38 University of California Publications in Zoology. (Vou. 
Delphinium gracilentum Greene. 
A blue larkspur was abundant in the Upper Sonoran and 
Lower Transition zones along the upper Santa Ana on dryish 
slopes, blooming in June. 
Ranunculus oxynotus Gray. 
This beautiful buttercup was collected at the edge of a snow- 
bank on a rock slide on the north face of San Gorgonio peak, 
10,500 feet, July 16, 1906. 
Umbellularia californica (Hooker & Arnott) Nuttall. 
The bay tree was observed only in Mountain Home canon at 
the upper edge of the Upper Sonoran zone. It was not abundant. 
Argemone platyceras hispida (Gray) Link & Otto. 
This prickly poppy was met with only along the upper Santa 
Ana on dry open gravel beds, 5000 to 5600 feet altitude, nearly 
to Big Meadows. 
Draba corrugata Watson. 
Common in the Upper Transition and Boreal zones; summit 
San Bernardino peak, summit San Gorgonio peak, Dry lake, Fish 
ereek, ete., T7000 to 11,480 feet altitude. 
Erysimum asperum De Candolle. 
One of the most abundant and conspicuous flowers through- 
out the pine woods of the Transition zone, blooming in June and 
early July. Seen as high as Dry lake, 9000 feet; also down into 
Upper Sonoran. 
Ribes cereum Douglas 
Abundant in the upper Transition zone on mountain sides; 
specimens taken at Dry lake, 9000 feet, and on Sugarloaf, 9500 
feet. 
Ribes ascendens jasperae EKastwood. 
Abundant alone Fish creek, Lost creek, and South Fork, 6500 
to 7000 feet altitude; blooming from the middle to the last of 
June. 
