1896 | ROSE AMERICANA 23 
as well be a variety of R. pisocarpa with glabrous leaves, and 
appears to be identical with the X. pisocarpa of Nevada City, to 
which I have already alluded. 
Watson attributes to R. pisocarpa and R. Fendleri globular 
fructiferous receptacles, and to R. Californica ovoid receptacles 
narrowed above. Even if in the last the receptacles are almost 
constantly of that form, they may be sometimes globular, as, on 
the other hand, those of R. pisocarpa and R. Fendleri, in their 
turn, may be ovoid and narrowed above. Despite these varia- 
tions, perhaps we should retain for these species the characters 
drawn by Watson from the form of the receptacles. 
In comparing the diverse varieties which I include under the 
name &. Californica, with prickles curved or more or less hooked, 
and upper stipules and bracts narrow, one wonders whether sev- 
eral distinct specific types are not included under it, whose char- 
acters are not yet well known. For want of sufficiently abundant 
material I am compelled to reserve my judgment upon this ques- 
tion. I hope that the botanists of California, understanding the 
interest that attaches to the elucidation of R. Cadfornica, will be 
willing to send to me numerous specimens of that species, 
obtained from different parts of their country. 
Let us examine now the geographical distribution of the 
species. Watson says that it is found throughout California, 
ascending the mountains as far as 6,000 feet altitude; that it 
had been encountered in Oregon and Washington, and perhaps 
in British Columbia; and existed in western Nevada and extreme 
northern Lower California. This range traced by Watson seems 
to me to be incorrect at several points. The specimens which 
made him include Oregon and Washington in the range belong 
to R. pisocarpa. As for British Columbia, I believe that it is 
entirely foreign to R. Californica. 1 have received from Nevada 
a specimen obtained by Mr. Greene from Reno, in the Sierra 
Nevada, not far from the California boundary. San Diego is the 
southernmost point from which I have seen specimens. Perhaps 
towards the south it extends beyond California into Arizona. 
I have received from Mr. Greene some flowering specimens 
