42 NEW YORK STATE MUSEUM 



Arceuthobium pusillum Pk. 



This parasite on the black spruce seems to prefer the half-starved trees 

 that grow in and around sphagnous swamps and marshes. But it is not 

 limited to them. The past season I found it upon branches of spruces 

 just cut for lumber far up on the slope of Mt. Morris near Tapper lake. 

 It was also found still inhabiting spruces about the marsh near Warrens- 

 burg, where it was originally discovered by Mrs. L. A. Millington. 



Potamogeton filiformis Pers. 



This is abundant in the lower part of Hemlock lake. There are two 

 forms of it. The shorter one is erect, six to twelve inches high, and 

 appears to bear its fruit wholly beneath the surface of the water. The 

 other is taller and is perhaps more liable to be mistaken for P. pectinatus. 



Potamogeton Spirillus Tuckm. 



There are two well marked forms of this species as it occurs in our 

 State. In one the leaves are straight or nearly so, erect or spreading and 

 an inch or an inch and a half long. In the other the leaves are con- 

 spicuously curved, the apex usually pointing downward. They are 

 shorter than in the other form, commonly ranging from one-half to three- 

 fourths of an inch in length. This curving of the leaves gives the plant 

 a very distinct and peculiar aspect and the foliage a singular curly 

 appearance. This is the common, and indeed the only form of the 

 species I found in Hemlock and Canadice lakes. In the eastern part of 

 the State the other is the prevailing form. Believing this western form 

 worthy of recognition I have labled our specimens Potamogeton Spirillus 

 var. curvifolius. Both forms occur either with or without floating leaves, 

 but in var. curvifolius floating leaves are rarely present. I have seen them 

 in specimens from Lower Saranac lake only. 



Allium cernuum Roth. 

 Rathboneville. August. A white-flowered form. 



Carex folliculata L. 



A large thrifty appearing form of this species occurs near Tupper Lake 

 bearing double spikes in each of the two or three upper axils. I label 

 the specimens C. folliculata var. bispicata. 



The low form, ten to fifteen inches high, bearing two to four approxi- 

 mate spikes is not rare in sterile soil and on cold sphagnous marshes 

 and beaver meadows. It seems to be merely a dwarf form. 



