107 



truncate; nervation very coarse and deeply marked; secondary veins more 

 or less branching, entering each, with their divisions, the point of a tooth. 



The denticulation of the borders of this leaf is of the same character as 

 that remarked in Grreviopsis haydenii, viz, shallow teeth pointed outward, 

 sejiarated by equal, obtuse sinuses ; the lateral veins nearly parallel, join the 

 medial nerve under a broad angle of divergence of 50° to 60°. Dunker in 

 the Paleont, (vol. iv, p. 181, PI. xxxiv, Fig. 1,) has described, from the 

 Quadersandstein of Blankenburg, a leaf or a fragment under the name of 

 Castanea hausmanni, which is somewhat related to our species. The dentic- 

 ulation is, however, unequal ; the tertiary veins sti-onger ; the base of the leaf 

 round. I refer this leaf with doubt to this section. 



Habitat. — Kansas, Professor Mudge. 



Eremophyllum fimbriatum, Lesqx., PI. viii, Fig. 1. 



Leaf peltate, kidney-shaped, with au entiro broadly-truncate base; borders dentate by equal hastate 

 or auricled teeth ; nervation seven-palmate. 



Ficus (?) Jimbriata, Lesqx., American Journal of Science and Arts, loc. cit., 

 p. 96. 



The leaf is peltate from the union of the borders a little lower than the 

 point of attachment to the petiole ; its form is nearly round, enlarged on the 

 sides or kidney-shaped, entire and truncate at the enlarged base, equally 

 dentate from its lower part, with equal short teeth, appendaged with 

 obtuse auricles, and separated by deep half-round sinuses; petiole thick, 

 attached above the borders, which are joined under it in a very obtuse angle ; 

 nervation seven-palmate ; veins diverging at equal distance, of the same thick- 

 ness, except the middle nerve, which is slightly stronger, forking once or 

 twice from above the middle, with the divisions turned toward, but not enter- 

 ing, the teeth ; areolation small, round, polygonal. 



The relation of this leaf is still more uncertain than that of the former 

 species. By the round form of the leaf, it is comparable to Ficus crenata 

 Ung., (Sillog., p. 14, PI. vi, Fig. 3,) a round, subpeltate leaf, with a seven- 

 palmate nervation, or to Ficus asarifolia, Ett., (Bilin. Flor., p. 80, PI. xxv, 

 Fig. 3 ;) also a subpeltate, nearly round leaf. The relation is, however, distant. 

 I have not been able to find, either in living plants or in the descriptions 

 and figures of fossil ones, anything analogous to the kind of denticulate 

 appendages which surround this Cretaceous leaf, and have therefore sepa- 



