NATIVE AMERICAN SPECIES OF PRUNUS. 69 
the stream named above. This species has been quite extensively 
experimented with at the Minnesota and South Dakota Agricultural 
Experiment Stations and. in Wisconsin. E. S. Goff (27) used it asa 
dwarf stock for the peach, which, on this stock, attained a height 
of 5 feet. Writing many years earlier, A. S. Fuller (25, p. 184-185) 
says: 
A few years ago, through the kindness of Prof. George Thurber, I received some 
cherry seeds from Utah Territory, and from them raised plants which appear to be 
of the same species * * * P. pumila. There is, however, considerable difference 
in the growth of the plants; the one grown from the seeds obtained from Utah being 
more erect, none of the branches trailing as in the species. 
Discussing the question of crossing this species with the cultivated 
cherry, Mr. Fuller says: 
Here is an opportunity for the enterprising and skillful horticuiturist to revolu- 
tionize cherry culture, and he who first produces a fruit equal to the Great Bigarreau, 
or Early Richmond cherry, and borne upon a shrub no larger than a currant bush 
* * * will be very likely to gather golden harvests for his labor. 
It seems rather doubtful that this species is really found wild in 
Utah. The only specimen seen from Utah was collected by Dr. 
Edward Palmer, probably in 1870, though the specimen is labeled 
1869. Dr. Palmer, it appears, collected only in the vicinity of St. 
George, in the extreme southwestern part of the State, and while 
there he was the guest of Mr. Johnson, with whom the Utah hybrid 
is supposed to have originated. It is almost certam, therefore, 
that Dr. Palmer’s specimen was from the garden of Mr. Johnson’s 
former home. Recent collectors in the State do not find the species, 
and it is very improbable that it is found anywhere on the western 
slope of the Rocky Mountains. The seeds mentioned by Fuller 
as having been obtained by Prof. George Thurber in Utah may also 
have come from Mr. Johnson’s garden. It does not appear that 
Dr. Thurber was ever in Utah, and the seeds were probably received 
by correspondence during the time he filled the chair of botany and 
horticulture at the Michigan Agricultural College or soon after 
assuming the editorship of the American Agriculturist, in 1863. 
It should be noted also that from 1850 to 1861 Utah Territory 
embraced the western portion of what is now the State of Colorado, 
and while Prunus besseyi is not known to occur even within that 
area, it does occur at not a great distance east of the old boundary, 
and seeds from such a locality may have been wrongly ascribed to 
Utah. 
An original specimen of Prunus prunella has been seen, and it is 
only P. besseyi with well-marked leaf serrations. From the descrip- 
tion P. rosebudii must also be this species. 
