ROSAI.F.S. 



239 



vcnalion in the basal rp<;iou of its loadcts. 

 Saporta ' figures a loaf from tho lower Oligo- 

 (•(Mi(> of southern France, whicii lie rc^fei's to the 

 largcr-lcafcMl speeics Diosp)/ros varians, a form 

 almost iiieutical in si/.e, outline, and venation 

 willi the s])(\cies un(i(U' discussion. 



1 estalilished the- gcnuis Gleditsiophvllum - 

 for an rp])(U' (Vi>taceous spcH'ies of Ca^sali)inia- 

 cea> from tlu^ Coastal Plain of North Carolina, 

 which is nuich lii\e tlie present species, espe- 

 cially tlie larger-leafed forms. It nuxy bear an 

 ancestral i(dationsliip to this lower Eocene 

 form wliicli is so exceedingly common at the 

 Purycar locality. 



The most similar fossil forms are the al)un- 

 dant leases from the Oligocene of Ilaering in 

 tlic Tyrol described by Ettingshauseu as ('a.fsia 

 zephyri ^ and Cassia pseudoglanduhsa.* Cassia. 

 pscudof/lamJuhsa in particidar is extremely 

 close to this American Eocene species. 



Occurrence. — Grenada formation, Grenada, 

 Grenada County, ]\Iiss. (collected by E. N. 

 Lowe and E. W. Berry). Beds of Wilcox age, 

 Calaveras Creek, Wilson County, Tex. (col- 

 lected by ^Vlcxanth'r Deussen) ; 1^ miles north- 

 east of Mansfield, De Soto Parish, La. (collected 

 by G. C. Matson and (). B. Hopkins). Lagrange 

 formation (in beds of Wilcox age), Purycar, 

 Henry County, Tcnn. (collected by E. W. 

 Berry). 



Collections. — U. S. National Museum. 



Gleditsiophyll™ ovatum Berry, n. sp. 

 Plate LI, figure 1. 



Description. — Leaflets small, ovate in general 

 outline, the tip broadly rounded and the base 

 narrowly cimeatc. Length about 1.5 centi- 

 meters. Maximum w'idth, midway between 

 the apex and th(> ])ase, about 6 millimeters. 

 Margins entire. Texture subcoriaceous. Peti- 

 olule not preserved. Midrib stout throughout, 

 curved, not especially prominent, secondaries 

 thin, ascending, scarcely differentiated from 

 the tertiaries, dictyodrome. 



This small form is distinct from those forms 

 of similar outline referred to Mimosites, Ca'sal- 

 pinia, and Ca^salpinitcs. It suggests Dalbcr- 

 gia, but because of its uncertain generic I'cla- 

 tionship it is referred to the form genus Gledit- 



'Saporta, (5. de, iltudes de la v^g^tatlon du sud-est de la France k 

 lVpo<iue tertiaire, vol. 2, p. 107, pi. 0, fig. 4, ISiiii. 



2 lierry, E. W., Torrey Dot. Club Bull., vol. .37, p. 197, I'.UO. 



■'F.tiingshausen, C. von, Die tertiiire Flora von Haring in 'ririil, p. ill), 

 pi. :!0, figs. l-S, ISoo. 



' Idem, p. SO, pi. 20, figs. 48-53. 



siophylluiu, witli the other forms of which its 

 venation is practi(;ally identical. It is rare 

 and niay represent an abnormal leaf of Gledit- 

 siopln/llurii eocenicum Berry. 



Occnmnce. — Lagrange formation (in beds 

 of Wilco.x age), Puryear, Henry Countv, Tcnn. 

 (collected by E. W. Berry). 



CoUrction. — U. S. National Musmim. 



GlEDIT.SIOPIIYLLIII CON.STKICTl'M BciTy, 11. sp. 



Plate LI, fii,'iire 4. 



D< scriptian. —Leaflets oljlong-lanceolate in 

 general outline, the tip bluntly pointed and 

 the base cuneate, constricted to tlie midrib in 

 the apical region to form an oblong basal por- 

 tion 2.5 centimeters long and S millimeters in 

 maximum width in the middle. Both apical 

 and basal jjortions are slightly inequilateral. 

 Margins entire, rc'gularly curved. Texture 

 subcoriaceous. Petiolule not preserved. Mid- 

 rib curved, stout. Secondaries numerous, thin, 

 ascending, curved, dictyodrome, scarcely dif- 

 ferentiated from tlie tertiary areolation. 



The general character of these leaflets allies 

 them witli Gleditsiopliylluni eocenicum, and 

 their rarity at a locality where that species is 

 very abundant lends some ground to the theory 

 that they represent abnormal leaflets of eoceni- 

 cum. As this theory is incapable of vcrifica- 

 lion, they arc given a specific name in allusion 

 to the constriction that divides the lamina 

 into a small distal and a larger proximal seg- 

 ment, a character which serves at once to 

 distinguish the present from all the other 

 forms of leguminous leaflets found in the 

 Wilcox. 



Occurnnce. — Lagrange formation (in beds of 

 Wilcox age), Purycar, Henry County, Tcnn. 

 (collected^ by E. W. Berry). 



Collection. — U. S. National Museum. 



Gleditskji'hyllum ellipticum Berry, n. sp. 



Plate LI, figures 2 and 3. 



Descnption. — Leaflets small, somewhat irreg- 

 ularly elliptical in general outline, widest at the 

 middle, and al)out equally rounded at the 

 apex and base. Length about 6.5 millimeters. 

 Maximum \\idth about 5 millimeters. Margins 

 entire, regularly rounded. Texture relatively 

 subcoriaceous for so small a form. Petiolule long 

 and stout, curved, about -1 millimeters in length. 

 Midrib stout, straight, and prominent. Second- 



