ROSALKS. 



229 



very iniiuitcly pctiolulatc, attached ohliqiicly. 

 ovato-liuiceolulf and slightly lalcate in outhne. 

 Length about 3 to 3.5 centimeters. Maxi- 

 mum widtli al)()ut l.l centimeters, in the mid- 

 dle part of leaflet. Margins entire, full and 

 rounded, curving inward to the equally pointed 

 apex and base, or the apex very slightly more 

 slender tlian the base. Pctiolule relatively 

 stouter than in Casfda fayettenmfi Berry, promi- 

 nent on the under sid(- of the leaflet, slightly 

 curved. Secondaries thin, six or seven camp- 

 todrome i)airs, more ascending tiian in Cassia 

 f(nj(tt(nsis and leaflets also of a thicker texture 

 than m that species. 



This species is well marked, and though in 

 its general appearance it suggests a small 

 variety of Cassia fai/dtensis, the nearly sessile 

 leaflets with their more coriaceous texture and 

 difl'ereut venation servo to indicate its dis- 

 tinctness. It is very similar to the somewhat 

 smaller species Cassia marshallensis Berry, 

 which is more coriaceous and has more numer- 

 ous open secondaries and a relatively long 

 petiohde. It resembles numerous existing and 

 European Tertiary species of Cassia. It is 

 somewhat similar to a form from the Tertiary 

 of Bolivia described by Engelhardt ' as Cassia 

 memJimnacea and compared with the existing 

 Cassia lievigata Willdenow, which ranges from 

 Mexico to Brazil. 



Occurrence. — HoUy Springs sand, Early 

 Grove, Marshall County, Miss, (collected by 

 E. W. Berry). Lagrange formation (in beds 

 of Wilcox age), 1 Smiles west of Grand Junction, 

 in Fayette County, Tenn. (collected by E. W. 

 Berry) . 



Collections. — \J. S. National Museum. 



Cassia eolignitica Berry, n. sp. 



Plate XLVIir, figures 2-4. 



Description. — Leaflets elliptical in general 

 outline with a roimdetl apex and a sliglitly 

 narrowed base. Lengtli ranges from .5 to 7 

 centimeters. Maximum width, about mid- 

 way between the apex and tlie base, ranging 

 from 2.5 to 3 centimeters. Margins fuU and 

 entire, slightly irregular. Pctiolule short and 

 stout, widened and rugose, ranging froni 1.5 

 to 3 millimeters in length according to t lie size 

 of the leaflet. Midrib slender. Secondaries 

 very thin but distinct, five or six opposite to 



1 EnKelhardt. nermann, Xaturwiss. Gesell. Isis in Dresden Abh., 

 1894, p. 9, pi. 1, figs. .Jl, 32. 



alternate pairs, unequally spaced, diverging 

 from the midrib at angles of about 45"^, rather 

 straight proximad but curved and campto- 

 dromc toward the margins. Tertiaries very 

 fine but distinct in the smaller leaves, forming 

 camptodrome arches in the marginal region 

 and large pentagonal meshes internally, mostly 

 obsolete in the larger leaflets. -Leaf substance 

 thin. 



The general form and details of venation ally 

 tliis species with the genus Cassia. Among 

 the Wilcox species it is closest to Cassia 

 v>Ucoxiami Berry but is relatively broader and 

 petiolulate. It may be distinguished from tlie 

 Wilcox species of Sophora, which resemble 

 it in outline, by its texture and venation. 

 A relatively shorter and broader specimen, 

 collected by McGee at Early Grove, is in the 

 Ignited States National Museum collections. 

 The largest forms come from tlie locality 

 between Grand Junction and La Grange. 

 The species is rare at the outcrops where it lias 

 been found but evidently had a considerable 

 range and was probably more common than the 

 collected material indicates. 



Occurrence. — Holly .Springs sand. Early Grove, 

 Marshall County, Miss, (collected by W J 

 McGce). Lagrange formation (in beds of 

 Wilcox age), Puryear, Henry County, Tenn. 

 (collected by E. W. Berry), and H miles west 

 of Grand Junction in Fayette County, Tenn. 

 (collected by E. W. Berry). Wilcox group, \\ 

 miles northeast of Mansfield, De Soto Parish, 

 La. (collected by G. C. Matson and O. B. 

 Hopkins). 



Collections. — U. S. National Museum. 



Cassia bentonensis Berry, n. sp. 

 Plate L, figure 1. 



Description. — Pods of mediinn size, elon- 

 gated, linear, flat, unsegmented, with fine 

 transverse forked and more or less anasto- 

 mosing veinlets. Length about 7 centimeters 

 and wndth about 1 centimeter. Seeds numer- 

 ous, compressed. 



This species is based on incomplete speci- 

 mens, the largest being that figured. The 

 only foliage of Cassia associated with it is 

 represented by the leaflets described as Cassia 

 fayettensis Berry, and the specimens may well 

 bo the pods of this or of one of the other 

 numerous Wilcox sp(>cies of Ca'salpiniacea'. 

 They resemble numerous existing Cassia fruits 



