426 BLANCHARD: RUBUS OF EASTERN NORTH AMERICA 
of three species, when northern kinds follow down the Alleghany 
Mountains. They may be divided into three classes and with 
each species is given its general range. 
HIGH BLACKBERRIES 
RUBUS CANADENSIS L. Newfoundland to Manitoba. 
RUBUS ALLEGHANIENSIS Porter. Prince Edward Island to Minne- 
sota. 
Rusus ANDREWSIANUS Bld. Southeastern Massachusetts to 
Oklahoma. 
DEWBERRIES 
Rusus utspipus L. Prince Edward Island to Minnesota. 
RUBUS PROCUMBENS Muhl. Portland, Maine, to Oklahoma. 
RUBUS TRIVIALIS Michx. Southeastern Virginia to Texas. 
HALF HIGHS 
RUBUS RECURVANS Bld. Maine to Iowa. 
RUBUS CUNEIFOLIUS Pursh. Connecticut to Texas. 
RUBUS CANADENSIS L. 
R. Millspaughii Britton. 
The only description of this species that is sufficiently com- 
plete to be of much value is the one from my pen published in 
Rhodora 10: 117. 1908, and no figure of it that has vet appeared 
gives any clear conception of the species, though a colored illus- 
tration was given in Curtis’s Botanical Magazine for July 1909. In 
fact no single figure can well illustrate a blackberry, unless it cover a 
large folio page and is drawn toa rather small scale so as to give an 
idea of the whole plant or a considerable part of it; and even then it 
needs an accompanying set of figures showing natural size. The 
southern limit of this species is near the northern boundary of 
Massachusetts, or near the 43d parallel of north latitude, though 
it crosses Wisconsin and Michigan at a higher latitude; and it 
follows down the Alleghany Mountains into North Carolina and 
Tennessee. It is exactly the same plant in the west as in the east. 
I collected twice in the same season in the northern part of the 
southern peninsula of Michigan, when in flower and in fruit, and 
