Greene — Some West American Red Cherries. 57 



alH)Ut Ij inches loiifj: iiicludinj: the slender and not very short petiole, ob- 

 tuse or acntish, never enuirginate, obviously and evenly crenulate, neither 

 glabrous nor yet very distinctly puberulent, only the midvein conspicuous, 

 basal gland rarely one and small, usually none, those of sterile shoots 2 

 inches long or more, exactly lanceolate, acute, subserrate-crenulate, usually 

 with 2 small but well developed glands at the junction of blade and petiole ; 

 corymbsshort-peduncled,4-flowered,pedicelsandrachis minutely hirtellous; 

 calyx with glabrous campanulate tube and somewhat hairy truncate or 

 eniarginate, often more or less erose teeth ; drupes ovoid ; stone ovoid, 

 2i or 8 lines long, obtuse at both ends, obtusely and rather obscurely low- 

 rugose. 



INIogollon Mountains, New Mexico, at 8,000 feet, Aug. 23, 1903, O. B. 

 Metcalfe, as to the fruiting specimens, tliose in my herbarium to be taken 

 as the type. The flowering specimens are from a not far distant locality 

 in the Black Range, by the same collector, in the spring of 1904. The half 

 grown leaves of these have a somewhat obovate-oblong outline, and it is 

 possible that they may prove to be of another species. 



Cerasus arida sp. nov. 



Evidently a low shrub, the stout branches remarkably naked as to 

 foliage, the bark of a dull dark-brown ; leaves and flowers borne very 

 sparsely along short lengths of the season's growth of the main branches, 

 or a few on some of the stout gnarled lateral branchlets, but these mostly 

 only leafy ; all parts glabrous ; leaves rather dull-green, 1 to lo inches long, 

 obovate-oblong, obtuse or acutish, very faintly subserrate-crenulate ; glands 

 at the very base of the blade large and obvious though often one only ; 

 corymbs often represented by a solitary pedicel and flower, the largest only 

 about 5-flowered ; calyx-tube sub-campanulate ; petals small; fruit un- 

 known. 



Borders of desert at eastern base of the San Bernardino Mountain, Calif 

 S. B. Parish, June, 1894. In the nakedness and gnarled aspect of this 

 shrub it recalls the genus Peraphylliua. Some of the lateral twigs an inch 

 long represent a six or seven years' growth. 



Type in U. S. Herb. 



Cerasus prunifolia sp. nov. 



Shrub stout and rigid, the short l)ranches grayish and glabrous after the 

 second season, at earlier stages very glaucous, as well as minutely hirtel- 

 lous-villous, this pubescence also clothing the rachis of the short and almost 

 corymbose 5 to 8-flowered raceme, as also the pedicels and calyx ; small 

 early leaves round-oval, 1 inch long, the later ones exactly obovate, short- 

 petioled, 1] to 2', inches long, 1] inches broad above the middle, obtuse or 

 acutish, crenulate, glabrous above, hairy beneath along the veins, less so 



