Upliam.] 
154 
[May 21, 
Chrysopsis, and Gutierrezia in the list of western plants, here 
noted in the declining order of their height. 
A clayey soil prevails throughout the Red river valley, except- 
ing the small beach ridges of sand and gravel marking the former 
shore lines of Lake Agassiz, and the sandy expanses of deltas 
which were brought into this ancient lake by the Buffalo, Sand 
Hill, Sheyenne, Pembina, and Assiniboine rivers. Numerous 
species of plants prefer the sandy beaches and grow there in 
greater abundance and luxuriance than elsewhere, among these 
being the pasque-flower, Psoralea argophylla, Pursh, and P. escu- 
lenta, Pursh, two varieties of Potentilla Pennsylvanica, L., Rosa 
Arkansana, Porter, Liatris punctata, Hook., Chrysopsis villosa, 
Nutt., Lepachys columnaris, Torr. & Gray, Gaillardia aristata, 
Pursh, Lilium Philadelphicum, L., and Ammophila longifolia, 
Benth. Near Arden, Manitoba, one of the beaches of Lake Ag- 
assiz has been named by the settlers u Orange Ridge,” from its 
orange-red lilies, and another is called the “ Rose Ridge.” 
Maritime species on saline and alkaline soil . — The following 
plants peculiar to the sea- shore and its salt marshes, not found 
elsewhere in the Eastern States and Provinces, excepting some of 
them at salt springs in New York and along the shores of the Great 
Lakes, re-appear in abundance on the saline and alkaline soil in 
certain parts of the Red river valley and of the western prairies 
and arid plains. 
MARITIME PLANTS IN THE BASIN OF THE RED RIVER. 
Buda marina, Dumort (Spergularia media, Presl.), common on 
the borders of saline lakes from Winnipeg to the Rocky Moun- 
tains, and extending north to Great Bear lake. 
Glaux maritima, L., a pretty little flower, on moist portions of 
the prairie, often plentiful but half hidden in the grass ; also found 
on the borders of saline and alkaline lakes and marshes. 
Heliotropium Curassavicum, L., common on the shores of brack- 
ish lakes ; observed in abundance locally in dried sloughs near 
Towner and Devil’s Lake, North Dakota. 
Plantago eriopoda, Torr., very abundant on moist, flat, alkaline 
land ; observed eastward to eight miles east of Breckenridge, Min- 
nesota, and to the vicinity of Grand Forks, Pembina, and Winni- 
peg. 
Chenopodium rubrum, L., and its var. humile, Moquin, common 
