136 BULLETIN 56, UNITED STATES NATIONAL MUSEUM. 



of the Colorado Eiver, and 48 kilometers (27 miles) east of the 

 Pacific Ocean. Altitude 520 meters (1,706 feet). This station, 

 which is located on the right bank of the Tecate River, at the foot of 

 Tecate Mountain (altitude 1,185 meters, or 3,888 feet), was occupied 

 by my party from June 23 to 27, 1894. 



Station No. 94. — San Isidro Ranch, Lower California, about '3 

 kilometers (2 miles) south of Monument No. 250, 190 kilometers (118 

 miles) from the Colorado River, and 31 kilometers (19 miles) from 

 the Pacific Ocean. This station, which was occupied from June 27 

 to July 3, 1894, was located on a stream near its origin in a large 

 spring in a nearly inclosed hollow of the Cerro de San Isidro. 



Station No. 95. — Jamul Creek, at the old date palm tree, between 

 Dulzura and El Nido, San Diego County, California. This station, 

 which was occupied by my party from July 3 to 9, 1894, is 11 kilo- 

 meters (7 miles) north of Monument No. 251, 204 kilometers (127 

 miles) from the Colorado River, and 24 kilometers (15 miles) from 

 the Pacific Ocean. 



Station No. 96. — Pacific Ocean at the mouth (south side) of 

 Tijuana River, 217 kilometers (135 miles) west of the Colorado 

 River and near the last Boundary Monument (No. 258). My party 

 was encamped at this place from July 9 to 20, 1894. Mr. Frank X. 

 Holzner left the party July 20, 1894, on which date we reached San 

 Diego. 



Flora of Paci-fic slope of the Coast Range Mountains. — Following 

 is a list of the trees and other conspicuous plants observed by us 

 between Jacumba Hot Springs (Monument No. 233) and the mouth 

 of the Tijuana River (Monument No. 258), on the Boundary Line. 

 A list of the coarse vegetation at the summits of the Coast Range, 

 north of the Boundary Line, has been given in the description of 

 Station No. 92. 



The trees are : 



Pinus monophylla Torrey and Fre- 

 mont. 

 Cupressus govenlana Gordon. 

 Juniperus californica Carriere. 

 Yucca mohavensis Sargent. 

 >yalia) nigra Marshall. 

 Salix hrvigata Bebb. 

 Saliai fluviaUUs Nuttall. 

 Sallx lasiolepis Benthani. 

 Populus fremontii Watson. 

 Ahiiis oregona Nuttall. 

 Quercus engelmanni Greene. 

 Quercus rliimosa Nuttall. 

 'Quercus agrifolia Nee. 

 Pkilanus raremosa Nuttall. 



Cercocarpus i)arvifo!ii(K hetuloides 

 (Nuttall) Sargent. 



Heleromeles arhutifoUa (Poiret) 

 Roemer. 



Prunus ilicifolia (Nuttall) Walters. 



A facia greggii Gray. 



Prosopis glandnlosa Torrey. 



Adenostoma sparsifoliuni Torrey. 



Fremontodendron califoniiciiw' (Tor- 

 rey) Coville. 



Rhvs integrifoUa (Nuttall) Benthani. 



Opuntia prolifera Engelmann. 



Arctostaphylos sp. 



Samhncus glaiica Nuttall. 



