BOTANICAL GAZETTE, 105 
_ Cleome integrifolia, Torr. & Gr., which is found here and there 
in Minnesota as an introduced plant, is first met with in its in- 
not observed east of Jamestown. Viola cucullata, Ait., was not 
_ rare in the region covered by the drift, but was confined to the 
borders of the numerous small ponds. 
Cerastium and two species of Arenaria, not determined, 
were very common. One of the Arenarias was met with only on 
the top of the buttes west of the Missouri, forming dense tufts, 
the short stems closely covered with small rigid leaves, giving it 
a spiny appearance. 
rather common and showy plant was Malvastrum coccineum, 
Gray, the only one of the Malvacee seen 
observed later in the season and were found to be nearly as large 
a3 in the cultivated flax (LZ. usitatissimum, L.), with seeds about 
half as large, of a shining dark brown color, and apparently con- 
taining a considerable proportion of oil. e question arises, 
whether this wild flax could be improved by cultivation so as to 
equal in fiber, if not in oil, the L. usitatissimum. It is well worth 
experiment to determine these points, more especially as it isa 
perennial, while the cultivated flax is an annual. 
olygaula verticillata, L., and another species, of which no 
published description conld be found, were frequently collected 
west of the Missouri, extending into Montana. 
As might be expected, the Leguminose were well represented, 
but a lack of authorities and published descriptions prevented full 
and complete determinations of the many interesting species col- 
lected. Fourteen species of Astragalus were observed, among 
them A. simplicifolius, Gray, and A. triflorus, Gray. The former 
was observed only in Montana, on the hills between McClennan 
and Hodges stations on the Northern Pacific Railroad. Psoralea 
argophylla, Pursh, P. esculenta Pursh, and P. lanceolata, Pursh, 
‘were noted, The latter possesses the peculiarity of forming at 
