FLORA OF THK WOdimiNK SAND AT AHTIUHS BLUFF, TEX. 



r 



Tlio present species is also very similar to 

 Aralia (hcurnns Velenovsky," from the 

 Cenomanian <tf Bohemia, whirh, however, has 

 relatively narrower and more elonfjated lobes, 

 with coarser teeth, and deeper sinuses. 



In reportintj on a collection made by 

 Vati<ihan at Arthurs BlufV. 'Pex., and now in 

 the United StatesXational Museum. Knowlton" 

 mentions Aralia weIl>n<jtoinana vauiihanii n. 

 var. as the most abundant form observed. 

 This variety was distinjiuishcd from the type 

 "by its trilobate form, more slender lobes, and 

 entire marfjins." A study of this material luis 

 satisfietl me that it is not distinct from the 

 normal Aralia wellingtoniana, which shows 

 every ojradation in size and ranges from entire 

 to more or less completely toothed margins. 



Aralia saportana Lesquereux? 



Aralia saportana Lesquereux. U. S. Geol. and Geog. Sur- 

 vpy Terr. Bull., vol. 1, p. .304. 1875 [1876]; idem, 

 Ann. Kept, for 1874, p. 3.50. pi. 1. figs. 2, 2a, 1870; 

 r. S. Geol. Survey Terr. Rept., vol. 8 (Cretaceous 

 and Tertiar>' floras^, p. (il. pi. 8, figs. 1. 2: pi. 9, figs. 

 1, 2, 1883. " 



Aralia trellingtoniana Lesquereux, Flora of the Dakota 

 group, p. 131 (part I. pi. 22, figs. 2, 3 (not pi. 21, fig. 

 1). 1892. 



This species was described by Lcsfjuereu.x as 

 follows : 



Leaves large, subcoriaceous. triple-nerved and five- 

 lobate by di\Tsion of the lateral norvos, fan-shaped in out. 

 line, narrowed in a curve or broadly cunoate. and decur- 

 ring to a long, slender petiole; lobes narrowly lanceolate or 

 linear-lanceolate, acute or blunt at the apex, equally 

 diverging, distantly dentate from below the middle up- 

 ward; secondary nerves subcamptodrome. 



This beautiful species is known by numerous finely 

 pre8er\-ed specimens. The leaves. 9 to 20 centimeters 

 long from the top of the petiole to the suinit of the middle 

 lobe, are of the same width botwoen the points of the 

 lower lateral lobes; the petiole is long and comparatively 

 slender, though appearing thick upon one of the speci- 

 mens, probably enlarged and flattened by compression. 

 The preserved broken part on one of the leaves measures 5 

 centimeters. The lobes cut down to about two-thirds of 

 the leaves are narrowly lanceolate, slightly narrower near 

 the obtuse sinuses, equally diverging, the lower lateral 

 ones much shorter, curved down, and decurring to the 

 base of the leaves. The leaves, triple-nerved from the 

 di\Tsion of the primary nerves a little aliove tlie Itase, 

 become tive-ner\ed from the forking of the lateral nerves 

 at a short distance from their base. The secondary veins 

 emerge at an acute angle of 30°, curve in ascending to the 

 borders, and sometimes enter the teeth by their ends; the 

 upper more generally follows close to the borders in fes- 



" Velenov.>iky, Joset, Die Flora dcr bohniische Kreidcforniation, 

 pt.3, p. 11,ijI.4, fig5. 5-7, 1S84. 



« Knowlton, F. H., U. S. Geol. Suney Twenty-first Ann. Kept., 

 pt.7, 317, 1901. 



toons, emitting under the teeth short branches which enter 

 them. There arc not an>- Intel nieiliatc tertiary veins, but 

 the nervilles are strong, often continuotis. ana,-<toni(i.>jiiig in 

 the middle of the areas and forming by siilidivisinns a 

 small quadrangular aroolalion. 



The material from Arthurs Bluff, Te.x., is 

 scanty and nut |)ositively determined. 



Family CORNACEAE 



Genus CORNOPHYLLUM Newberrj- 



Cornophyllum vetustum Newberry. 



Cornophylbim iiliislinn Ni-whorry The flora of the Amliov 

 cla\'s. p. nil. pi. 19, n.;. 10, 1890. 

 Berry, Xew .lersey Geol. Survey Bull. :!, ]i. l9(i. 191 1 ; 

 Torrey Bot. riul> Bull., vol. 39. p. 404, 1912; U. S. 

 Geol. Survey Prof. Paper 112. p. 129. 1919. 



Leaves elliptical, 7 to 8 centimeters in length 

 by about 4 centimeters in maximum width, 

 with an acute apex and base, the base slightly 

 decurrent and ine<|uilateral. Margin entire, 

 very slightly and inconspicuously imdulate. 

 Midrib slender and straight. Secondaries 

 slender, about seven pairs, opposite or alter- 

 nate, branching from the midrib at angles of 

 about 45° and strongly curved upward, ap- 

 pro.ximatcly parallel and camptodrome: they 

 increase in length from the ape.x to the base, 

 the lower ones sweeping upward in stnmg 

 arches parallel with the margin and all drawn 

 inward toward the apex. 



With the exception of the delicate and .some- 

 what fle.xuous character of the venation, these 

 leaves are strictly comparable with those of 

 Cornus, good species of which, very similar to 

 this species, occur in the Dakota sandstone of 

 the West, in Greenland, and in the Magothy 

 formation of Maryland. 



This species is found also in the Karitan 

 formation of Nf^w Jersey and tiie Tuscaloosa 

 formation of Alabama. 



Order ERICALES? 

 FamUy ERICACEAE? 

 Genus ANDROMEDA Liiine 

 .\ndromeda novaccacsareae Hollick. 

 Plate XXX\^II, figure 1. 

 Andromeda noi<aecaemreae Hollick, in Xewberr\ . The 

 flora of the Amboy clays, p. 121, pi. 42. fi»?. 9-12. 

 28-31, 1890. 

 Smith, On the geology of the Coastal Plain of Alabama. 



p. 348, 1894. 

 Berry, Torrey Bot. Club Bull., vol. 33, p. 181. 1906; 

 vol. 34, p. 204. 1907; vol. 37. p. 29. 1910; vol. .39. p. 

 40.5, 1912; vol. 43, p. 301, 1910; vol. 44. p. 188. 1917; 

 New .lersey Geol. Survey Bull. 3. p. 204, pi. 2.5. 

 fig. 6, 1911; r. S. Geol. Survey Prof. Paper 84. p. 

 58, pi. 14, figs. 5, fi.1914; V . S. Geol. Sur\ey Prof. 

 Paper 112. p. 129 (parti, pi. 30. figs. 1. 2, 1919. 



