VOLUME XXXVIII NUMBER 6 
BOTANICAL GAZEEEE 
DECEMBER, 1904 
THE VARIATION OF SOME CALIFORNIA PLANTS. 
EDWIN BINGHAM COPELAND. 
(WITH NINE FIGURES) 
I. 
ONE of the first features of the flora of the mountainous and 
rather dry parts of California to impress one familiar with that of 
the fastern states and the Mississippi valley is the exceeding — 
bility of a great many of the plants. While every botanist going into 
this field must have been struck by this fact, and some have remarked 
UPON it, as JEPSON well does in the introduction to his Botany oj M iddle 
Western Calijornia, it has never been the subject of any particular 
study, 
; The 800d material for such work is practically unlimited; but my 
lime has not been so, and it has seemed to me that the study of a few 
Plants Ought to show what is most characteristic of variation in this 
Plausible explanation of the great local variability, and at the same 
- Pants of wide occurrence, and of a few apparently monstrous — 
8nd the lesser variations connecting them with normal forms. ine 
f? Plants selected are several oaks growing near P alo _ 
“; and Rhamnus californica, Arctostaphylos tomentosa, se 
401 
RR Sabet ee 
a 
