422 THE AMERICAN MIDLAND NATURALIST 
599. Oxyacantha chrysocarpa (Ashe) Lunell. 
Crataegus chrysocarpa Ashe. 
Peninsula of Lake Ibsen, Pleasant Lake, Towner, Minot. : 
Family 63. DRUPACEAE Linn. Phil. Bot. 31. (1751) and 
(1754). 
PRUNUS Dioscorides Mat. Med. 137. Tour. Els. 494. (1693), 
Finn: Gen. “(1737'and 1755), a. (part. 
600. Prunus americana Marsh. Arb. Am. III. )1785). 
Peninsula of Lake Ibsen, Devil’s Lake, Turtle Mountains. 
601. Prunus nigra Ait. Hort. Kew. 2: 165. (1789). 
Turtle Mountains: Fish Lake, St. John. 
CERASUS Theophrastus, Hist. 3: 13, Tour. Els. 625. (1694). 
Linn. Syst. (1735). 
602. Cerasus Besseyi (Bailey) Lunell. 
Prunus Bessey Bailey, Bull Cornell. Agric. Exp. Sta. 70. 
261, (1894). 
Butte (cultivated); Emmons Co.: Beaver Creek Valley 
(Brenckle). 
603. Cerasus pennsylvanica (Linn. f.) Loisel. Arb.g. (1801~19). 
Prunus pennsylvanica Linn. f. Suppl. 252. (1781). 
Turtle Mountains. 
PADUS Theophrastus, Hist. 4: 1. C. Bauhin etc. Linn. Syst. 
(1735), Gen. (1737), Miller. Gard. Dict. abr. ed. 4. (1754). 
604. Padus melanocarpa (A. Nels.) Shafer in Britt. & Shaf. 
N. Amer. Trees 504. (1908). 
Cerasus demissa melanocarpa A. Nels. Bot. Gaz. 34: 25. (1903). 
Prunus melanocarpa (A. Nels. )Rydb. Bull. Torr. Bot. Club 
83°°143. (1906). 
Peninsula of Lake Ibsen, Butte, Pleasant Lake. 
605. Padus virginiana (Linn.) Miller, Gard. Dict. ed. 8. 
NO.) 4-., (1768). 
Prunus virginiana Linn. Sp. PI. 473. (1753). 
Turtle Mountains. 
Family 64. LOMENTACEAE Linn. Phil. Bot. (1751), pro 
maiore parte! 
Mimoseae Robert Brown, Flander’s Voyage, Bot. II, App. 
III. 551. (1814), also Bartling, Ord. Nat. Pl. 231 & 416. (1830). 
Mimosaceae Reichenbach, Fl. Exc. 437. (1832). 
ACUAN Med. Theod. Sp. 62. (1786). 
Desmanthus Willd. Sp. Pl. 4: 1044. (1806), 
