APPENDIX F. 365 

Hieracium albiflorum, Hook. Rocky Mountains (6,000 feet), Aug. 16, 74, in 
flower. 
Tieracium venosum, L. Red River prairie, June 20,’73. Wood Mountain, June 
23, 74. 
Hymenopappus luteus, Nutt. White Mud River (dry bank), June 3, ’74, in flower. 
fva axillaris, Pursh. Near Short Creek (open prairie), June 10, ’74. Not ob- 
served further east than this locality, but abundant westward, growing 
generally on hard, dry clay soil, which has been flooded in spring. 
Lactuca elongata, Muhl. Lake of the Woods, July 28, ’73, with ripe seed. 
Lepachys columnaris, T. & G. First Crossing Souris, July 30, ’73, in flower. 
Wood End, (open prairie), July 7, ’74, first blossoms. White Mud River, 
July 11, ’74, first blossoms. 
Lynosyris Howardii, Parry. Second Branch Milk River (dry clay bank), Sept. 1, 
74, in flower. Tufted from a stout low woody. 
Lynosyris graveolens, T. & G. ‘Between Lake of Woods and 350 Mile Point, 1873, 
(label of specimen lost.) 
Liatris seariosa, L. Turtle Mountain, July 30, ’73, in flower. Abundant on the 
first and second prairie steppes. 
Liatris punctata, Hook. Rising ground, east of Red River, August 26, ’73, in 
flower. Turtle Mountain, (open prairie,) August 5,’73, in flower. Abundant 
in patches of prairie, east of the Red River; and also west of the Red River 
over the second prairie steppe. 
Lygodesmia juncea, Don. Turtle Mountain, (open prairie), August 23, ’73, in 
flower. Observed nearly to the edge of the second prairie steppe, but very 
rare east of Turtle Mountain. Abundant westward on dry plains both north 
and south of the watershed. 
Macheranthera canescens, Grey. South of Wood Mountain, (dry clay-bottomed 
vallies, sub-saline soil). Variety 6 to 8 inches high, with entire leaves. 
Macrorrhyncus trozamoides, F, and G. Dufferin, June 10, ’73, in flower. 
Macrorrhyncus glaucus, Torr. Red River Prairie, June 7, 20, ’73, (open prairie 
near Souris River, September, ’73. Near Turtle Mountain, (open prairie) 
June 2, ’74, all in flower. I cannot separate this form satisfactorily from the 
last, which is much less abundant. Specimens from the Red River Valley 
have leaves 10 inches or more long ; scapes 12 to 14 inches. In specimens 
from the second prairie steppe, the leaves are shorter in proportion to the 
scape, and have assumed a thicker and more rigid character. 
Macrorrhyneus, Sp. I. Rocky Mountains, (6,000 feet), August 16, ’74, in flower. 
Macrorrhyncus, Sp. Il. Kootanie Pass, August 16, 74, in flower. 
Mulgedium acuminatum, D.C. Lake of the Woods, July 30,’73. Turtle Moun- 
tain, July 26,’73. White Mud River, July 4,’74. All in flower. 
Mulgedium leucopheum, D.C. Lake of the Woods, July 31, ’73, with ripe seed. 
Nabalus Boottii, D. C. Var. South Fork Belly River, Aug. 13, ’74, in flower. 
Growing in thickets and much taller than usual. Proper scales of involucre 
about 12. Head about 12—flowered. Leaves below triangular, tapering 
abruptly to a broad-margined petiole. 
Nabalus albus, Hook. High land east of Red River prairie, Aug. 24, ’73, in flower. 
Nabalus, Sp. I. Kootanie Pass, Aug. 15, ’74, in flower. 
Nardosmia sagittata, Pursh. Dufferin (low damp thicket). In full bloom in the 
first week of May, ’74. Seed nearly ripe, June 4, ’73. Flower with an 
odour like that of Crategus, white, tinged with purple. 
Picradenia (Actinella) Richardsoni, Hook. ‘Traders’ Road (dry hills) June 18, ’74. 
White Mud River, July 4,’74. Both in flower. 
