412 BOTANICAL GAZETTE _ [DECEMBER 
BACCHARIS PILULARIS DC. 
This is the most abundant shrub in the country about Palo Alto, 
growing practically everywhere. If B. consanguinea DC. is a dis- 
_ tinct species, it does not grow here. The leaves (of B. pilularis) 
vary greatly from plant to plant, and also on the same plant. The 
size of the leaf varies on every plant with the order of the branch it 
is borne on; which made it so difficult to select a considerable num- 
ber of leaves from different plants that as a whole should be fairly 
comparable that I did not try to make a table, but have preferred to 
reproduce the largest leaves from a few plants in a figure. Fig. 5 
shows the largest leaf of each of seven plants. Of two of these 
Woo) jo? y 
Fic. 5.—Baccharis pilularis: largest leaves of seven bushes. 
plants two leaves each are drawn, to show the difference in shape- 
Of these seven, the most exceptionally large leaf, on its own plant eas 
the smallest of the lot, the most of the leaves on that plant being 
like those on the twig figured. 
-CEANOTHUS soREDIATUS H. & A. 
The two commonest and most ubiquitous species of this genus 
about Palo Alto are C. sorediatus H. & A. and C. cuneatus Nutt. 
The latter is the common one of the valley and is rather the more 
variable, but I have not material to illustrate its variation in any one 
place. The plants of C. sorediatus from which jig. 6, a was made 
were collected in a small patch more than half-way up the moun- 
tain south of Woodside. Each leaf drawn was the largest © 
branch. Beside the difference in size and shape, there is a0 eet 
rupted variation, which my figure only suggests, from the sae 
form, which I suppose gives the species its name, to on€ with pa 
entire leaves; and variation on the individual plants as well as bere’ 
them. 
t on its 
