JUGLAXDALES. 



185 



Engelhardtla. puryearensis Lorry, sp. nov. 

 I'UiIi' X\'n, IK'urcs (i and 7. 



Description. — Inv()lucr(> small tn larfjo, trilo- 

 bate. Alje widely s|)rea(I, diverging from eaeli 

 other iit angles of ahont 70°. Sinuses corre- 

 spondingly open and nearly straight sided. 

 Tliewliole organ i-anges from 4 to 7 centimeters 

 in length and from 4.4 to 6.2.5 cenlimotcrs in 

 maximum widtli from tip to tip of tlie lateral 

 wings. Xucellus of medium size, ovate to 

 spherical. Median wing oblong, very nnieii 

 larger than tlie lateral wings, ranging from .'i.T) 

 to 6 centimeters in lengtli and from 1 centimeter 

 to 1.7 centimeters in maximum widtli at a point 

 about halfway to the tip, narrowed to the 

 bluntly rounded tip. Lateral wings nearly 

 equilateral, straight sided, with broadly and 

 abruptly round(>d tips, ranging from 2 to 4 

 centimeters in length and from 6. .5 to 1 1 niiUi- 

 meters in nuixinuini \vidth. Margms strictly 

 entire and subparallel. Each wing has a rela- 

 tivel}" stout midrib centrally placed and straight 

 in its couree. On each side of each mich-ib at a 

 distance approximately halfway to the margin a 

 relatively stout vein runs from the extreme base 

 parallel with the midrib nearly to the tip of the 

 respective wings; these su1)ordinate primaries 

 are somewhat less stout than tlie miih'ihs but 

 stouter than the rest of the venation. In the 

 larger specimens subordinate primaries run 

 from the base part way to the tips. Thin 

 obliquely curved nerviUes connect the lateral 

 primaries of each wing with the midrib. From 

 the outer side of the outer lateral primaries 

 thin branches diverge to form a camptodrome 

 marginal areolation; in the median wing tli(>y 

 diverge at acute angles, but in the lateral wings 

 their angle of divergence is very open. 



Species founded on fruits of Engelhardfia 

 are perhaps not entirely free from suspicion, 

 since in a single spike of a modern Engelhard tia 

 there is more or less variation in the relative 

 sizes of the wings. Nevertheless the present 

 form is strikingly different from the contem- 

 poraneous EngeViardtia mississippiensi'i Berry 

 and is represented by several spec-imens, l)oth 

 large and small, so that no course is possible but 

 to describe it as a distinct species. Some of 

 these differences are woi'thy of enumeration: 

 III EngeJhardtia puryearensis the median wing 

 is much larger instead of being about the same 

 size as the lateral wings; tlie margins are suh- 



)iarallel and not conspicuously narrowed toward 

 (lie bas(> or apex; the lateral wings are equi- 

 lateral and generally diverge at more open 

 angles; tll(^ ti[)s are more broadly and bluntly 

 rounded; the nuceUus is relatively somewliat 

 smaller; tlie sinuses are more deeply cleft and 

 more angular. The secondaries are not numer- 

 ous or regular and subparallel, but conspicuous 

 lateral pseudoprimaries run from the extreme 

 base. A third American species of fruit de- 

 scribed by me as Engclhardtla du'ihorncnsis 

 occurs in the lower part of the overljnng 

 ("laiborne group in Arkansas. Though not as 

 large as some of the forms of this species or as 

 /:. mississippiensis it is much more robust and 

 has subequal jiointed wings, less deeply cleft 

 sinuses, and a much larger nuceUus. 



Among the Engelhanltia fruits described 

 from the European Tertiary, the present species 

 greatly resembles some of the forms included 

 by Saporta ' in Engelhardtia brongniarti which 

 come from theOligocene of southeastern France. 

 Our species may be compared with that species 

 as sho^vn in Saporta's figure 5c of Plate XII. 

 Other forms associated with this specimen and 

 referred to this species are not at all closely com- 

 parable and I have no doubt that the Wilcox 

 form is specifically distinct. From their rare 

 occurrence in the Wilcox flora, which is essen- 

 tially a coastal one, it may be inferred that in 

 the Eocene as in the existins flora the Ensel- 

 hardtias were upland trees, so that only occa- 

 sionally did their bouyant winged fruits float 

 do^vn the rivers to the coastal area of sedi- 

 mentation. 



Occurrence. — Lagrange formation (in beds of 

 Wilcox age), Puryear, Henrv County, Tenn. 

 (collectedbyE.W. Berry). 



Collection. — U. S. National Museum. 



EXGELIIAKDTIA ETTIXGSIIATTSENI Berry, U. Sp. 



Plalc XIX, figuras 1, 3, and .5. 



Sapindus duhius. Ijeaquoreux ([)art), U. S. Nat. Mus. 

 I'roc, vol. 11, p. 1.3, 1888. 



Description.— IjeviVQn piuuato. Leaflets ses- 

 sile, ovate-lanceolate, more or less inequilateral 

 ill outline, sliglitly falcate, with a narrowed, 

 bluntly ])ointi<Hl or narrowly rounded apex, and 

 a pointed iiio(|uilatoral base. Length 5.5 to 9 

 coutimeters. Maximum width 2 to .'5 centi- 

 m(it(U's, in the middle part of the leailet. Mar- 



1 Saporta, G. de, op. eit., vol. 2, p. 343, pi. 12, fig. 5. 



