150 UNIVERSITY OF MISSOURI STUDIES [298 



583. R. Maximilian! Nees. MAXIMILIAN'S ROSE. 

 Gregory Canon, 5800-6500 ft. (Daniels, 190). 

 SASKATCHEWAN to WASHINGTON ; COLORADO to UTAH. 



Family 59. MALACEAE Small. Apple family. 



237. AMELANCHIER L. SHADBUSH. 



584. A. polycarpa Greene. MANY-FRUITED JUNEBERRY. 

 Mountainsides from Eldora to Arapahoe Peak, where it 



occurs at timberline, 8600-11500 ft. (Daniels, 909). 

 WYOMING to COLORADO. 



585. A. elliptica A. Nels. ELLIPTICAL-LEAVED JUNEBERRY. 

 Sugarloaf Mountain (Ramaley). 



SOUTH DAKOTA to COLORADO. 



586. A. alnifolia Nutt. ALDER-LEAVED SHADBUSH. 

 Sunshine Canon and Eldora (Ramaley). 

 NORTH DAKOTA to MONTANA; COLORADO to UTAH. 



587. A. oreophila A. Nels. MOUNTAIN SHADBUSH. 



Mesas and foothills, common, 5700-8100 ft. (Daniels, 501). 

 WYOMING to COLORADO. 



238. CRATAEGUS L. HAWTHORN. 



588. C. occidentaJis Britton [C. Colorado Ashe]. WESTERN 

 HAW. 



Banks of gulches in the mesas and lower foothills, 5700- 

 6000 ft. (Daniels, 835). 

 COLORADO. 



589. C. Coloradensis A. Nels. COLORADO HAW. 



Banks of gulches in the mesas and lower foothills, 5700- 

 6000 ft. (Daniels, 767). A form from the entrance to Gregory 

 Canon (Daniels, 838) has the petioles not distally widened. 



NORTH DAKOTA to MONTANA ; NEBRASKA to COLORADO. 



