throughout its range. It seems, rather, to be restricted to some- 
what isolated localities where it thrives in such great abundance 
that it fo i 
a foot in height decidedly dominates the t m - 
ception of this can be gained from the photographs re, uced 
n the accompanying plate. On acc of ial habit 
and its evergreen nature, su gro is noticeabl rough- 
out the Ww the plants are in full bloom the profusion 
of flowers gives a veritable sea of color all the more conspicu- 
ous beca' he species grows best on dry rocky hills: or 
se 
this species along Johnson n’s Creek just outside the city limits of 
7 : ‘ 
r 
more scattered and less numerous than along Johnson’s 
reek. 
Perhaps the best development that is to be found throughout 
the range of this species is to be seen on what is known as the 
Serpentine Barrens of een Chester Cine. Pennsylvania. 
There the species covers about one hundred contiguous acres 
with a dense mat aa It is difficult to conceive of a more 
ment is rT mor Ura it 
with the full bloom of the flowers, the gah red hues of the 
hills are visible for a distance of several miles. 
The writer visited this locality on oe, 8, 1916, in the company 
of Dr. F. W. Pennell and Mr. James R. Pennell. It was an 
ideal May day and the phlox was in fall bloom with a brilliance 
