1908] Grinnell—Biota of the San Bernardino Mountains. 37 
Urtica holosericea Nuttall. 
Nettles were abundant along streams wherever shaded by the 
alder canopy. They grew to be five or six feet tall, reaching that 
height by the middle of August, making it extremely disagree- 
able for the trout-fisherman. I saw nettles in Fish, Lost, and 
South Fork canons to 7500 feet altitude. 
Eriogonum fasciculatum Bentham. 
The wild buckwheat was abundant on hot dry slopes on the 
Pacific side of the mountains in the Lower and Upper Sonoran 
zones, not reaching quite the upper limits of the latter zone. The 
highest that I saw it was on the north side of the upper Santa 
Ana, at about 6000 feet. (See pl. 6.) 
Grayia spinosa (Hooker) Moquin. 
An abundant shrub on the desert around Cushenbury springs. 
Polygonum bistortoides Pursh. 
Abundant in small cienagas, around Bluff lake, 7500 feet, 
where specimens were taken, July 26, 1905. 
Polygonum amphibium Linnzus. 
Growing abundantly in the marshy east end of Bear lake, 
where large patches were in bloom the first of August, 1905. 
These pink areas were so bright as to be readily discerned from 
the summit of Sugarloaf, ten miles away. 
Spraguea umbellata Torrey. 
Bare open ground, Dry lake, 9000 feet; summit of San Ber- 
nardino peak, 10,600 feet; blooming in June and July. 
Aquilegia truncata Fischer & Meyer. 
The columbine was a conspicuous flower throughout the sum- 
mer along all shaded streams of the Pacifie slope above 5000 feet 
altitude, and up to 8000 feet on the upper South Fork. 
Clematis ligusticifolia Nuttall. 
Clematis came into profuse bloom along the upper Santa Ana 
as high as 6500 feet altitude, by August first. It clambered over 
willows and alders. 
