148 NORTH AMERICAN FAUNA. [No. 16. 
Peltiphyllum peltatum (Torr.) Engler. Giant Water Saxifrage. 
One of the most conspicuous plants in the bottom of the Sacramento 
Canyon, where its clusters of huge incised roundish leaves along the 
water’s edge suggest the devil’s club. It ranges along the Sacramento 
River from just below Sisson nearly to the Sacramento Valley. 
Ribes amictum Greene. 
Occurs at Wagou Camp, along Squaw Creek, and in the bottom of Mud 
Creek Canyon at an altitude of 6,700 feet. (Identified by Professor 
Greene.) 
Ribes cereum Dougi. 
Found near timberline near the head of Panther Creek, and also 
much lower down. 
Ribes viscosissimum Pursh. 
Common near Wagon Camp and observed at other points within the 
Transition zone, particularly along Squaw Creek. 
Ribes klamathense Coville. 
Occurs in cool moist places in the Transition zone at Sisson. (Iden- 
tified by F. V. Coville.) 
Cercocarpus ledifolius Nutt. Mountain Mahogany. 
Common on Sheep Rock and thence to the southeastern corner of 
Shasta Valley (V. Bailey), and on warm, dry slopes of the Scott 
Mountains, where C. parvifolius also occurs. 
Fragaria bracteata Heller. Small Strawberry. 
Common on the lower slopes. Just below Wagon Camp strawberries 
and painted cups are so abundant as to form an almost continuous car- 
pet under the uppermost grove of ponderosa pines. (Identified pro- 
visionally by P. A. Rydberg.) 
Fragaria chile msis Duchesne. Large Strawberry. 
Occurs with the last a little below Wagon Camp, but is much com- 
moner lower down, particularly near Sisson. Sisson Tavern was 
formerly called ‘Berryvale’ and is located in ‘Strawberry’ Valley. 
Both names were derived from the abundance of this wild fruit there 
in early days. (Identified provisionally by P. A. Rydberg.) 
Holodiscus discolor (Pursh) Maxim. Alpine Spirza. 
Common on rocks at and a little below timberline, usually associated 
with Pinus albicaulis. It is a small, fragrant bush, usually less than a 
foot in height, and always grows amony rocks at high altitudes. In 
the Hudsonian zone it was found all the way around the mountain, and 
was in blossom from about July 20 until September. A larger form, 
which the botanists do not appear to have named, occurs lower down, 
in the Canadian zone. It has larger, broader, and thinner leaves and 
should be separated. 
