146 NORTH AMERICAN FAUNA. [No. 16. 
Silene suksdorfi Robinson.’ Alpine Catchtly. 
An alpine species common in scattered tufts, which form small com- 
pact mats under the edges of rocks, well above timberline. Often 
mixed with Hrigeron compositus. (Identified by Dr. B. L. Robinson.) 
Aconitum columbianum Nutt. Monkshood. 
Common in a marshy place in the Shasta fir forest at Wagon Camp, 
where its tall wands of handsome blue flowers were conspicuous in July 
anil its fruit in September. 
Aquilegia truncata Fisch. & Mey. Red Columbine. 
Common near Wagon Camp, in the upper part of the Transition 
zone. (identified by Professor Greene.) 
Delphinium sonnei Greene. Larkspur. 
Common in moist spots in the Shasta fir forest near Wagon Camp, 
and also in the canyon of Ash Creek. (Identified by Professor Greene.) 
Peonia browni Dougl, Wild Pwony. 
Occurs sparingly in the upper part of the ponderosa pine forest 
(Transition zone), particularly in the neighborhood of Wagon Camp. 
Pulsatilla occidentalis Watson. 
Common in places on the higher slopes (Hudsonian zone), particu- 
larly where the snow lies late. It blooms as the snow recedes, leaving 
a handsome globular head of feathery plumes which waves in the 
breeze long after the season of flowering. 
Bikukulla uniflora (Kellogg) Howell. 
Reported by Miss Eastwood from above timberliue on Horse Camp 
Trail; not found by us. 
Arabis platysperma Gray. Flat-pod .\rabis. 
The commonest and most widely distributed crucifer of the higher 
slopes of Shasta, where it occurs on stony slopes and along the edges of 
the heather beds from the lower edge of the Hudsonian zone upward 
on warm slopes to 10,200 feet. Its extreme vertical range appears to be 
about 3,000 feet. (Identified by Miss Eastwood.) 
Cardamine bellidifolia pachyphylla Coville. 
This small alpine crucifer, with white flowers and rather broad dark 
green leaves, is nowhere abundant, but was observed here and there 
above timberline, both on the main peak of Shasta and on Shastina. 
(Identitied by F. V. Coville.) 
Cheiranthus perennis (Coville) Greene. [=Hrysimum asperum perenne 
Coville. ] 
Vernon Bailey and I found this coarse yellow-flowered crucifer at 
timberline on the north slope of Shastina July 24, but did not observe 
it elsewhere. (Identitied by Professor Greene.) 
1 Botanical Gazette, vol. 16, p. 44, pl. 6, 1891. 
