152 CONTRIBUTIONS TO PAL.EONTOLOGY 



The genus Apeibopsis was originally defined by Heer ' on the basis of globular, capsular 

 fruits and large, ovate, entire-margined leaves. Both the fruits and the leaves were said to 

 resemble those of the living Apeiba Aubl., of tropical America. In his original discussion of 

 Apeibopsis'! discolor, Lesquereux questioned the reference to Apeibopsis of Heer and remarked 

 that he could not compare either his specimens or those of Heer to any living species of Apeiba. 



Occurretice—LocaMties P3651, P3652, P3857. 



Collection~\J. C. Mus. Pal., No. 2555. 



Celastrus? taurinensis Ward 

 (Plate 16, Fig. 1) 



Cel(i.ilru.i laurinensis Ward, U. S. Geol. Surv. 6th Ann. Rept., 555, pl. 52, figs. 15, 16, 1885; U. S. Geol. Surv. 



Bull. 37, 79, pl. 34, figs. 5, 6, 1887. Hollick, Geol. Surv. Louisiana, Spec. Rept. 5, 285, pl. 46, fig. 1, 1899. 



Knowlton, Proc. Washington Acad. Sci., vol. 11, 213, 1909. Berry, U. S. Geol. Surv. Prof. Paper 91, 267, 



pl. 60, figs. 1-3, 1916; Canada Geol. Surv. Mem. 182, 42, 1935. Dorf, Carnegle Inst. Wash. Pub. No. 



508, pt. I, 65, pl. 12, figs. 1-3, 1938; Bull. Geol. Soc. Amer., vol. 51, 218, 220, 221, 222, 225, 226, 228, 232, 



1940. 

 Celastrus ovatus Ward, U. S. Geol. Surv. 6th Ann. Rept., 555, pl. 53, fig. 7, 1885; U. S. Geol. Surv. BuII. 37, 



81, pl. 36, fig. 1, 1887. 

 Celastrus wardii Knowlton and CockereU, U. S. Geol. Surv. Bull. 696, 160, 1919. 

 Celastrus curnnerns Ward, U. S. Geol. Surv. 6th Ann. Rept., 555, pl. 53, figs. 9, 10, 1885; U. S. Geol. Surv. 



BuII. 37, 82, pl. 36, figs. 3, 4, 1887. 

 Aralia tauri^itnsis (Ward) Sanborn, Carnegie Inst. Wash. Pub. No. 465, I, 27, pl. 10, figs. 1, 2, 4, 1935. 



There are only 5 specimens in the Lance Creek collections which are referable to this species. 

 Althougli thc figured specimen is lacking most of the left half of the leaf, its restored shape and 

 its venation and marginal characters are essentially similar to the characters of the figured and 

 type specimens of Celastrus taurinensis from the "Fort Union" formation. AU the type and 

 figured specimens of the species here cited, moreover, are of the same character. 



As was pointed out in my discussion of the Medicine Bow specimens referred to this species, 

 it is unfortunate that leaf impressions of this form are rare in the Lance-Laramie fioras. Only a 

 larger suite of better-preserved specimens could .settle the point as to whether or not the more 

 lanceolate shape of the late Cretaceous examples is consistent enough to be used as a specific 

 feature of distinction from the abundant Paleocene forms. 



The uncertain botanical aflinity of this species has been pointed out in my previous report. 



Occurrence — Locality P3051. 



Collection~l! . C. Mus. Pal., Plesiotype No. 2556. 



Cinnamomum? affine Lesquereux 



(Plate 16, Fig. 2) 



Cinnamomum affine Lesquereu.x (in part), Rept. U. S. Geol. Surv. Terr., vol. 7, 219, pl. 37, figs. 1-4, 7 only, 

 1878. Knowlton, U. S. Geol. Surv. Prof, Paper 130, 145, pl. 8, fig. 4, pl. 17, fig. 6, 1922. Dorf, Carnegie 

 Inst. Wash. Pub. No. 508, pt. I, 60, pl. 9, figs. 3, 4, 1938. Brown, U. S. Geol. Surv. Prof. Paper 189, 250, 

 pl. 53, figs. 1, 2, 1939. Dorf, BuU. Geol. Soc. Amer., vol. 51, 218, 222, 225, 1940. 



This species is representcd in the collections by the single complete figured specimen and 

 several fragments. Although somewhat larger than the tj^pe and figured specimens of this species, 

 the Lance Creek specimen does not differ otherwise in the essential characters of shape, venation, 

 and margin. As in the specimens from the Medicine Bow and Colgate floras, the indistinct pair 

 of veins below the lateral primaries appears to be a rather constant feature of the larger leaves of 

 this species. This feature has also been observed recently on a Laramie specimen referable to 

 this species.' 



As has been previously pointed out, the resemblance of the leaves of this species to those 

 of the modern genus Cinnamomum is not very clo.se. It does not seem advisable, however, to 

 make any change of name until a positive gcneric or family relationship is found. 



Occurrence — Locality P3652. 



Collection — U. C. Mus. Pal., Plesiotype No. 2557. 



' Heer, O., Fl. Tert. Helveti«, vol. 3, 37-^1, pl. 109, figs. 9-11, pl. 118, figs. 24-29, 1859. 

 ' U. S. National Museum collectiong, gpecimen No. L7. 



