FOSSIL FLORA. 691 



2.8 cm. broad. "When entire, it must have been nearly or quite 10 cm. 

 in length. 



This species is evidently related to Carya (Hicoria) antiquomm Newby., 

 and it may possibly be an anomalous form of that species. It appears to 

 differ essentially, however, in being very much smaller, less unequal-sided, 

 and in having larger and less numerous teeth. The secondaries are much 

 the same in both, except that the}' are more decidedly camptodrome in 

 C. antiquorum. 



It is also suggestive of Juglans nigella Ung., as identified by Ward 1 from 

 the lower Yellowstone River. 



Habitat: Northeast side of Crescent Hill, opposite small pond, at an 

 altitude of about 7,500 feet; collected by F. H. Knowltoi: and G. E. 

 Culver, July 27, 1888. 



Hicoria culveri n. sp. 



PL LXXXIII, fig. 7. 



Leaflets thin, slightly insequilateral, rather long- obovate, narrowed from 

 above the middle to a long wedge-shaped base, and upward to an acuminate 

 apex; margin toothed from above the lower third, teeth flat, obtuse; mid- 

 rib slender; secondaries about 10 pairs, alternate, irregular, camptodrome, 

 arching upward and joining by a broad curve, with branches outside enter- 

 ing the teeth; intermediate secondaries occasional, joining the secondary 

 below; nervilles very irregular, broken; finer nervation forming irregular 

 meshes. 



The fine specimen figured appears to be a terminal leaflet, as it is only 

 slightly ingequilateral. It is perfect, except at the apex It is preserved 

 for 8 cm., and was probably 9.5 or 10 cm. long. It is 2.7 cm. broad at the 

 widest point, which is high above the middle. From this point it tapers 

 regularly to the base and appears to pass rather abruptly to an acuminate 

 apex. 



This species has the same shape and arrangement as Rhus bendirei Lx., 2 

 from John Day Valley, Oregon, but differs in the serration of the margins 

 and in the finer nervation. It seems likely that Lesquereux's species is a 

 Hicoria rather than a Rhus. 



•Types of the Laramie PI., p. 33, PI. XV, fig. 1. 



- Proc. U. S. Nat. Mus., Vol. XI, 1838, p. 15, PI. IX, fig- 2 - 



