ROSALES. 



249 



Canavalia eoccnica, is Bomhax mucronatum 

 Scliumann, an inluibitant of Brazil. The 

 fossil species may he (listinsiuished from this 

 recent form 1)\" its f('\V(>r and nincli more aseend- 

 \r\g secondaries. 



Cannvalia (ocrmca is so |)osilively identilied 

 that it affords a very satisfactory addition to 

 th(^ Wilcox flora, enal)ling us to form so definite 

 a picture of tlie |)lant f^roupinjj; aloufi; tiie sandy 

 parts of the shore of the Wilcox Mississijipi Gulf. 



Ocmrrence. — (Irenada formation, Grenada. 

 Grenada County, Miss, (collected hy E. N. 

 Lowe and E. W. Berry). Holly vS|)rings sand, 

 Holly Springs, Marsiiall County, Miss, (col- 

 lected by E. W. Berry). Lagrange formation 

 (in beds of Wilcox age), Purycar, Henry 

 County, Temi. (collected hy E. W. Berry). 



Collections. — U. S. National Museum. 



Canavalia acuminata BeiTy, n. sp. 



Pl;i(e ex, figures 4 and .5. 



Description. — Leaves trilobate (?). Leaf- 

 lets of medium size, ovate-lanceolate in out- 

 line, nearly crjuilateral, the base broadly 

 rounded and ta]iering from about the middle to 

 a short, sharp point. Length 5 to 6 centi- 

 meters. Maximum width, below the middle, 

 2 to 2.5 centimeters. Margins evenly rounded 

 and entire. Texture subcoriaceous. Petio- 

 lules short, flat, and very much expanded, 

 transversely striated. Midrib stout and prom- 

 inent on the lower surface of the leaflets. 

 Secondaries thin; six to eight pairs diverge 

 from the midrib at angles that average about 

 50°, curving upward in a subj)arallel manner and 

 camptodronic in the marginal region. Tlic ter- 

 tiary venation is thin but well marked, the angu- 

 lar areolation being characteristic of the genus. 



No complete leaves of this species have been 

 found, so that its identification is not as con- 

 clusive as tliat of Canavalia eocenica Berry. It 

 is sUghtly smaller than that species and is 

 readily distinguished by its ovate-lanceolate 

 leaflets as against the broadly elliptical or 

 retuse leaflets of Canavalia eocenica, and it is also 

 less common tlian CanavaUa eocenica. 



It somewhat resembles thc^ numerous leaf- 

 lets from the Tertiary of Colombia described 

 by Engdhardt ' as Inga reissi. 



Occurrence. — IloUy Springs sand, Early 

 Grove, Marshall County, Miss. (coUected by 



E. W^ Berry). Lagrange formation (in Ix-ds 

 of Wilcox age), Puryear, Henry County, Tenn. 

 (collected l)y E. W.Berry). 



Ciilliction. — L'. S. National Museum. 



(knus LEGUMINOSITES Bowerbank. 



Legi'minosites ruEFOLi.vTUS Berry, n. sp. 

 PlaleXLVIII, figure 1. 



Description. — A small xmexpanded leaf of an 

 Acacia-like f()rm occui's in thl^ collection from 

 I he chiys of Wilcox age at Puryear. It r(>p- 

 resenls an inconiplele leaf of conduplicate verna- 

 tion, ])reserved fur a length of 2 cc^ntiuK'ters. 

 The stipe is stout and tiie immature leaflets are 

 numerous, numbering about a dozen pairs in 

 the portion preserved. They are smaU, linear- 

 lani'colate, sessile, and aliout 5 or 6 millimeters 

 in length and 1 millinietor in maximum width, 

 inserted obliquely, and apparently somewhat 

 falcate. Tliey are much smaller than most of 

 the described species of Mimosites and Cirsal- 

 pinites of the Wilcox flora, but had obviously 

 not attained tlieir mature size. 



Tlie specimen is not unitjue, since Heer 

 described an alnit)st exactly similar speci- 

 men from tlie vSwiss Miocene as Cassia con- 

 cinna - and Lesquereux has figured a specimen 

 from tlie lower Eocene of Evanston, Wyo., that 

 is almost exactly similar to the Swiss form as 

 well as to the present Wilcox iovm. This he 

 identifies as Cassia concinna. Ileer,^ an ol)vi- 

 ously rash proceeding when the nature of tlie 

 remains and tlie wide interval, both geographic 

 and geologic, between tlie two occurrences is 

 taken into consideration. Lesquereux's form 

 may be the same as that from Tennessee, since 

 they are identical in appearance and come from 

 horizons that are not remotely different in age, 

 but such evidence is hardly suflicient to estab- 

 lish actual identity, and I prefer to keep them 

 separate. 



Occurrence. — Lagrange formation (in beds of 

 Wilco.x age), Puryear, Henry County, Tenn. 

 (coUected by E. W. Berry). 



Collection. — U. S. National Museum. 



Leguminosites arachioides (Lesquereux) 

 Lescjuereux. 



Plate XLVIII, figure 9. 



Carpolithes arachioides. Le.sciuereux, U. S. Geol. and 

 Geog. Surrey Terr. Ann. Kept, for 1872, p. 403, 1873. 



' Engelhard t, Hermann, Senckenbergische naturl. Geseli. Abh., vol. 

 19, p. 36, pi. 8, figs. 1, 2; pi. 9, flg. 8, 1895. 



2 lleer, Oswald, Flora tertiaria Helveli:c, vol. 3, pi. 1.3S, fig. 41, 1S59. 

 2Lesquereu.\, Leo, The Tertiary flora, p. 299, pi. 59, figs. 8, 8a, 1878. 



