48 JOURNAL OF THE ARNOLD ARBORETUM [vol. vi 



Crataegus 



macrosperma var. peniandra (Sarg.) Eggleston in Rhodora, x. 80 (1908) = 



C. pentandra. 

 macrosperma X pruinosa Eggleston in N. Y. State M us. Bull, ccxliii 



iv. 64 (1923). (?) 

 macrosperma X punctata Eggleston in N. Y. State Mus. Bull, ccxliii 



iv. 64 (1923). (?) 

 magniflora Sargent in Bot. Gaz. xxxv. 383 (1903). — Coccineae. 



Ontario, Northern Illinois (type locality: Glendon Park, near 



Chicago, 111.), 

 magnifolia Sargent, Trees and Shrubs, n. 69 (1908). — Pruinosae. 



Missouri (type locality: Webb City). 

 Maineana Sargent in Proc. Rochester Acad. Sci. iv. 106 (1903). 



Silvicolae. — New York (type locality: Rochester), 

 maligna Sargent in N. Y. State Mus. Bull, clxvii. Ill (1913). — Rotundi- 



foliae. — New York (type locality: Ogdensburg). 



maloides Sargent, Trees and Shrubs, I. 9 (1902) = C. aestivalis var. 



maloides Sarg. 

 mansfieldensis Sargent in Jour. Arnold Arb. iv. 103 (1923). — Rotundi- 



foliae. — Ohio (type locality: Mansfield). 

 marcida Ashe in Jour. Elisha Mitchell Sci. Soc. xx. 53 (1904). — Tenui- 



foliae. — Ohio (type locality not given). 

 Margaretta Ashe in Jour. Elisha Mitchell Sci. Soc. xvi. 72 (1900). 



Rotundifoliae. — Ontario and West Virginia, west to Ohio, Iowa 



and Missouri (type locality: St. Louis County, Mo.). 

 Margaretta var. Brownii (Britton) Sargent in Jour. Arnold Arb. III. 199 



(1922). — Pennsylvania, Virginia and West Virginia, west to Ohio, 



Indiana and Missouri (type locality of C. Brownii: Buchanan, Va.). 

 Margaretta f. xanthocarpa Sargent in Jour. Arnold Arb. in. 200 (1922). 



Iowa (type locality: Steamboat Rock). 

 Maribella Sargent in N. Y. State Mus. Bull, clxvii. 109 (1913). 



Rotundifoliae. — New York (type locality: Little Falls), 

 mariettensis Sargent in Jour. Arnold Arb. in. 194 (1922). — Pruinosae. — 



Ohio (type locality: Marietta). 

 Marshallii Eggleston in Rhodora, x. 79 (1908) = C. apiifolia Michx. 

 matura Sargent in Rhodora, in. 24 (1901); v. 144 (1903).— Tenui- 



foliae. — Southeastern Canada, New England, New York, Michigan 



(type locality: Middlebury, Vt.). 

 McGeeae Ashe in Jour. Elisha Mitchell Sci. Soc. xvin. 20 (1902). — 



Group? — Iowa (type locality: "southeastern Iowa"). (?) 

 media Sargent in Rhodora, v. 150 (1903). — Tenuifoliae. — Connecticut 



(type locality: Oxford), 

 medioxima Sargent in Proc. Acad. Nat. Sci. Phila. lxii. 190 (1910). 



Silvicolae. — Pennsylvania, Ohio (type locality : between Carnot 



and Stoope's Ferry, Pa.). 



