64 BULLETIN 179^ U. S. DEPAETMENT OP AGRICULTUEE, 



tions due to differences in the conditions under which it is found in its 

 wide range. 

 So far as known, the species has not been utilized in horticulture. 



Pkunus Emarginata Villosa Sudworth. 



Cerasus mollis Dougl., 1834, in Hook. Fl. Bor. Amer., v. 1, p. 169. 



Prunus mollis Walp., 1843, Report Bot., t. 2, p. 9. (Not P. mollis Torr., 1824.) 



Cerasus erecta Presl., 1849, Epim. Bot., p. 194. 



Prunus erecta Walp., Ann. 3: 854, 1852-53. 



Cerasus pattoniana Oarr., 1872, in Rev. Hort., Ann. 44, p. 135, fig. 17. 



Prunus emarginata mollis Brewer, 1876, in Brewer and Wats. Bot. Calif., v. 1, p. 



167. 

 Prunus emarginata villosa Sudw., 1897, U. S. Dept. Agr., Div. Forestry Bui. 14, 

 p. 240. 



Leaves obovate to oval, 2 to 7 cm. long, or on vegetative shoots 

 sometimes even 10 cm. long, 2 to 3 cm. broad, narrowed or cuneate 

 at the base, obtuse or sometimes emarginate at the apex, more or less 

 pubescent, at least on the lower surface. Flowers as in the species, 

 except for the rather strongly pubescent pedicels and calyx tube, and 

 the petals also more conspicuously pubescent. Fruit similar to the 

 species. 



The tree is 30 to 40 feet high with well-defined, straight trunk 

 in the most favorable situations, the young twigs rather strongly 

 pubescent. 



This form is known to occur from the southern coast of Vancouver 

 Island and southern British Columbia west of the mountains south- 

 ward to southern Oregon. In the southern part of its range it occurs 

 at an altitude of 4,000 feet, while in the north it is found only at low 

 altitudes. 



It was originally described from ' ' near the mouth of the Columbia, 

 and on subalpine hills, near the source of that river, Douglas; Fort 

 Vancouver, Dr. Scouler." The specimens from near the source of the 

 Columbia probably belong to the species. Cerasus erecta was 

 described from Nootka Sound and from the description is plainly this 

 form. Cerasus pattoniana was sent to the Museum d'Histoire 

 Naturelle, Paris, about 1865, by M, MacNab and is supposed to have 

 come from northwest America, the exact locality being unknown; 

 from the description and figure it is also this form. While Prunus 

 emarginata villosa is quite unlike the species in habit and general 

 appearance, it undoubtedly merges gradually with the species. More 

 or less pubescent forms occur at various localities in California and in 

 Arizona, but they are apparently of the smaller leaved, shrubby plant 

 and are therefore referable to the species rather than to the subspecies. 



This form has apparently not been utilized in pomology, but is 

 sometimes planted as a shade tree and has been so used in Portland, 

 Oreg. 



