VASCULAR PLANTS OF NORTH DAKOTA 57 



green-tipped bracts. Rays white or pale pink, or dark to pa1<" 

 violet purple. 



Growing in the muddy soil of low meadows on the border 

 of James River (hence the species name), near Jamestown, Stuts 

 man County, where it was collected by the writer on August 24, 

 1913. Found in similar surface conditions at Leeds on Sept 3, 1916. 



1091. Aster durus Lunell in Am. Mid. Nat. Vol. II: 148. 

 (1911). 



Leeds, Butte, Pleasant Lake. 



1092. Aster ptarmicoides (Nees) T. & G. Fl. N. A. 2: 160. 

 (1841). 



Doellingeria ptarmicoides Nees, Gen. & Sp. Ast. 183. ( 1832) 

 Leeds, Butte, Minot. 



1093. Aster multiflorus Ait. Hort. Kew 3: 203. (1789). 

 Leeds, Butte; Kulm (Brenckle). 



1094. Aster polycephalus Rydb. Bull. Torr. Bot. Club. 33: 

 153- (1906). 



Leeds. 



1095. Aster commutatus (T. & G.) A. Gray, Syn. Fl. I: 

 part 2. 125. (1841). 



Aster multiflorus commutatus Torr. & Gray, Fl. N. A. A. 2: 

 125. (1841). 



Leeds, Butte. 



1096. Aster exiguus (Fernald) Rydb. Bull. Torr. Bot. 

 Club. 28: 505. (1901). 



Butte. 



1097. Aster crassulus Rydb. Bull. Torr. Bot. Club. 28: 

 504. (1901). 



Leeds, Butte; Fargo (CI. Waldron). 



1098. Aster pauciflorus Nutt. Gen. PI. 2: 154. (1818). 

 "Margins of saline springs, near Fort Mandan on the Mis- 

 souri;" Cherry Creek, Shafer, McKenzie County (O. A. Stevens). 



BRACHYACTIS Ledeb. Fl. Ross. II: 495. (1846). 



1099. Brachyactis angustus (T. & G.). Britt. 111. A. Ill: 



383- (1893)- 



Aster angustus T. & G. Fl. N. A. 2: 162. (1842). 



Leeds, Butte. 



MACHAERANTHERA Nees, Gen. & Sp. Ast. 224. (1832). 



1 100. Machaeranthera canescens (Nutt.) Gray, PI. Wright 

 I: 89. (1852). 



Williston (W. B. Bell.) 



