Davis 9 1946 Foot of Crystal Creek, 5010', N. Side San Bernardina Mts., San Bernardino Co., Calif. May 4, 1946 way 18 to this locality, the terrain was even more typical desert, vegetation including Larrea divaricata, Cereus sp., and Cholla Cactus. The main purpose of our visit to this locality was to search for Eusatia croceata, of which Edmund Jaeger had taken 1 specimen at Crystal Creek in October, 1927. Stellbrink & I star- ted up Canyon at about 1 P. m. The country changed almost as soon as we left the Ranch area. Q. chrysolepis was abundant, and a few hundred feet up the canyon we ran into our first Jun- cuse Cedar in the canyon bottom. Crystal Creek is on the average about 4' wide + 8" deep + is an all-year stream. The water is clear + cold + contains some mineral (CaCO3?) which forms a heavy deposit on the rocks in the stream bed. We turned over a few logs on the way up, but the ground beneath them was quite dry. However, the Juncuse Cedar grew more abun- dant, + the trees larger. At 5700', Bob found the first E. croceata beneath a cedar log, and within a few minutes he had found another, and I had found two, which I turned over to him, all of the