300 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.48. 



Genus PLANERA J. F. Gmelin. 

 PLANERA AQUATICA (Walter) J. F. Gmelin. 



Planera gmelini Michaux, Lesquereux, Amer. Journ. Sci., ser. 2, vol. 27, 1859, 



p. 365. 

 Planera aquatica (Walter) Gmelin, Berry, Journ. Geol., vol. 15, 1907, p. 343. 



Leaves of water elm were recorded by Lesquereux from the Chalk 

 Banks near Columbus in 1859 and more recently they have been found 

 in the late Pleistocene river terraces (Chowan formation of North 

 Carolina. They are included in the present collections from both 

 Hickman and Columbus. 



In the existing flora this species, which inhabits swamps and river 

 bottoms, ranges from North Carolina and southern Indiana south- 

 ward to Louisiana and Florida. 



Order RANALES. 

 Family MENISPERMACEAE. 

 Genus CEBATHA Forskal. 



CEBATHA CAROLINA (Linnaeus) Britton. 



Plate 12, figs. 3-5. 



Menispermum carolinum Linnaeus, Sp. PL, 1753, p. 340. 



Cebatha Carolina (Linnaeus), Britton, Mem. Torrey Bot. Club, vol. 5, 1894, p. 162. 

 Menispermum canadense Linnaeus, Knowlton in Glenn, Water Supply Paper 

 No. 164, 1906, p. 38. 



The present species, which'fs a slender vine, ranges from Virginia to 

 Illinois and Kansas and southward to Florida and Texas, inhabiting 

 stream banks and thickets bordering woodlands. The genus to which 

 it belongs contains about 30 species, all perennial climbers, the major- 

 ity confined to the tropical regions of both hemispheres. The present 

 species has not been heretofore found in the Pleistocene to the writer's 

 knowledge, although various members of the family are known as far 

 back as the middle Cretaceous. 



Large and small leaves are present in considerable abundance at 

 both Hickman and Columbus. 



Order SAPINDALES. 



Family ILICACEAE. 



Genus ILEX Linnaeus. 



ILEX (?), species. 



Plate 12, fig. 2. 



The single small leaf figured, which is tentatively referred to the 

 genus Ilex, was found at Hickman. 



