FLORA OF Tin; WOOPBIXE SAND AT ARTHURS BLUFF, TKX. 



179 



from the Cenomixnian of Niedcrschoena in 

 Siixoiiy, aiul from various localities within tlie 

 Dakota saiulstoiu'; and ^\itll the oxccptioii of 

 the fragments from ilarthas \'ineyard and 

 Long Island, which are of cincstionahle identity, 

 it is common in the Karitan and Magothy for- 

 mations, or their homotaxial efpiivalents, from 

 New Jersey to Alahama. 



Its most marked character is the prominence 

 of its tertiary arcolation. It is common at 

 various localities in the lower ]iart of the Tus- 

 caloosa formation of western Alahama and con- 

 tinues upward into those beds in Hale County 

 which have been placed in tli(> basal portion of 

 the Eutaw formation and into the Coffee sand 

 member of that formation in Tciuiessee. It is 

 undoubtedly present, hut not common, in the 

 collections from Arthurs Blufl', Tex. 



Order RTJBIALES. 



Family CAPRIFOLIACEAE. 



Genus VIBURNUM Linne. 



Viburnum robustum Lesquereux. 



Plate XXXIX, figure 4. 



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

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

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



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

 Herry, Torrey Bot. Club Bull., vol. 39, p. 40.5, 1912. 



Leaves shortly and broadly ovate, generally 

 widest below the middle, narrowing upward to 

 the obtuse tip. Base cuneate, slightly decur- 

 rent to the thick petiole. Margins entire, often 

 somewhat undulate. Texture coriaceous. 

 Length 7 to 10 centimeters: maximum width 

 5 to f) centimeters. Petiole long and stout, 

 about 3 centimeters in length. Midrib stout. 

 Secondaries stout, ascending, somewliat irregu- 

 larly spaced, rather straight, camptodrome or 

 hrachydrome. 



This species is represented by characteristic 

 specimens from .Vrthurs Blufl', Tex. It was 

 described originally from material collected in 

 Ellsworth County, Ivans., and is not known 

 from other areas. 



POSITION UNCERTAIN. 



Genus TRICALYCITES Newbcrrj'. 



Tricalycitcs pupyruceus HoUick. 



Plato XT., figure 9. 



Triralyriles pa pyraccu-ii lloUick, Torrey Hoi. ('lul> Hull., 



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



Newberry, U. S. Geol. Survey Mon. 26, p. 132, pi. 40, 



figs. 30-38, 1896. 

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

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

 vol. 2, p. 405, pi. 41, fig. 3, 1902; U. S. Geol. Survey 

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

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

 fig. 4, 1901; vol. 39, p. 40r,, 1912; New .Tersey (ieol. 

 Survey Ann. Kept, for 1900, p. 139, 1900; New 

 Jersey Geol. Survey IJull. 3, p. 221, 1911; V. S. 

 Geol. Survey Prof. Paper 112, p. 137, pi. 28, figs. 

 1-'), 1919. 



This very characteristic tri-alate fossil is 

 abundant iii the middle and upper parts of the 

 Raritan formation of New Jersey. It occurs 

 sparingly in tlio overlying Magothy formation 

 and is very common in the lower part of the 

 Tuscaloosa formation in western Alabama. It 

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

 cullectiiin 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 tite Tuscaloosa flora, that the 

 approximately parallel longitudinal venation of 

 the wings is I'eaily 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 

 affinity, is an important stratigraphic type, 

 readily and surely recognized at all times. It 

 characterizes the Tuscaloosa, Woodbine, Rari- 

 tan, and Magotliv formations but has never 

 been discovereil in the Dakota sandstone. 

 Genus CARPOLITHUS of authors. 

 Carpolitlius sp. 1. 



A coriaceous, ovate, concavo-convex scale or 

 fruit f)f unknown botanic aflinity, represented 

 by a single specimen in the Woodbine sand at 

 Arthurs BlufT, Tex. It is of no \ alue, either 

 geologic or botanic, but is entirely unlike 

 previou.sly described forms. 



