NATIVE AMEEICAN" 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 as a 

 dwarf stock for the peach, which, on this stock, attamed a height 

 of 5 feet. Writing many years earher, A. S. FuUer (25, p. 184-185) 

 says: 



A few years ago, through the kindness of Prof. George Thnrber, I received some 

 cherry seeds from Utah Temtory, 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, Jklr. Fuller says : 



Here is an opportimity for the enterprising and skillful horticulturist to revolu- 

 tionize cheiTy cultui-e, 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 anyw^here on the western 

 slope of the Rocky Mountains. The seeds mentioned by Fidler 

 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 tune 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 hesseyi 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. hesseyi with well-marked leaf serrations. From the descrip- 

 tion P. rosebudii must also be this species. 



