VASCULAR PLANTS OF NORTH DAKOTA 361 
470. Leucocoma albens (Greene). Lunell. 
Thalictum albens Greene, in Am. Midl. Nat. Vol. II, p. 292. 
(1912). 
Valhalla (L. R. Waldron). 
471. Leucocoma Lunellii (Greene) Lunell. 
Thalictrum Lunellit Greene in Am. Midl. Nat. Vol. I, p. roz. 
(1909). 
Minot, Towner. 
472. Leucocoma thyrsoidea (Greene) Lunell. 
Thalictrum thyrsoideum Greene in Am. Midl. Nat. Vol. I, 
Pp. 102. (1909). 
Leeds, Butte, Dunsieth. 
473. Leucocoma thyrsoidea silvana Lunell. 
Thalictrum thyrsoideum silvanum Lunell, in Am. Midl. Nat. 
Vol... II. p.j157-. (1911). 
Peninsula of Lake Ibsen, Devils Lake, Pleasant Lake, Towner, 
Turtle Mountains. 
474. Leucocoma vegeta (Greene) Lunell. 
Thalictrum vegetum Greene in Am. Midl. Nat. Vol. I. p. 103. 
(1909). 
Devils Lake, Peninsula of Lake Ibsen, Turtle Mountains, 
Towner, Minot, Pleasant Lake. 
Family 45. HELLEBORACEAE Loiseleur—Delongchamps, 
Man. Pl. Us. (1819). 
AQUILEGIA Fuchs. Hist. Stirp. p. 39. (1546). 
475. Aquilegia canadensis (Cornuti) Linn. Sp. Pl. 534. (1753.) 
Turtle Mountains. 
POPULAGO Tabernaemontanus, Neeuw. Kreuterb. p. 118. 
(1590). Tour. Els. p. 238. (1694). Moench. Meth. p. 250. (1794). 
Caltha Linn., not of the older botanists, which is =Calendula. 
476. Populago palustris (Linn.) Moench. 1. c. 
Caltha palustris Linn. Sp. Pl. 588. (1753). 
Sheyenne, Pleasant Lake, Granville. 
PLECTRORNIS, Raf., Med. Fi. II, 216 (1830). 
(An nomen nudum?) 
Delphinastrum Spach, Hist. Nat. Veg. VII, p. 336 (1839) 
not desirable as built on another plant name. 
477. Plectronis albescens (Rydb.) Lunell. 
Delphinium albescens Rydb. Bull. Torr. Cl. 583 (1899). 
