BOTANICAL SURVEY— SUGAE 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 (lues- 

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



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



to Mo. and Tenn." 

 Viola cucculata. Determination doubtful. 

 Viola labradorica. Determination doubtful. 

 Viola sagitatta. Determination doubtful. 

 Silene regia. Probably S. rotundifolia. 

 Oxalis stricta. Determination doubtful. 

 Acer spicatum. This is almost certainly absent now, l:ut its habitat is such that 



it could hanlly 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 Paeifie Coast." 

 Antennaria dioica. • Evidently a misdetermination. European species included in 



Gray's manual as "found by Geo. Thurber in 1844, but 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. 

 Jnncus polycephalus. Synonomy doubtful. 

 "Leimanthium virginicum Willd. " Synonomy doubtful. 

 Sparganium ramosum. Synonomy doubtful. 

 Potomogeton compressum. Synonomy doubtful. 

 Potomogeton gramineum. Synonomy doubtful. 

 Panicum nitidum. Synonomy doubtful. 

 Panicum involutum. Synonomy doubtful. 

 Aristida stricta? Queried by Bigelow. 

 Elymus villosus. Synonomy doubtful. 

 Isolepis capillaris. Synonomy doulitful. 

 Carex acuta. Synonomy doubtful. 

 Carex ance])s. Synonomy doubtful. 

 Carex arida. Synonomy doubtful. 

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



Ohio specimens known. 

 Carex paniculata. Synonomy doubtful. 

 Carex sylvatica? Queried by Bigelow. 

 Carex tentaculata. Synonomy dnulitful. 

 Carex tetanica? Queried by Bigelow. 

 Equisetum limosum? Queried by Bigelow. 



He further rej)orts a very consider!il)le iiumhcr of plants which are not other- 

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

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

 but many are verv rare if. ind I. tlicy are still to l>e found in the area. It does 



