IN THE SANTA SUSANNA MOUNTAINS 
On the morning of June 15th our honored secretary and the writer 
set oat on a tour of exploration in the, to us, hitherto unknown regions 
of the Santa Susanna mountains. Mr. Grinnell assumed command and 
enrolled himself as Entomologist of the expedition while the writer 
took the no less exalted office of Botanist. 
IvCaving the car at Owensmouth we passed as rapidly as possible 
through the settled portions of the valley, including the town of Chats- 
worth, pausing only to note the number of oaks {Quercus lobata, Nee.) 
about Chatsworth, we hastened to the wild and rocky hills north of 
that place. This region should prove of intense interest to our geolo- 
gists, who were, unfortunately, not represented in the expedition. 
The first ridge was not difficult to conquer, and a little before noon 
we found ourselves beside a nice stream of water in Devil's Canyon. 
We had collected a number of plants and here we found a total stranger. 
It was not, as Mr. Grinnell fondly hoped, an undescribed species, but 
seems to be Andihertia nivea. After some discussion as to which direc- 
tion to proceed, we went up the canyon a short distance, where we 
discovered what appeared to be a somwhat easy pass across the ridge 
into Brown's Canyon, which was our objective point for that day. The 
pass proved to be quite difficult, but after strenuous climbing and 
clambering we finally reached Brown's Canyon. Here I want to note 
that in this pass w^e saw some of the finest specimens of Dudleya pul- 
verulenta nit.) B. &R., that it has ever been my pleasure to come 
across. Here we saw the only ferns noted in the trip. 
After reaching Brown's Canyon we rested awhile, as we were 
pretty tired, then went up the canyon in search of a camping place for 
the night. We found a very pleasant grove of live oaks with a grassy 
space, where we spread our blankets and turned in rather early. It 
wasn't as restful as my own bed at home, but we managed to sleep, 
and early in the morning were up preparing to climb to the summit of 
the Santa Susanna ridge. This climb was not as strenuous as the one 
of the previous day, and before nine o'clock we were at our objective 
point, a fine clump of Quercus lohata that shows plainly on the sky-line 
from many points in the valley. Descending to our camp we came 
down the canyon to Chatsworth, where we separated, Mr. Grinnell 
continuing his explorations and the writer returning home. 
While we did not collect any ferns, we noticed the following : 
Chetlanthes californica (Nutt.) Mett. P. ornithopus Hook. 
Pellaea andromedaefolia (Kaulf.) Fee. 
