48 



NATL. ARBORETUM CONTRIB. NO. 2, U.S. DEPT. AGR. 



cv. Mount Arbor Special* 



M . pumila var. niedzwetzkyana — 



M. baccata 



cv. Hopa : 



M. baccata 



cv. Mount Arbor 



Special 1 



cv. Red Silver- 

 M. pumila var. niedzwetzkyana — I 



An open pollinated seedling of M. cv. Hopa*, probably crossed 

 with M. cv. Red Silver. Syn : M. cv. Mount Arbor. 



Originated about 1937 at Mount Arbor Nurseries, Shenandoah, 

 Iowa. Selected by G. L. Welch, former president of Mount Arbor 

 Nurseries, and introd. in 1939. Disease free (41). 



Description : Flowers ; single, expanding buds carmine, open 

 reddish pink. Fruit; purplish red, approx. 2 cm. in diam. 



Location: (C). 



cv. Muskoka 



M. pumila var. niedzwetzkyana X M. baccata. 16 



Introd. by the Central Experimental Farm, Canada Dept. of 

 Agr., Ottawa, Ontario, Canada. Originated from a cross made 

 in 1920 by Miss Isabella Preston. Named in 1930 for Muskoka 

 Lake in southern Ontario, Canada. 



Description: Flowers; single, expanding buds carmine, open 

 pink, approx. 2.5 cm. across. Fruit; dark red, approx. 2.5 cm. in 

 diam. 



Location: (I). 



cv. Namew 



M. pumila var. niedzwetzkyana X M. baccata. Syn: M. cv. 

 Nameu. 



Introd. by the Central Experimental Farm, Canada Dept. of 

 Agr., Ottawa, Ontario, Canada. Originated in 1921 from a cross 

 made by Miss Isabella Preston. Named for Namew Lake in 

 Saskatchewan, Canada. 



Description: Flowers; single, expanding buds reddish purple, 

 open pink, approx. 5 cm. across. Fruit; dark red, approx. 2.5 cm. 

 in diam. 



Locations: (H), (I). 



1G The M. baccata species used in this cross originally came from Ludwig 

 Spath Nurseries, Berlin, Germany, in 1903 as M. baccata cv. Jenensis, along 

 with several others selected for the varying leaf and fruit shapes. This par- 

 ticular plant has since been identified as M. baccata Borkh. 



