35 
B. N. A. BOUNDARY COMMISSION. 

Caltha Palustris, L. Winnipeg and N. W. Angle Road (swamp), July. 5,’73. Last 
flowers. Lake of the Woods. Swamp at base Pembina Mt. May 24, ’74, 
in flower. ; 
Clematis ligusticifolia, Nutt. Waterton Lake (thicket), Aug, 29, ’74. Past 
flowering. © . hs 
Coptis trifolia, Salisb. Lake of the Woods. 
Delphinium azureum, Mx. Plains near Wood Mountain, July 23, ’73, in flower 
but with mature seed also. 
Myosurus minimus, L. Near Short Creek, (open swamp) June 10,’74, in flower. 
Ranunculus aquatilis, L, var. capillaceus, 8. Antler Creek, July 31,73. Wood 
End, July 13,’74. Near Wood Mountain, July 2, ’74, in flower. 
Ranunculus Purshii, Richards. Foot hills of Rocky Mountains (swamps) Aug. 9, 
74, in flower. Wood End, July 13, ’74, in flower. 
Ranunculus flammula, L. var, reptans. Lake of the Woods. Aug. 7, ’73, in flower. 
Ranunculus abortivus, L. Dufferin (thicket), June 6, ’73, in flower. 
Ranunculus repens, L. Red River Prairie (open swamp) June 28th, ’73, in 
flower. Lake of the Woods, July 8,’73, in flower. Both the hispid variety. 
Ranunculus afinis, Br. Lake of the Woods, (sandy shore), July 12, ’73, in flower, 
but with ripe seed. Traders’ Road, (open swamp), June 16, ree in flower, 
with fully formed seed. 
Ranunculus rhomboideus, Goldie. Red River (prairie), May 22, 74. Pembina 
Mountain, (open coulée), May 26, in flower, but also with carpels half grown. 
Common on the open prairie, rarely surpassing 3 or 4 inches. In more 
sheltered localities taking the form of R. ovalis. Hooker. ia 
Ranunculus cymbalaria, Pursh. Dufferin, June 9, "13; (open prairie). Wood End, 
July 8,’74, near Wood Mountain, June 26, ‘74. First branch Milk River, 
Aug. 6 6,74. All in flower. Grows on wet prairie, and along the borders of 
streams. 
Ranunculus hispidus, Mx. Dufferin, (swamp), June 16, 73. _Wood Mountain, 
(swamp), June 24, ’74. Both in flower. 
Ranunculus pygmxus, Wehl. Rocky Mountains, 7,000 feet, Aug. 18, 74, in flower. 
Thalictrum dioicwm, L. Dufferin, (open prairie), June 4, '73, in flower. Very 
common. First crossing Souris River, June 5,’74. In river vallies and open 
prairie, abundant in flower. 
Thalictrum dioicum, Var. purpurascens, D.C. First crossing Souris River, June 
5, 74. 
Thalictrum cornuti, L. Dufferin, (thicket and borders of woods), June 25, ’73, in 
flower. 
MENISPERMACE®. 
Menispermum canadense, L. Dufferin, (thicket), June 21, ’73, in flower. 
BERBERIDACEA). 
Berberis (Mahonia) aquifolium, Pursh. Rocky Mountains. With ripe fruit in 
Aug. Dwarf, rarely exceeding one foot in height. Bourgeau says itis found 
on west side of Rocky Mountains only, but on the forty-ninth parallel it is 
abundant also on the eastern slopes. 
NYMPHEACEA. 
Nuphar advena, Ait. Lake of the Woods. July 30, ’73, in flower. 
SARRACENIACEA,. 
Sarracenia purpurea, L. Swamps near the Lake of the Woods. Common. July 
5, ’73, in flower, 
