f,s DESCRIPTION OF SPECIES. 



and force them outside, forming short teeth. The difference between this 

 and the preceding form becomes, therefore, less marked and may not be 

 considered of specific value. But the same remarks can be made on the 

 numerous transitional forms of this peculiar flora, as it has been remarked 

 already. 



Hab. — Near Fort Harker. Chs. Sternberg. 



Cissites, Heerii, Lesqx. 

 Plate V, Fig. 2. 

 Hayden'a "Ann. Rep ," 1874, p. 353, pi. V, fig. 3. 



Leaf fan-shaped in outline, broadly euueate to the base from above the middle, 

 divided at the upper border iuto live nearly equal acute lobes separated by broad 

 sinuses; primary nerves trifld from above the basal border of the leaf, ascending with 

 the lower pair of secondary nerves to the points of the teeth; upper lateral veins and 

 all the subdivisions camptodrome. 



Though the base of the leaf is destroyed its outline is clearly defined 

 by the preserved part of the borders and the direction of the lateral pri- 

 mary veins. Except that the two lower secondary nerves ascend to the 

 points of two lobes, the nervation of the leaf is of the same type as that 

 of the two preceding species. Though the close relation of these leaves 

 is evident, this one cannot be compared to Araliojms. It, therefore, 

 authorizes a separation of this group, which by its characters is related to 

 the Ampelidece, especially to Cissies. 



Hab. — Near Fort Harker, Kansas. Chs. Sternberg. 



A in p e 1 o p li y 1 1 u m , Lesqx. 

 Haydeu's "Ann. Rep.," 1874, p. 354. 



Leaves ovate or obovate, obtuse, entire, narrowed to a long petiole, or sub-cordate, 

 palmately three-nerved from above the base; nerves flexuous, branching on both sides, 

 ascending to the borders. 



A ni p e 1 o p h y 1 1 u m a 1 1 e n n a t u m , Lesqx. 



Plate III, Fig. 2. 



Hayden's "Ann. Rep.," 1874, p. 354, pi. ii, fig. 3. 



Leaf sub-coriaceous, cuneiform in outline, enlarged and rounded at the top; 

 borders entire, wavy ; lateral primary nerves joining the middle at a distance from the 

 base, flexuous, branching out and inside, ascending to the borders. 



The leaf, 6i centimeters long without the petiole and about the same 

 width between the points of the primary lateral nerves, is rounded at the 



