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



cv. Guiding Star* 



A chance seedling of unknown parentage. 



Discovered and named by Arie F. den Boer of Des Moines, 

 Iowa. Formerly den Boer sdlg. 54-1. Introd. into cultivation in 

 1963 by Wayside Gardens, Mentor, Ohio. 



Description: Flowers; double (14-18 petals), expanding buds 

 rose pink, open white, approx. 5.5 cm. across. Fruit; yellow with 

 red cheek, approx. 1.5 cm. in diam. 



Locations: (A), (N). 



cv. Helen* 



M. baccata 



cv. Jay Darling* 



M. pumila var. niedzwetzkyana—* 



Helen' 



Unknown ■ 



= cv. 



An open pollinated seedling selected at the Des Moines Water 

 Works, Des Moines, Iowa, in 1939 by Arie den Boer. Named in 

 1951 and introd. by den Boer. 



Description : Flowers ; single, expanding buds dark red, open red, 

 approx. 4.5 cm. across. Fruit; purplish red, approx. 2 cm. in diam. 



Locations: (A), (C). 



cv. Henrietta Crosby 



M. baccata 



M. X arnoldiana' 



M. Horibunda— 



cv. Henrietta Crosby 



M. pumila var. niedzwetzkyana- 



Originated from a cross made in 1939 by Karl Sax of the 

 Arnold Arboretum and introd. in 1947. Formerly A. A. 19039. 

 Named for Mrs. S. V. R. (Henrietta) Crosby of Manchester, Mass. 



Description: Flowers; single, pink, approx. 4.5 cm. across. Fruit; 

 dark red, approx. 2.5 cm. in diam. 



Locations: (A), (B), (C), (D), (E), (L), (0). 



cv. Henry F. DuPont* 



See the genealogical scheme showing the probable parental 

 relationships for cv. Henry F. DuPont* on page 71. 



An open pollinated seedling selected in 1946 by Karl Sax of the 

 Arnold Arboretum. Named for Henry F. DuPont of Winterthur, 

 Del. Syn : M. cv. Henry DuPont. 



Description: Flowers; single and semidouble (5-10 petals), 

 expanding buds purplish red to deep rose red, open light purplish 

 pink fading to pale magenta, approx. 4.3 cm. across. Fruit; 

 brownish red, approx. 1.4 cm. in diam. 



Locations: (A), (B), (C), (N), (0), (P), (S). 



