FLORA OF THE WOODBINE SAND AT ARTHURS BLUFF, TEX. 



179 



from the Cenomanian of Niederschoena in 

 Saxony, and from various localities within the 

 Dakota sandstone; and with the exception of 

 the fragments from Marthas A'ineyard and 

 Long Island, which are of questionahle identity, 

 it is common in the Raritan and Magothy for- 

 mations, or their homotaxial etiuivalents, from 

 New Jersey to Alabama. 



Its most marked character is the prominence 

 of its tertiary areolation. It is common at 

 various localities in the lower part of the Tus- 

 caloosa formation of western Alabama and con- 

 tinues upward into those beds in Hale County 

 which have been placed in the basal portion of 

 the Eutaw formation and into the Coffee sand 

 member of that formation in Tennessee. It is 

 undoubtedly present, but not common, in the 

 collections from Arthurs Bluff, Tex. 



Order BTJBIALES. 



Family CAPRIFOLIACEAE. 



Genus VTBtTRNirM Linng. 



Viburnum robustum Lesquereux. 



Plate XXXIX, figure 4. 



Viburnum robustum Lesquereux, U. S. Geol. Survey Mon. 



17, p. 120, pi. 20, figs. 4-6, 1891 [1892]. 

 Knowlton, U. S. Geol. Survey Twenty-first Ann. 



Kept, pt. 7, p. 317, 1901. 

 Berry, Torrey Bot. Club Bull., vol. 39, p. 405, 1912. 



Leaves shortly and broadly ovate, generally 

 widest below the middle, narrowing upward to 

 the obtuse tip. Base cuneate, slightly decur- 

 rent to the tliick petiole. Margins entire, often 

 somewhat undulate. Texture coriaceous. 

 Length 7 to 10 centimeters: maximum width 

 5 to centimeters. Petiole long and stout, 

 about 3 centimeters in length. Midrib stout. 

 Secondaries stout, ascending, somewhat irregu- 

 larly spaced, rather straight, camptodrome or 

 brachydrome. 



This species is represented by characteristic 

 specimens from Artliurs Bluff, Tex. It was 

 described originally from material collected in 

 Ellsworth County, Kans., and is not known 

 from other areas. 



POSITION UNCERTAIN. 



Genus TRICALYCITES Newberry. 



Tricalycites papyraceus Hollick. 



Plate XL, figure 9. 

 Tricalycites papyraceus Hollick, Torrey Bot. t'lub Bull., 



vol. 21, p. 63, pi. 180, fig. 8, 1894. 

 Newberry, U. S. Geol. Sur\ey Mon. 26, p. 132, pi. 46, 



figs. 30-38, 1896. 

 Hollick, New York Acad. Sci. Annals, vol. 11, p. 423, 



pi. 37, figs. 1, 2, 1898; New York Bot. Garden Bull., 



vol. 2, p. 40.5, pi. 41, fig. 3, 1902; IT. S. Geol. Sur\-ey 



Mon. .50, p. 109, pi. 5, figs. 8-12, 1906. 

 Berry, Torrey Bot. Club Bull., vol. 31, p. 81, pi. 1, 



fig. 4, 1904; vol. 39, p. 405, 1912; New Jersey Geol. 



Survey Ann. Rept. for 1905, p. 139, 1906; New 



Jersey Geol. &va\ey Bull. 3, p. 221, 1911; U. S. 



Geol. Survey Prof. Paper U2, p. 137, pi. 28, figs. 



1-5, 1919. 



This very characteristic tri-alate fossil is 

 abundant in the middle and upper parts of the 

 Raritan formation of New »Jersey. It occurs 

 sparingly in the overlying Magothy formation 

 and is very common in the lower part of the 

 Tuscaloosa formation in western ^Uabama. It 

 is abundant at .\rthurs Bluff, Tex., the present 

 collection containing eight typical specimens, 

 some of them complete. They are in exact 

 agreement with the Tuscaloosa forms and 

 demonstrate what is discussed at length in my 

 account of the Tuscaloosa flora, that the 

 approximately parallel longitudinal venation of 

 the wings is really a more or less forked and 

 anastomosing venation, thus allying these 

 fossils in a remote way with such modern genera 

 as Vatica, of the Dipterocarpaceae. 



This form, despite its uncertain botanic 

 aflrinity, is an important stratigraphic type, 

 readily and surely recognized at all times. It 

 characterizes the Tuscaloosa, Woodbine, Rari- 

 tan, and Magothy formations but has never 

 been discovered in the Dakota sandstone. 

 Genus CABPOLITHUS of authors. 

 Carpolithus sp. 1. 



A coriaceous, ovate, concavo-convex scale or 

 fruit of unknown botanic affinity, represented 

 by a single specimen in the Woodbine sand at 

 Arthurs Bluff, Tex. It is of no %alue, either 

 geologic or botanic, but is entirely unlike 

 previou.sly described forms. 



