166 THE FLORA OP THE DAKOTA GHOtJP. 



Anacardites antiqutjs, sp. nov. 

 PI. LVII, Fig. 1. 



Leaf large, coriaceous, oblong, pointed, rounded and abruptly nar- 

 rowed at base to the midrib, petiolate; midrib solid; secondaries thick, close, 

 parallel, the lowest at right angles, the upper gradually more oblique, craspe- 

 dodrome. 



A mere fragment, 1)ut very distinct and well preserved on account of 

 the hard, coriaceous substance of the leaf It is 9*"" long, f)"" broad, and 

 has eleven pairs of alternate secondaries about l.S"" distant, some of tliem 

 being variable in distance and more or less oblique to the midrib, accoi-ding 

 to their position, almost nil forking once near the borders. The stout mid- 

 rib is straight and descends as a solid jjetiole, broken 2*"" below the base of 

 the leaf 



A more distinct point of affinity with this leaf is found in species of 

 Anaphrenium, figured in Ettiugshau.sen's Blattskelete der Dikotyledoneu, 

 one of which, A. longifolium Bernh.,^ though a smaller leaf, appears to repre- 

 sent the essential character of the fragment of the Dakota Group, the leaf 

 being small, linear oblong, obtuse at base and apex, and has strong second- 

 aries at right angles and at a short distance, forking once near the borders 

 and acrodi'ome. 



Habitat: Near Fort Harker, Kansas. No. 2704 of the U. S. National 

 Museum. 



Order ACERACE^. 



Negundoides aoutifolius Lesq. 



Cret. Fl., p. 97, PI. xxi, Fig. 5. 



AcEEiTES multiformis, sp. nov. 

 PI. XXXIV, Figs. 1-9. 



Leaves subcoriaceous, ])etioled, more or less distinctlv tripalmately 

 lobed, cuneate, rounded or cordiform at base; lateral loV)es either hmg, 

 entire, obtuse, lobate-dentate at apex, or short and obtuse, open or oblique; 

 median nerve a little thicker than the lateral ones, these much branching 

 outside and passing up to the points of the lobes; secondaries emerging far 

 above the primaries, more or less distant, parallel, curved and camptodrome 

 like the branches of the primaries; nervilles distinct, at right angles to the 

 nerves, broken or interrupted at the middle. 



' Loc. cit., p. 179, PI. Lxxvii, Fig. 10. 



