BOTANICAL SURVEY— SUGAR GROVE REGION 305 



Some of Bigelow's plants belong to species that were not well 

 understood at the time or whose identity the writer is inclined to ques- 

 tion for other reasons. These are not included in the list ; they are : 



Ranuncnhis pusillus. "Near the coast S. N. Y. to Da. and Tex., n. in the Miss, basin 



to Mo. and Tenn." 

 Viola cucculata. Det^ermination doubtful. 

 Viola labradoriea. Determination doubtful. 

 Viola sagitatta. Determination doubtful. 

 Silene regia. Probably S. rotundifolia. 

 Oxalis stricta. Determination doubtful. 

 Acer spicatum. This is almost certainly absent now, but its habitat is sucli that 



it could hardly have become extinct. It is, however, difficult to imagine what 



could have been mistaken for it. 

 Lythrum hysopifolium. "Near the coast Me. to N. J. Also on the Pacific Coast." 

 Antennaria dioica. Evidently a misdetermination. European species included in 



Gray's manual as "found by Geo. Thurber in 1844, Imt not since collected." 

 Hicoria glabra? Queried by Bigelow\ 

 Scutellaria nervosa"? Queried by Bigelow. 

 Chenopodium urbicum. No Ohio specimens extant. 

 Polygonum hirsutum ? Queried by Bigelow. 

 Polygonum mite. A European species. 

 Rumex aquaticus. Synonomy doubtful. 

 Juncus polycephalus. Synonomy doubtful. 

 ' 'Leimanthium virginicum Willd. " ' Synonomy doubtful. 

 Sparganium ramosum. Synonomy doubtful. 

 Potomogeton co7npressum. Synonomy doubtful. 

 Potomogeton gramineum. Synonomy doubtful. 

 Panicum nitidum. Synonomy doubtful. 

 Panicum involutum. Synonomy doubtful. 

 Aristida stricta? Queried by Bigelow. 

 Elymus villosus. Synonomy doulitful. 

 Isolepis capillaris. Synonomy doubtful. 

 Carex acuta. Synonomy doubtful. 

 Carex anceps. Synonomy doubtful. 

 Carex arida. Synonomy doubtful. 

 Carex bullata. "Mass. to Del., local." Formerly included in the Ohio list, but no 



Ohio specimens known. 

 Carex paniculata. Synonomy doubtful. 

 Carex sylvatica? Queried by Bigelow. 

 Carex tentaculata. Synonomy doubtful. 

 Carex tetanica? Queried by Bigelow. 

 Equisetum limosum? Queried by Bigelow. 



He further reports a very considerable number of plants which are not other- 

 wise definitely known from the region. Some of these, like Chenopodium botrys, 

 are the commonest of plants, which have merely failed of notation by later workers, 

 but manv are verv rare if, indeed, thev are still to be found in the area. It does 



