88 



the leaf; this is nearly as wide as it is long, 5 centimeters broad, nearly 

 round ; obtusely-dentate, or equally crenate all around ; the nervation is rather 

 5-nerved than triple-nerved, two somewhat smaller nerves emerging from 

 the comer of the point of attachment of the petiole, and diverging at right 

 angle to the middle nerve. One only of these lateral nerves is marked in 

 Heer's Fig. 1, probably on account of the laceration of the leaf on one side. 

 Though I have closely examined the locality where Messrs. Marcou and 

 Capellini have found their specimens, I have been unable to discover any 

 trace of this species, as also of the fragment of leaf described by Heer (Fig. 

 3 of the same plate) under the name of Cissites insignis. Both are from 

 Tekamah, Nebraska. 



GAMOPETALEJE. 



Bicornes. 

 Andromeda parlatorii, Heer, PL xxiii, Figs. 6-7 ; PI. xxviii, Fig. 15. 



Leaf lanceolate, narrowed to the base and declining along the petiole by a narrow border, ontire ; 

 medial nerve thick ; secondary veins at an acute angle of divergence, parallel, camptodrome. 



Andromeda parlatorii, Heer, Phill., p. 18, PI. i, Fig. 5 ; Lesqx., Transactions 

 of the American Philosophical Society, vol. xiii, p. 432, PI. xxiii, Fig. 11. 



Prunus(}) parlatori, Lesqx., American Journal of Science and Arts, loc. cit., 



p. 102. 



The specimen referred to this species in the Transactions is somewhat 

 more complete than the one figured by Heer ; it has the base of the leaf, 

 apparently an enlarged petiole, to which the leaf is decurring in a narrow 

 border. This leaf appears thickish or subcoriaceous ; the upper end of the 

 secondary veins are not distinct, though in the lower part they are thicker 

 than figured by Heer ; its areolation is undistinguishable. 



I refer to this species, from the revision of the specimens, the two 

 leaves, (PI. xxiii, Figs. 6-7,) which I have described in the Journal, as marked 

 above, under the name of Primus (Androineda^) parlatori. The reference 

 of these leaves, one of which is whole, oblong, gradually tapering upward to 

 an obtuse point, was doubtfully indicated by the presence, in the shale, of 

 two nutlets, resembling the fruit of Prunus. The nervation of these leaves 

 as marked (Fig. 6) is more positively that of some species of Andromeda. 

 I have, however, preserved the name of Prunus for the description of the 

 fruits. 



Habitat. — Fort Harker, Leconte ; Tekamah, Marcou. 



