19251 PALMER, SYNOPSIS OF NORTH AMERICAN CRATAEGI 63 



Crataegus 



rhodella Ashe in Jour. Elisha Mitchell Sci. Soc. xvm. 19 (1902). 



Uniflorae. — North Carolina, Tennessee (type locality : Franklin, 



N. Car.), 

 rhorabifolia Sargent in Rhodora, v. 183 (1903). — Macracanthae. 



Canada, New England, New York (type locality: Trading Cove, 



Norwich, Ct.). 

 Ridgwayi Sargent in Jour. Arnold Arb. vi. 2 (1925). — Molles. 



Southern Illinois (type locality: Olney). 

 rigens Beadle in Biltmore Bot. Studies, i. 54 (1902). — Punctatae. 



Georgia, Alabama, Tennessee (type locality: Gadsden, Ala.), 

 rigida Sargent in Rep. Missouri Bot. Gard. xix. 99 (1908). — Pruinosae. 



Missouri (type locality: Pacific), 

 rimosa Beadle in Biltmore Bot. Studies, i. 107 (1902). — Flavae. 



Florida (type locality: Citra). 

 riparia Ashe in Jour. Elisha Mitchell Sci. Soc. xvn. 11 (1900). — Silvi- 



colae.— North Carolina (type locality: Swain County), 

 rivalis Sargent in Proc. Acad. Nat. Sci. Phila. lvii. 580 (1905). — Crus- 



galli. — Pennsylvania, Ohio (type locality: Sellersville, Pa.). 

 rivularis Nuttall apud Torrey & Gray, Fl. N. Am. i. 464 (1840). 



Douglasianae. — Idaho, Wyoming, Colorado, Utah, Nevada (type 



locality: "Oregon, along rivulets in the Rocky Mountains"), 

 roanensis Ashe in Bull. N. Car. Exper. Sta. clxxv. 114 (1900). — Tenui- 



foliae. — Virginia, North Carolina, West Virginia, Tennessee (type 



locality: Roan Mountain, N. Car.). 

 Robbinsiana Sargent in Rhodora, vn. 197 (1905) = C. diffusa Sarg. 

 Robesoniana Sargent in Rhodora, v. 110 (1903). — Molles. — Ontario, 



Massachusetts, New York, Pennsylvania (type locality: Lenox, 



Mass.). 



Robinsonii Sargent in Rhodora, v. 184 (1903). — Macracanthae. — Nova 



Scotia (type locality: Lock Broom, near Pictou). 

 robur Beadle in Biltmore Bot. Studies, i. 69 (1902). — Pulcherrimae. 



Florida (type locality: Tallahassee), 

 robusta Sargent in N. Y. State Mus. Bull. cxxn. 28 (1908). — Crus- 



galli. — New York (type locality: Niagara Falls), 

 roribacca Ashe in Jour. Elisha Mitchell Sci. Soc. xvn. 4 (1900). 



Group? — North Carolina (type locality: "Oconaluftee River, in 



the mountains of North Carolina"). (?) 

 Rosei Eggleston in Bull. Torr. Bot. Club, xxxvi. 509 (1909). — Mexico 



(type locality: Alvarez, San Luis Potosi). 

 rotunda Sargent in Rep. Missouri Bot. Gard. xix. 59 (1908). — Crus- 



galli. — Missouri (type locality: Webb City). 

 rotundata Sargent in Ontario Nat. Sci. Bull. iv. 61 (1908). — Rotundi- 



foliae. — Ontario (type locality: London). 



