244 



LOWEK EOCENE FLOBAS OF SOUTHEASTERN NORTH AMERICA. 



ill Fayette County, Teim. (collected by L. C. 

 Glenn and E. W. Berry). 



Collection. — U. S. Xationiil Museum. 



SoPHORA REPAXDiroi.iA Bcrrv, n. sp. 



Plate XI.VIII. lljiuros (i and 7. 



Dtstiript'ion. — Leaflets of difTerent .sizes, ellip- 

 tical in general outline, the base broadly 

 rounded, and the apex somewhat narrowed and 

 rounded. Length ranges froni 4 to S centi- 

 meters. Maxinium width, at or below the 

 middle, ranges from 2.5 to 3. .5 centimeters. 

 Petiolule short and wide, spreading at the 

 point of attachment, about 1 to 2 millimeters 

 in length. Midrib stout and prominent. Sec- 

 ondaries thin, 9 or 10 opposite to alternate 

 unequally spaced pairs, diverging from the 

 midrib at angles of about 50°, curving regularly 

 upward, subparaUel, camptodrome. Tertiaries 

 obsolete. Leaf substance subcoriaceous. 



This species may be distinguished at once by 

 its repand margins. It is larger than any of 

 the other Wilcox species of Sophora, although 

 the larger leaflets of Sop/wro wilcoxiana Berry 

 are as large as the smaller leaflets of this species. 

 It may be differentiated from SopJiora unlcoxi- 

 ana by its repand margin, broader form, nar- 

 rowed apex, and by the flattening and widening 

 of its petiolule. It is found in association with 

 that species but is considerably less abundant. 



Occurrence. — Lagrange formation (in beds of 

 Wilcox age), Puryear, Henry County, Tenn. 

 (collected by E. W. Berry). 



Collection. — U. S. National Museum. 



Sophora lesqueeeuxi Berry, n. sp. 



Am 



Quereus myrtifolia. Lesquereux (not A\'illdenow) 

 Jour. Sci., 2d ser., vol. 27. p. 303, 18.M. 



Lesquereux, in Safford, J. M., Geology of Tennessee, 

 p. 427, pi. K, fig. 3, 1869. 



Loughridge, Report on the geological and economic- 

 features of the Jackson's purchase region, p. 196, 

 fig. 3, 1888. 



Description. — Leaflets shortly elliptical, 

 approaching orbicular in general outline, 

 slightly inequilateral. Apex slightly emar- 

 ginate. Base pointed, slightly deciu"rent. 

 Length about 3 centinietcrs. Maximum width, 

 in the middle part of the leaflet, about 1.75 to 

 2 centimeters. Margins entire, regularly 

 rounded. Texture coriaceous. Petiolule 

 long, stout, curved, about 4 millimeters in 

 Icng'th. Midrib stout and curved. Secon- 



daries thin, about four alternate, imefiuaUy 

 spaced pairs; they chverge from tlic nii(hih at 

 angles of about 55°, curve reguhuly upward in 

 a subparallel maimer, and are camptodrome in 

 tlie marginal region: those on the narrower 

 side of the lamina aic slightly more ascending 

 than those of the opposite side. Tertiaries 

 immersed in the leaf substance. 



When Lesquereux studied this matei-ial in 1 859 

 the deposits from which it came were thought 

 to be of Pliocene age, and he naturally searclied 

 the still existing flora of temperate North Amer- 

 ica for a similar form and identified the present 

 species with the scrub oak, Quereus myrttfoJia 

 Willdenow, a small tree ranging from South 

 Carolina to Louisiana near the coast. This 

 form is really not especially like the fossil, being 

 generally larger, obovate in outline, with a 

 decidedly different secondary venation, and a 

 well-marked and characteristic ciuerciform ter- 

 tiary areolation. If Lesquereux had extended 

 his comparisons to the existing flora of tropical 

 America he would have found numerous simdar 

 leaflets in the genus Sophora, so common in 

 modern strand floras of the Tropics. 



The present species is at once distinguishable 

 from the associated Wilcox species of Sophora 

 by its relatively long petiolule. It is relatively 

 much shorter and broader than the abundant 

 Sophora unlcoxicma Berry and much less inequi- 

 lateral than Sophora paJseolohifolia Berry. It 

 is closest to Sophora henryensis Berry but is 

 more inequdateral, has fewer and more ascend- 

 ing secondaries, and of course is readily distin- 

 guishable by its long petiolule. 



Occurrence. — Lagrange formation (in beds of 

 Wilcox age), SomervLUe, Fayette County, 

 Tenn. (coUected by J. M. Safl'ord). 



Collection. — Location of type unknown. Not 

 contained in any of the recent collections. 



Sophora mucronata Berry, n. sp. 



Plate LII, figure 4. 



Description . — Leaflets of mediuni size, 

 oblong-elliptical and somewhat inequilateral in 

 general outline. Length about 4.5 centi- 

 meters. Maxinunn width, at or slightly below 

 the middle, about 1 .6 centimeters. Tip evenly 

 and broadly rounded, the midrib being pro- 

 duced as a slender nuicro about 2 miUimc-ters 

 in length. Base rounded or in many specimens 

 broadly cuneate. Margins entire. Texture 

 subcoriaceous. Petiolule long, broad, and 



