60 Greene Some West American Red Cherries. 



Known only from the vicinity of Mt. Shasta, California, the specific type 

 being best represented in a sheet collected on the south side of Mt. Shasta. 

 July, 1897, by H. E. Brown, being sheet No. 324,667, U. S. Herb. In this 

 the diminutive spiraea-like leaves are of the smallest, and the stones, of the 

 drupes are perfectly smooth, though less emphatically acute than in those 

 collected by Mr. Pringle somewhere in the same general region, August 28, 

 1882. In his specimens the stones, which are very acute, are a little larger, 

 and show at base the hints of rugosity described. Other specimens from 

 " Mt. Shasta and vicinity " were collected by Dr. Palmer in July, 1892, but 

 these are past flowering, yet without mature fruit. 



Cerasus obtusata sp. nov. 



Shrub stoutish and with rather rigid copiously leafy branches, and gla 

 brous in all its parts; leaves of fruiting branches narrowly obovate, obtuse, 

 near emarginate, very obscurely subserrate-crenulate, 1 to 1| inches long, 

 only the midvein prominent, seldom with even a faint trace of one supra- 

 basal gland ; corymbs short, subsessile, about 4-flowered ; flowers not seen ; 

 drupe scarlet, subglobose ; stone ovate, even broadly so, 2 J lines long, ab 

 ruptly acutish at apex, marked with a few prominent though not acute 

 rugosities. 



The type is from Silvies, on the border of the arid interior of southeast 

 ern Oregon, by David Griffiths and E. L. Morris, August, 1901, sheet No. 

 402,822, U. S. Herb. The only other specimens of Cerasus from this climatic 

 region seen by me are from Steins Mountains, both collected in 1896, one 

 by Mr. Coville, the other by Mr. Leiberg. They are evidently from differ 

 ent sections of this isolated mountain range, and seem as if representing 

 each another species ; but the specimens were taken at the wrong season 

 of the year for showing either flowers or fruit. They are past flowering 

 altogether, while in neither is the fruit full-grown. 



C. emarginata, the counterpart of C. obtusata in northern Oregon and 

 Washington, is not glabrous, its leaves are comparatively narrow and twice 

 as large, also emarginate, and with well developed suprabasal glands, while 

 its nucleus has never been described as otherwise than smooth. 



Cerasus trichopetala sp. nov. 



Stoutish branches glabrous, the younger red and shining, the older gray; 

 leaves at flowering time obovate-elliptic, very acute, about 1 inches long, 

 obscurely subserrate-crenulate, glabrous ; flowers large, in subsessile cor 

 ymbs of about 5, the rachis, pedicels and calyx glabrous, the large round- 

 obovate petals appressed-villous externally at base and up and down the 

 middle part; mature foliage not seen; stone obliquely ovoid, the thick 

 ventral margin much elevated, the rugosity obtuse, low, obscurely reticu 

 late. 



Type in U. S. Herb., from Columbia Falls, Montana, by R. S. Williams, 

 in flower May 24, 1894. 



