FLORA OF THE WOODBIXE SAND AT ARTHURS BLUFF, TEX. 



161 



in diameter, bluntly pointed, and not tapering 

 to any appreciable extent. A few of these 

 lateral branches fork pseudodichotomously, 

 and some of them give off toward their distal 

 ends tiny lateral branchlets less than 1 centi- 

 meter in length and about 1 millimeter in 

 diameter. 



The general proportions are thus decidedly 

 different from those of the supposed parent 

 type. The leaves are slightly smaller and 

 smoother and relatively somewhat more elon- 

 gated, at the same time lacking the apical 

 papilla and the convergent striae. The form 

 is much more graceful in appearance than the 

 type and in its general aspect suggests the 

 Lower Cretaceous genus ArtJirotaxopsis of 

 Fontaine. 



Wliile tiny species of Brachyphyllum like 

 Brachijphyllum microcladum Saporta, of the 

 Neo-Jurassic, have been described, the new 

 variety is even more slender than Bradiy- 

 pJiyllum gracile Brongniart, of the Jurassic. 

 The most closely allied form known appears 

 to be one from the Albian of Buarcos, in Por- 

 tugal, described by Saporta '" us BmcJty- 

 phyllum obesiforme elongatum. The present 

 form also shows considerable resemblance 

 to BrachypJiyllum crassicaulc Fontaine, of the 

 Patapsco formation in Mar^dand and Virginia. 



Tliis variety is abundant tliroughout the 

 Tuscaloosa formation anrl in the basal part 

 of the Eutaw formation in Alabama and west- 

 ern Georgia and occurs also in the Woodbine 

 sand of Texas but is known in Maryland only 

 from a single locality. It is also confuied to a 

 single locality in North Carolina, where it is 

 not at all uncommon but is not especially well 

 preserved. 



Phylum ANGIOSPERMOPHYTA. 



Class DICOTYLEDONAE. 



Order MYEICALES. 



Family MYRICACEAE. 



Genus MYRICA De CandoUe. 



Myrica emarginata Heer. 



Myrica emarginata Heer, Flora fos.silis arctica, vol. 6, Abt. 



2, p. 66, pi. 41, fig. 2, 1S82. 



Lesquereux, The flora of the Dakota group, p. 67, pi. 



12, fig. 1, 1892. 

 Newberry, The flora of the Amlioy flays, p. 62, pi. 41, 



figs. 10, 11, 1896. 

 Berry, New Jei-sey Geol. Survey Bull. 3, p. 104, pi. 

 10, fig. 5, 1911; U. S. Geol. Survey Prof. Paper 

 112, p. 73, pi. 13, fig. 4, 1920. 



" Saporta, Gaston de, Contributions k la flore fossile du Portugal, p. 

 176, pi. 31, fig. 14,1894. 



Heer's clescription, pul)lished in 18S2, is as 

 follows : 



M. foliis olilongis, integerrimis, apice emarginatis, basi 

 attenuatis, nervis secundariis subtilissimis. 



This species, which was described from speci- 

 mens collected in the Atane beds of Greenland, 

 has been recorded from the Raritan and Tusca- 

 loosa formations of the Atlantic Coastal Plain 

 and from the Dakota sandstone of the Western 

 Interior. It is somewhat variable in form 

 but may be characterized as follows: 



Leaves obovate, widest at the rounded, 

 truncate, and more or less emarginate apex, 

 with entire margins narrowing to the cuneate 

 base. Midrib mediumly stout. Secondaries, 

 five thin pairs, subopposite, diverging from 

 the midrib at angles of about 4,5°, campto- 

 drome. 



The reference of this species to the genus 

 Myrica is entirely problematic. It is astonish- 

 ingly close to a form from Niederschoena, 

 Saxony, described by Engelhardt " as Mimii- 

 sops baUofaevides. 



Myrica longa (Heer) Heer. 



Plate XXXIX, figure 5. 



Protfoides lotigus Heer, Flora fossilis arctica, vol. 3, Abt. 



2, p. 110, pi. 29, fig. 8b; pi. 31, figs. 4, 5, 1874. 

 Dawson, Roy. Soc. Canada Trans., vol. 1, sec. 4, p. 



22, pi. 2, fig. 8, 1883. 

 Fric, Archiv naturw. Landes. Bohmen, vol. 4, No. 1, 



pp. IS, 94, 1878. 

 Myrica lowja (Heer) Heer, Flora fossilis arctica, vol. ti, 



Abt. 2, p. G.5, pi. 18, fig. 9b; pi. 29, figs. 1.5-17; pi. 



33, fig. 10; pi. 41, fig. 4d, 1882; vol. 7, p. 21, 1883. 

 Lesquereux, U. S. Geol. Survey Mon. 17, p. 67, pi. 



3, figs. 1-6, 1892. 



Bartsch, Iowa Univ. Lab. Nat. Hist. Bull., vul. 3, 



p. 180, 1896. 

 Knowlton, IT. S. Geol. Survey Twenty-first Arm. 



Kept., pt. 7, p. 314, pi. 39, fig. 7, 1901. ' 

 Ben-y, Torrey Bot. Club Bull., vol. 33, p. 170, 1906; 



Maryland Geol. Survey, Upper Cretaceous, p. 812, 



pi. 57, figs. 1-3, 1916; Torrey Bot. Club Bull., vol. 



44, p. 175, 1917; U. S. Geol. Survey Prof. Paper 



112, p. 74, 1919. 



Leaves of various sizes, linear to lanceolate, 

 with a stout midrib, numerous thin, ascending, 

 camptodrome secondaries, entu-e margins, ob- 

 tusely pointed ape.x, narrowly decuiTent base, 

 and long, stout petiole. 



This species, which Heer described as a 

 Proifoidts and subsequently transferred to 

 the genus Myrica, has a particularly wide 



1^ Engelhardt, Hermann, Natiirwiss. Oesell. Isis in Dresden Abh. 7. 

 Jahrg. 1891, p. 98, pi. 2, flg. 13, 1S92. 



