ADDITIONS TO THE FLORA OF THE WILCOX GROUP. 



described as Artocarpoides urilcoxensis. 12 This 

 was more elliptical in outline, widest medianly 

 and pointed at both ends, with fewer, thinner 

 secondaries, less closely set tertiaries, and more 

 open areolation. 



The genus Artocarpoides was founded by 

 Saporta for certain forms from the Paleocene 

 of Sezanne, France, that he compared with the 

 existing entire-leafed species of Artocarpus, 

 which they really greatly resemble. Schenk 13 

 considered them to be related to the Juglanda- 

 ceae, but I fail to see any basis for this com- 

 parison. Among the French forms a consider- 

 able resemblance to the present species is 

 shown by Artocarpoides conocephaloidea Sa- 

 porta, 14 a relatively small form, and a very 

 great resemblance by Protoficus s< zannensis Sa- 

 porta 15 and P. insignis Saporta." 1 Among 

 existing forms of Moraceae considerable re- 

 semblance is also shown by the tropical Ameri- 

 can genus Brosimum Swartz, which ranges from 

 the West Indies and Central America to Brazil, 

 and the tropical American genus Coussapoa 

 Aublet, which has about 15 existing species 

 with a similar range and which is found fossil 

 in the Tertiary of Venezuela, southern Mexico 

 (Miocene and Pliocene), ami Bolivia. For ex- 

 ample, the present species resembles a tropi- 

 cal American leaf figured by Ettingshausen and 

 called Artocarpus rigida Linne. Whether 

 Ettingshausen confused the oriental Artocarpus 

 rigida of Blume or whether his leaf was an 

 American species of Coussapoa or some related 

 genus I do not know, nor is it material, for in 

 any case the resemblance between the fossil 

 and certain recent Moraceae is emphasized. 



It is possible that these Wilcox forms are 

 more closely related to these last-named genera 

 than they are to Artocarpus, but they are 

 surely referable to the Moraceae. 



The present species is named for the col- 

 lector, Prof. O. M. Ball. 



Occurrence: Goss pit, half a mile east of 

 Mansfield, De Soto Parish, La.: collected by 

 0. M. Ball. 



"Berry, E. W., U. S. Geol. Survey Prof. Paper 91, p. 194, pi. 109, 

 fig. 5, 1916. 

 13 Schenk, August, Palaeophytologie, pp. 4M, 477, lsmi. 

 » Saporta, G. de, op. cit., p. 68, pi. 7, fig. 6, 1S68. 

 !■ Idem, p. 67, pi. 6, fig. 1. 

 ■a Idem, p. 68, pi. 6, figs. 2-4. 



Genus FICUS LINNE. 

 Ficus mississippiensis (Lesquereux) Berry. 



Plates VI, VII. and VIII. 



Cinnamomum mississippiensis Lesquereux, in Dana, 



Manual of geology, 1st ed., p. 513, fig. 794, 1866; 

 Am. Philos. Soe. Trans., vol. 13, p. 418, pi. 19, 

 fig. 2, 1869. 

 Knowlton, Am. Geologist, vol. 16, p. 308, 1895; U. S. 

 Geol. Survey Prof. Paper 101, p. 320, pi. 89, fig. 2, 

 1917. 

 Berry, U. S. Geol. Survey Prof. Paper 91, p. 298, 

 pi 37, fig, 2. 1910. 

 Ficus planicostata Lesquereux, U. S. Geol. and Geog. 

 Survey Terr. Ann. Kept, for 1872, p. 393, 1873; 

 Tertiary flora, p. 201. pi. 31. ligs. 1-S, 10-12, 1878. 

 ?Newberry, (J. S. Geol. Survey Mon. 35, p. SS, pi. 10, 



fig. 1, 1898. 

 Cockerell, Colorado Univ. Studies, vol. 7, p. 151, 1910. 

 Ficus clintoni Lesquereux, U. S. Geol. and Geog. Survey 



Terr. Ann. Rept. for 1S72, p. 393, 1873 

 Ficus planicostata goldiana Lesquereux, idem for 1873, 

 p. 399, 1874; Tertiary flora, p. 202, pi. 33, figs. 1-3, 

 1878. 

 Ficus ps'eudopopulus Lesquereux, U. S. Geol. and Geog. 

 Survey Terr. Bull., vol. 1, p. 387, 1875; idem, Ann. 

 Rept. for 1874, p. 313, 1870; Tertiary flora, p. 204, 

 pi 34, figs, la, 2. 

 Berry, U. S. I tool. Survey Prof. Paper91, p.' 200, pi. 37, 



figs. 3-5; pi. 113, fig. 3, L916. 



Knowlton, U. S. Geol. Survey Prof. Paper 101, p. 304, 



pi. 72, figs. 2-4; pi. 73. figs. 1, 2; pi. 112, tig. 3, 1918. 



Ficus occidentalis ( Lesquereux i Lesquereux, Tertiary 



flora, p. 200, pi. 32, fig. 4, 1878; Mus. Comp. Zool. 



Bull., vol. 16, p. 50, 1888. 



Penhallow, Report on Tertiary plants of British 



Columbia, p. 55, 1908. 

 Berry. U. S. Geol. Survey Prof. Paper 91, pp. 121, 



197, pi. 28. fig. 3, 1916. 

 Knowlton, U. S. Geol. Survey Prof. Paper 101, p. 331, 

 pi. 72, fig. 1, 1918. 

 Dombeyopsis occidentalis Lesquereux, IT. S. Geol. and 

 Geol. Survey Terr. Ann. Rept. for 1872, p. 380, 1873. 

 Ficus planicostata clintoni Knowlton, U. S. Geol. Survey 

 Bull. 152, p. 103, 1898; U. S. Geol. Survey Prof. 

 Paper 191, p. 303, pi. 76, fig. 3, 1918. 

 Ficus planicostata latifolia Lesquereux, U. S. Geol. and 

 Geog. Survey Terr. Ann. Rept. for 1872, p. 393, 

 1873; Tertiary flora, p. 202, pi. 31, fig. 9, 187S. 

 Berry, U. S. Geol. Suryey Prof. Paper 91, p. 199, 1916. 

 Ficus latifolia Knowlton (not Kunth, 1846), TJ. S. Geol. 

 Survey Hull. 152, p. 102, 1898; U. S. Geol. Survey 

 Prof. Paper 101, p. 304, 1917. 

 Ficus cockerelli Knowlton, U. S. Geol. Survey Bull. 696, 



p. 273, 1919. 

 Ficus planicostata um < ima Berry, U.' S. Geol. Survey Prof. 



Paper 91, p. 199, pi. 34, fig. 3, 1916. 

 Ficus planicostata Lesquereux. Hollick, Louisiana Geol. 

 Survey Special Rept., p. 282, pi. 36, 1888. 



