ROSACEAE 127 



3. Rosa miximiliani Nees. 

 Rosa woodsii Lindl. 



Prairies in the northwestern part of the state. Red Cloud; Belmont; 

 Hat Creek Basin; Scotts Bluff County; Valentine; Wood Lake. 



4. Rosa fendleri Crepin. 



In the northwestern part of the state. Belmont; Cherry County; 

 Cheyenne County; Indianola; Deuel County; Sheridan County; Valen- 

 tine. 



5. Rosa setigera Michx. 



Woods and thickets in the southeastern part of the state. Nemaha; 

 Richardson County; Weeping Water. 



10. Opulaster. 491. 



1. Opulaster opulifolia (L.) Kuntze. Ninebark. 



In thickets near streams in the northeastern part of the state. Cams; 

 Long Pine. 



11. Malus. 516. 



1. Malus ioensis (Wood.) Britton. Western Crab Apple. 



In woods mostly along the Missouri River. Ainsworth; Nemaha; Pad- 

 dock; Peru. 



12. Crataegus. 518. 



Leaves with a broad truncate or cordate base, flowers 1.5-3 cm. broad. 



1. C. mollis. 

 Leaves with a narrow or cuneate base, flowers 10-16 mm. broad. 



Leaves glabrous or nearly so beneath. 2. C. occidental is; 



Leaves pubescent especially along the veins beneath. 



3. C. tomentosa. 



1. Crataegus mollis (T. & Gr.) Scheele. 



In woods in the southeastern part of the state. Bellevue; Lincoln; 

 Nemaha; Saltillo. 



2. Crataegus occidentalis Britton. 



River banks in western Nebraska. Custer County; Grand Rapids; 

 Halsey; Kirkwood; Valentine. 



3. Crataegus tomentosa L. 



In woods along streams in the eastern part of the state. Jamaica; 

 Omaha; Peru. 



13. Amelanchier. 517. 



Leaves serrate nearly to the base. 



Young leaves nearly glabrous, soon becoming completely so, calyx 

 usually glabrous. 1. A. canadensis. 



Young leaves and calyx densely white-tomentose, sometimes be- 

 coming nearly glabrous when old. 2. A. botryapium. 

 Leaves dentate above the middle only, 3. A. ainifolia. 



1. Amelanchier canadensis (L.) Medic. June or Service Berry. 



Along streams in the southeastern part of the state. Nemaha; Ne- 

 braska City; Peru; South Bend; Wahoo; Weeping Water. 



