
CHICKERING ON PLANTS OF DAKOTA AND MONTANA. 
. Potentilla fruticosa, L. 
1874, August. Milk River. Abundant. ¢ 
. Potentilla effusa, Doug. 
. Potentilla glandulosa, I. 
. Potentilla gracilis, Doug. 
1873. August. Second prairie plateau. 
1874. August. Frenchman’s Creek. 
. Potentilla hippiana, Lehm. 
. Potentilla Norvegica, L. 
1873. July. Pembina. 
1874. August. Frenchman’s Creek. 
. Potentilla palustris, Scop. 
. Potentilla Pennsylvanica, L. 
1873. August. Second prairie plateau. 
. Potentilla tridentata, Ait. 
. Fragaria Virginiana, Ehrh. 
1873. July. Pembina. 
1874. August. Sweetgrass Hills, abundant. 
. Fragaria vesca, L. 
. Rubus strigosus, Mx. 
1874. July. Frenchman’s Creek. Thickets. 
. Rubus triflorus, Rich. ° 
1873. July. Pembina. 
. Rubus. Nutkanus, Moc. 
. Rosa blanda, Ait. 
809 
1873. July. Pembina. Everywhere on the prairie, especially 
on the edges of woods along the streams. 
. Crataegus tomentosa, L., var. punctata. 
1873. July. Pembina. In flower.—September. 
River. In fruit. 
. Crateegus coccinea, L. 
. Pyrus sambucifolia, Ch. & Sch. 
1874. August. Base of Rocky Mountains. 
. Amelanchier Canadensis, L., var. alnifolia. 
1873. July. Pembina. In fruit. 
1874. July. Milk River. 
SAXIFRAGACEA. 
164. Ribes aureum, Pursh. 
. 
mo *165 
1874. July. Missouri River. In fruit. 
. Ribes Cynosbati, L. 
166. Ribes floridum, L’Her. 
167 

1873. July. Pembina. In thickets. 
. Ribes hirtellum, Mx. 
1874. July. Along Frenchman’s Creek. 
*168. Ribes rotundifolium, Mx. 
Along Mouse 
