96 



BULLETIN 56, UNITED STATES NATIONAL MUSEUM. 



which has since entirely disappeared. Waterfowl were abundant 

 along the San Bernardino River and on the marshy meadows and 

 pools below the sj^rings. Archeological objects and rocks, j^lants, 

 molliisks, fishes, reptiles, batrachians, birds, and mammals were 

 collected. The writer w^as present at this station July G and 7, July 

 29 to September 11, 1892; August 17 to 24 and October 4 to 7, 1893. 

 Mr. Holzner, July 29 to September 11, 1892. 



Flora of San Bernardino River. — The principal trees and plants 

 found in this vicinity are given in the lists that follow. 



The trees are : 



Jiinipenis mono^pernia (Engeliuann) 



Sargent. 

 Fraxinus vcliitina Torrey. 

 Salix nigra Marshall. 

 Salix occklentalisi loiH/ipcs (Andersson) 



Bebb. 

 Salix taxifolia Ilmnboldt, Bonpland, 



and Kuntli. 

 Platanus wrightii Watson. 

 Yucca hrevifolia Torrey. 

 Moms celtidifolia Humboldt, Ron- 



pland, and Kuntb. 



Other conspicuous i:)lants are: 



Ephedra sp. 



Scirpiis olneyi Gray. 



Scirpu-s ealifor)iiciis (Meyer) Brittou. 



Yucca haccata Torrey. 



Agave pahncri Engelniaun. 



Atriplex sp. 



Argemotie platycerus Link and Otto. 



Rihes anreum Pursh. 



Mimosa (several species). 



Cassia leptocarpa Bentbani. 



Cassia irislizeni Gray. 



Fouquicria splcndeiis Engelniann. 



Populus fremontil Watson. 

 Acacia const ricta Bentbaiu. 



Eysenhardtia orthocarpa (Gray) Wat- 

 son. 

 Prosopis sp. 



Holacantha enioryi Gray. 

 Acer negundo Linnseus. 

 Sapindus marginatus Willdenow. 

 Bumelia rigida (Gray) Small. 

 Ccltis reticulata Torrey. 

 Chilopsis linearis (Cavanilles) Sweet. 

 Kicotiana gJauca Graham. 



Covillea tridentata (de Candolle) 



Vail. 

 Rhus toxicodendron Linnjieus. 

 Rhus trilohata Nuttall. 

 Cereus greggi Engelmann. 

 Opuntia (several species). 

 Baccharis glutinosa Persoon. 

 Perezia nana Gray. 

 Cuc.urbita fcctidissinia Humboldt, 



Bonpland, and Kunth. 

 Cuciirbita digitata Gray. 



Station No 26. — Near the mouth of Cajon Bonito Creek, Sonora, 

 Mexico. Altitude, 975 meters (3,199 feet). Cajon Bonito Creek, a 

 terminal twig of the Yaqui River, debouches into the San Bernardino 

 River 10 miles south of Monument No. 77 of the Mexican Boundary. 

 The Avriter, acompanied by Lieut. D. D. Gaillard, camped there from 

 August 31 to September 1. 1892, when driA'en out by the sudden flood- 

 ing of the valley, caused by a cloudburst at the head of the stream, m 

 the San Luis Mountains. I had experienced a similar occurrence in a 

 canyon at the head of the Cajon Bonito Creek, Avhere Col. J. W. Bar- 

 low and myself were encamped at the beginning of the storm season. 



Station No. 27. — ^Niggerhead, Cerro Gallardo. Monument No. 82. 

 Altitude, 1,374 meters (4,508 feet). Distance from the Rio Grande, 



