Ceanothus rigidus Nuttall. 

 Ceanothus palmeri Trelease. 



Platanus racemosa Nuttall. 

 Amelanchier alnifolia Nuttall. 

 Heteromeles arMtifoUa (Poiret) Roe- 



mer. 

 PnmuK demissa (Nuttall) Walpers. 

 Primus ilioifolia (Nuttall) Walpers. 

 Rhamnus crocea Nuttall. 



Garrya sp. 



Eriodictyon crassifoHum Bentham. 

 Symphoricarpos oreophilus Gray. 

 Symphoricarpos racemosus Michaux. 

 Arctostaphylos sp. 



Station No. 93. — Tecate River, Lower California, 1.6 kilometers 

 (1 mile) south of Monument No. 245, 175 kilometers (109 miles) west 



