DESCRIPTION OF SPECIES. 211 



LiRioPHYLLUM POPULOiDES Lesq. 



Cret. and Tert. FI., p. 76, PI. xi, Figs. 1, 2. 



Cakpites liriophylli Lesq. 



Cret. and Tert. Fl., p. 77, PI. xi, Fig. 5. 



DewaLiQUea dakotensis, sp. nov. 

 PI. LIX, Figs. 5, 6. 



Leaves large, compound, with a main petiole somewhat thick as seen 

 from tlie fragment hgured, pedate-digitate, tripartite, segments or leaflets 

 petiolate, lancettlate, entire, obtuse or apiculate, broken at apex; median 

 nerve stout; secondaries vaxiable in distance, parallel, oblicjue, and camp- 

 todi'ome. 



( )ne of the leaflets, which is half as long as the others, apjiears to be 

 a lateral one, being gradually enlarged up to near the apex, there rounding 

 to a shoi't mucro. 



These fragments are comparable tt) the leaflets of Dciralquca r/elinden- 

 rnsis Sap. & Mar.', being especially like Fig. 3 of tliis last plate, the leaves 

 from Kansas having tlie leaflets a little broader, the main pedicel .slightly 

 thicker, the pedicels of the leaflets of the same size and length, naked from 

 the base of the leaflets which are narrowed at base to the petiole and join 

 it without decurring to it. 



The leaflets are apparently long, but the upper part is destroyed. The 

 preserved fragment is 8°™ long, witli a petiole 1""" to 2""" broad. One of them 

 (PI. LIX, Fig. .5) bears on the side the remains of the conunon petiole. The 

 leaflets generally become narrowed near the apex to a short acumen, or 

 become mucronate, as in the smaller leaflet mentioned above, which is onlv 

 4"° long and 2""' broad in its upper part. 



None of the species described by Heer from the Cretaceous of Green- 

 land. D. insi(jnls Heer,^ with the dentate leaflets; 1). grd'ukmdica Heer,^ also 

 described from Patoot, with leaflets gradually narrowed and decurring to 

 the petiole, nor D. heldemiana Sap. & Mar., described from mere fragments 

 in the Patoot Flora, have even a distant relation to the species from Kansas. 



Habitat: Kansas. 



'V(5g. Marues Heers. Gelind., p. 61, PI. viii, Figs. :?, 4; PI. ix, Figs. 1-7. 



«F1. Fo.s8. Arct., vol. (5, Abth. 2, ji. 86, PI. x.w, Fig. 7; Pl. xxx'li. Figs. 14-16. 



»Loc. cit., p. 87, PI. XXIX, Figs. 18, 19; PI. xlii, Fig. 6; PI. xxiv. Fig. 11. 



