“Evidently allied to P. _subcordata_, but leaves little more than an inch long, subcoriaceous, pubescent on both faces, in outline oval or broadly elliptic, never subcordate, commonly acutish at both ends, serrulate; flowers unknown; fruits in pairs or threes, on pedicels one-half inch long or more, densely tomentose when very young, more thinly so, yet distinctly tomentulose when half-grown. “Known only from specimens collected on the Yanex Indian reservation in southeastern Oregon, by Mrs. Austin, in 1893; and a most remarkable species, as connecting true _Prunus_ with _Amygdalus_. But that it is a plum and not an almond is evident.” Without any first-hand knowledge of this species it is thought best to consider it only under the allied species, _Prunus subcordata_. =PRUNUS SUBCORDATA KELLOGGII= Lemmon =1.= Lemmon _Pittonia_ =2=:67. 1890. =2.= Wickson _Calif. Fr._ Ed. =2=:51. 1891. =3.= Greene _Fl. Francis_ =1=:50. 1891. =4.= Bailey _Cyc. Am. Hort._ 1448. 1901. _Prunus subcordata kelloggii_, named in honor of Dr. Albert Kellogg, an early explorer and settler in California, is distinguished from the species in being a somewhat taller and more slender plant.[130] The branches and bark are of a characteristic ash-gray, so distinct in color from _Prunus subcordata_ that this is often called the “Gray-branch” plum. The leaves are orbicular or elliptical, not cordate, cuneate at the base and nearly glabrous. The fruit is bright yellow instead of red and larger than that of the species, being an inch or more in diameter with a more nearly free stone. This plum inhabits the region of Mount Shasta where it has been known since the time of the early gold diggers, attracting more attention as a food, and promising more for the cultivator than Subcordata. Botanists seem to have given this plum comparatively little attention and careful study may give it specific rank. Locally, and now somewhat in the trade, it is known as the Sisson plum, after a Mr. Sisson, living near Mount Shasta, who has brought it to notice. At present the Kelloggii seems to be the branch of promise for the improvement of the wild plums of the western coast. =15. PRUNUS UMBELLATA= Elliott =1.= Elliott _Sk. Bot. S. C. and Ga._ =1=:541. 1821. 2. Sargent _10th Cen. U. S._ =9=:67. 1883. 3. Ibid. _Sil. N. Am._ =4=:33. Pl. 155. 1892. =4.= Waugh _Plum Cult._ 91. 1901. =5.= Mohr _Cont. U. S. Nat. Herb._ =6=:551. 1901. _Cerasus umbellata_. =6.= Torrey and Gray _Fl. N. Am._ =1=:409. 1840. Tree low, sometimes a shrub, seldom over twenty feet in height; trunk short, usually crooked, attaining a thickness of ten inches; bark dark brown and scaly; branches spreading, slender, twiggy but spineless; branchlets at first pubescent but becoming glabrous, bright red turning dark brown the second year; lenticels few, oblong, yellowish.