30 DESCRIPTIONS OF FOSSIL PLANTS. 



tbe two fragments figured, the nerves are not few nor distant, but close, 

 parallel, numerous, simple, aerodrome, the upper ones nearly parallel 

 to tbe medial nerve, wliieb is comparatively narrow. 



Tbe leaf which I refer to tbe species, a fragment 14 CIU long - , tbe base 

 and tbe apex destroyed, has eight pairs of secondaries subopposite, tbe 

 lowest less tbau l ora distant, tbe upper ones 2£ cjn at an angle of diver- 

 gence of 40 to 45 degrees, same as marked in lleer's figures. Tins one 

 is marked by transverse, simple, strong nervilles, wbicb are not seen in 

 tbe American specimens wbose surface is quite smooth. This species 

 is of the same type as Corniis Kellof/f/ii (Lesqx., Fl. of the Aurif. Gravel, 

 p. 23, PI. VI, fig 3,) wbicb merely differs by tbe leaf broader (nearly 

 round) the secondaries more distant, only four pairs, opposite, also simple, 

 aerodrome. Tbe specimen figured by Heer is from Atanekerdluck. 



One specimen ; Museum number, 2454. 



Leguminosites, spec. 

 One specimen ; Museum number, 2637. 



Oreodaphne lithaeformis, n. sp. Plate xiv, fig 4. 



Leaf coriaceous, oblong-lanceolate, gradually narrowing and prolonged 

 upward ; borders entire ; medial nerve rigid ; secondaries thin, tbe lowest 

 pair subopposite, tbe others few, alternate, distant, all at an acute angle 

 of divergence, slightly curving in passing high up toward tbe borders, 

 camptodrome, areolation in minute round areoles. 



Tbe leaf, only partly preserved, is 12i cin broad, tbe upper part being 

 destroyed, 5 ( ' ,n broad above tbe base, narrowed in gradually rounding to 

 a short petiole; secondaries, five pairs, the lowest and tbe upper only 

 opposite, unequidistant, 2 to 2£ cm distant, but parallel, at an angle of 

 divergence of 25 to 30 degrees. They run very high in gradually near- 

 ing tbe borders and disappear before reaching them. 



The aspect of this leaf is much like that of species of Persea, espe- 

 cially P. caroliniana, var. assimilis, Sap. & Mar., in Fl. de Meximieux. 

 But its characters, taken altogether, relate it to Oreodaphne, especially 

 tbe areolation and tbe presence of a kind of tumescence in tbe axils of 

 some of tbe secondaries. Its nervation is that of a Litscea. Its nearest 

 affinity is Oreodaphne Jleerii Gaud., as figured in Sism. Mater., PI. xxn, 

 fig. 1, a leaf of wbicb all the secondaries, even the lowest, are alternate 

 at a very acute angle of divergence and running high up to tbe borders. 

 The form of tbe leaf is different, as it is rather linear from above tbe 

 base to tbe point where it is broken. By this form and the distant 

 secondaries irregularly placed, it is most like Litscea expansa Sap. & 

 Mar. (Fl. de Gelinden, p. 68, PI. xr, figs. 1, 2). 



One specimen; Museum number, 2525. 



Oreodaphne Heerii Gaud. 



This is perhaps the same as the preceding species, showing only a 

 fragment, tbe middle of a leaf with tbe pairs of opposite secondaries 



