(92) 



Lesquereux (Fl. Dak. Group, 249) characterizes these 

 leaves as follows: "Base decurrent, primary nervation pal- 

 mately trifid and supra-basilar," but he repeatedly fails to 

 conform to his definition. Thus his A. acerifolia^ A. tenui- 

 vervis, A. dissecta and A. subemarginata lack the decurrent 

 base, as do also five of Newberry's Raritan forms. The pri- 

 maries are generally subbasal and are basal in Lesquereux's 

 A. quingticpartita, A. notata, A. dissecta and A. Masoni. 

 I have been at a loss to distinguish between Sterculta and 

 Aralia in the Matawan material ; no mutually exclusive 

 characters can be gathered from the published descriptions 

 or figures, and as it would be useless to attempt a revision 

 without an examination of all the collected material, I have 

 been forced to follow the pernicious precedent above al- 

 luded to. 



Aralia Towneri Lesq. 



Aralia Towneri Lesq. Bull. U. S. Geol. & Geog. Surv. 

 Terr, i : 394. 1876 ; Ann. Rep. ibid. 1874 : 349. pL 4. 

 /. 3. 1876; Cret. & Tert. Fl. 62. //. 6./. 4. 1883 ; Fl. 

 Dak. Group, 132. pi. 2j. f. jy 4; fl. 31./. i. 1892. 

 Hollick, Trans. N. Y. Acad. Sci. 16: 132. pi. 14./. 

 II, 12. 1897. 

 Described originally from the Dakota Group of Kansas, 

 Hollick has doubtfully referred two fragments from the clays 

 near Cliffwood to this species. These fragments are so in- 

 complete that the form of the leaf is more or less conjectural. 

 The secondaries are straighter than in Lesquereux's speci- 

 mens and branch from the primaries at a wider angle. At 

 the same time they seem to differ from my specimens from 

 this formation which I have referred \.o Aralia Ravniana Heer. 



Aralia Ravniana Heer. PI. 46./. 7 ; pi. 53. f. 2 ; pi. 57./. i • 

 Aralia Ravniana Heer, Fl. Foss. Arct. 6-: 84. pi. 38./. 



/, 2. 1882. 

 The specimens from Cliffwood figured above are identical 



with Heer's Aralia Ravniana from the Atane schists at 



