Lake Maxinkuckee, Physical and Biological Survey 189 

 45. CREEPING SPIKE-RUSH 



ELEOCHARIS PALUSTRIS (Linnaeus) 



This is one of the most variable in size and general appearance 

 of all the spike-rushes, sometimes being tall and stout, and resem- 

 bling a small bulrush, and at other times rather small and incon- 

 spicuous like its smaller relatives. One tall patch was found at 

 Long Point, along the north side of that cape, and another by the 

 green boathouse. It was also found at Fletcher Lake, near Logans- 

 port. 



Like the other species of Eleocharis it grows in rather shallow 

 water, hardly ever over a foot in depth, and never far out from 

 shore. Like the other species, too, it spreads by means of root- 

 stalks. It was sticking up well out of the water by May 28, 1901, 

 at Long Point, and by June 6 was in blossom. 



46. ELEOCHARIS PALUSTRIS GLAUCESCENS Willdenow 



This form was found along the beach toward the south end of 

 the lake. 



47. NEEDLE SPIKE-RUSH 



ELEOCHARIS ACICULARIS (Linnreus) 



One of the most minute of the spike-rushes, common at the 

 water's edge and in low, damp places, often appearing like a growth 

 of fine stiff green hairs. The plants grow in straight rows like 

 drills in every direction in shallow water near shore, forming net- 

 works. Patches were found in front of the Arlington Hotel ; com- 

 mon on the west shore of Lost Lake, also at bottom of the Outlet, 

 far down, and a large amount found at the tamarack swamp west 

 of Lake Maxinkuckee. 



In flower on Green's marsh, May 29, 1901. 



48. BROAD-LEAVED ARROWHEAD 



SAGITTARIA LATIFOLIA Willdenow 



Found scattered along the shore at the water's edge usually in 

 mud, but sometimes in sandy places, in which case the plants were 

 small with rather narrow leaves, as at Long Point and at Outlet 

 Bay, at Winfield's, etc. Usually it grows in mud, as in the region 

 of Norris Inlet, and here the plants were stout and the leaves broad. 

 Fruiting about September 28 near Winfield's. For propagation, in 

 addition to seeds, these plants form large round bluish tubers about 

 the size of a walnut. These tubers have a rich crisp yellowish in- 

 terior and a pleasant sweetish taste, and seem to be formed here 

 only exceptionally. The plants had sprouted well by May 24, 1903. 



