8 



SHORTER CONTRIBUTIONS TO GENERAL GEOLOGY, 1919, 



unlike leaves from the Raton which have been 

 referred to the European Tertiary species 

 Juglans acuminata Al. Braun. Possibly also 

 some of the leaves that have been referred to 

 Nectandra lancifolia (Lesquereux) Berry rnay 

 represent this species of Asimina} 



Order SAPINDALES. 



Family ILICACEAE. 



Genus ILEX Linne. 



Ilex barillensis Berry, n. sp. 



Plate III, figure 4b. 



Sessile or subsessile, slightly inequilateral 

 leaves of relatively small size, about 6 centi- 

 meters m length and 2.6 centimeters in maxi- 

 mum width at or below the middle; with a 

 pointed tip, a broadly rounded abrupt base, a 

 conspicuously toothed margin, and a sub- 

 coriaceous texture. The margmal teeth are 

 large, remote, and irregularly spaced, tmUke 

 on the opposite margins; some approach a 

 dentate form, others are serrate, and others 

 salient-serrate. The midrib is stout, rather 

 promment, curved. Secondaries fairly stout, 

 about eight subopposite to alternate pairs; 

 they diverge from the midrib at approximately 

 regular mtervals and are camptodrome, sending 

 tertiary branches into the marginal teeth 

 where those are present. Tertiaries form an 

 open areolation tending to be quadrangular 

 in appearance. (See fig. 2.) 



Tliis species, which is ob- 

 viously new, is unfortmiately 

 represented by a scanty amount 

 of material. In general form 

 it greatly resembles some of the 

 existmg western Uveoaks, as 

 for example Quercus agrifolia 

 Nee and Quercus chrysolepis 

 Liebmann, or the so-called 

 black oak, Quercus emoryi Tor- 

 rey, of the momitain ranges of 

 the arid Southwest. The ve- 

 nation, however, is unhke any- 

 thing occurrmg m Quercus, in 

 which the areolation is closer 

 meshed and different m char- 

 acter and the secondaries taper more abruptly, 

 are less regularly spaced or curved, and are cras- 



FiGURE ?. — Restora- 

 tion of the leaf of Ilez 



. barillensis Berry 

 shown in Plate in, 

 figure 4b. 



1 Cf. Knowlton, F. H., U. S. Geol. Survey Prof. Paper 101, pi. 90, 1 

 1, 1918. 



pedodrome in the toothed-margin forms. On 

 the other hand, the venation in both its gross 

 and minute features is topical of the genus 

 riex, and the general form is not unhke that 

 of numerous modem species of that genus, as 

 for example the serrated forms of the oommon 

 Enghsh holly or our oAvn Flex opaca Aiton. 

 Moreover, the plants associated with the fossil 

 species lend credence to the view that the 

 habitat was somewhat similar to that required 

 by our modern holly, namely, that it was a 

 bottom-land or mesophytic species, rather 

 than one of exposed, arid, or cool habitat. 

 While Ilex opaca ranges from Massachusetts to 

 Florida it is rare in the Allegheny Mountains 

 and finds its optimum habitat in the bottoms 

 of southern Arkansas and eastern Texas. 



Order THYMELEALES. 



Family LAITRACEAE. 



Genus OBEODAPHNE Nees. 



Oreodaphne pseudoguianensis Berry. 



Plate III, figures 1-3, 4a. 



Oreodaphne pseudoguianensis Beiry. U. S. Geol. Survey 

 Prof. Paper 91, p. 305, pi. 81, figs. 3, 4, 1916. 



Tliis species and Sahalites grayanus are by 

 far the most abundant forms m the basal tuffs 

 of the Barilla Mountams. The OreodapJine 

 was descrribed by me from the Wilcox Eocene 

 of Louisiana and contemporaneous beds in 

 Temiessee in 1916 as follows: 



Leaves narrowly elongate- lanceolate and falcate in 

 general outline, the apex gradually attenuated and the 

 bape somewhat shorter, acuminate. Length ranges from 

 15 to 18 centemeters. Maximum width, in the lower half 

 of the leaf, 1.7 to 2 centimeters. Margins entire, very 

 faintly undulate. Leaf substance very thick. Texture 

 decidedly coriaceous. Petiole long, stout, and curved, 

 about 3 centimeters in length. Midrib stout, prominent 

 on the lower surface of the leaf. Secondaries etout, prom- 

 inent on the lower surface of the leaf: three or four com- 

 monly suboppo&ite pairs of the same character, abo\e 

 which in the attenuated tip are numerous thin reduced 

 pairs, diverging at wide angles. The basal pair are 

 opposite and subbasal, diverging from the midrib at 

 angles of about 20°, rather straight in their course and 

 close to and parallel with the lower lateral margins. The 

 succeeding two or three pairs, generally subopposite, 

 arise at intervals of 1.5 to 2.5 centimeters. They diverge 

 at slightly wider angles, about 30°, and are regularly 

 curved and ascending, becoming parallel with the lateral 

 margins, along which they ascend for a considerable dis- 

 tance, and are eventually camptodrome. The second- 



