1908] Grinnell—Biota of the San Bernardino Mountains. 47 
Mimulus nasutus Greene. 
Abundant in cienagas at Bluff lake, and on the upper Santa 
Ana, 6000 to 8000 feet altitude, blooming in July. 
Mimulus pilosellus Greene. 
Blooming abundantly in small cienagas near Bluff lake. 
Specimens taken July 26, 1905, determined by Miss Eastwood. 
Orthocarpus pilosus Watson. 
This species was found only on the summit of Sugarloaf, 9800 
feet altitude, where it was collected in bloom, July 11, 1906. 
Pedicularis semibarbata Gray. 
Common throughout the Transition and lower Boreal zones, 
blooming in June and early July. Taken near the summit of San 
Bernardino peak, at Dry lake, on Sugarloaf, and along the upper 
Santa Ana, 6000 to 10,000 feet altitude. 
Pentstemon caesius Gray. 
Abundant in the lower Boreal zone, blooming in July; Sugar- 
loaf, 9800 feet; Dry lake, 9000 to 9500 feet; San Bernardino 
peak, 9000 to 10,000 feet. 
Pentstemon Bridgesii Gray. 
Fairly common in the region of the upper Santa Ana, where 
its blossoms appeared the last of July; more common in the arid 
Transition, as around Gold mountain, where specimens were taken 
August 26, 1905. 
Pentstemon labrosus Hooker. 
The scarlet bugler was the most abundant and conspicuous 
pentstemon in lower Transition and Upper Sonoran zones, where 
its briliant flowers appeared about the first of July. 
Pentstemon Palmeri Gray. 
An abundant lower Transition plant in the region of the upper 
Santa Ana, blooming June 25 to July 15. 
