1891J The Flora of the St. Croix Region. 127 



the immediate shore. The body of water designated as 

 above, or more often in the singular number, is made up of 

 three principal sheets of water joined by narrow straits, and 

 with numerous small bays indenting from its shores. On a 

 tongue of land projecting from its eastern side is the village of 

 Center City, the county seat of Chesago county, ambitious in 

 name but diminutive. This was my stopping place, in the 

 midst of a population almost wholly Swedish. There were 

 fine farms around, and the many goodly farm buildings showed 

 thrift and comfort. When one strolled into the fields and 

 woods, there was a strong reminder of Ohio and New York 

 in its better cultivated parts, though the hills were lower, and 

 the beech, the chestnut and the tulip-tree were noticeably 

 absent from the woodlands. But most of the other trees were 

 there, the maple in abundance; and all the humbler plants, 

 the asters, and goldenrods in the corners of the crooked 

 fences, and those spared by the sheep and cattle feeding in 

 the woods, had a familiar look. 



The lakes and ponds abounded in species of Potamogcton. 

 The shallower and more sheltered parts were covered with 

 pond-lily plants, Nymphaea reniformis and Nuphar advena. f 

 Allusion has been made in a former article to the quantities of 

 P. Robbinsii here. It almost filled the water in some places 

 to the exclusion of other plants. The season was late for 

 good specimens in fruit, as most of it had fallen off, but some 

 was obtained in good condition. P. pnelongus was also very 

 abundant in deeper water, taking other areas quite to itself. 



So it may be said of P. perfoliatus, var. lanceolatus, and /'. 



pec t Hiatus, in places most suitable to their growth. Along 

 the west side of a long point of land extending south from the 

 rail wax- station, P. Spirillus was sparingly found. I had not 

 before seen it at the West, where it seems rare and local. 

 One more station has been given for it in Minnesota, Prof. 

 L. H. Bailey having found it in Long Lake, in the extreme 

 northeastern part of the state, in 1886. I have not met with 

 it in Michigan. Wheeler and Smith in their Catalogue of 

 Michigan Plants credit it to the Upper Peninsula on the 



M 



M 



Put this is very general, and may be outside of Michigan, 

 though there is no reason to question its presence in that 

 state, except its rarity and the indefinitene-- of the locality. 

 Dr, Vasev has found 'it in northern Illinois, in McHenry coun- 



