16G THE FLORA OF THE DAKOTA GROUP. 



or ovate leaves of tliiii texture. It has also a distant atHnitv to P. ini-iiibrd- 

 vaccus Les(j.,' from which it diifers by its texture and nervation. 



Habitat: Ten miles northeast of D^lphos, Kansas. No. 4143 of the 

 collection of Mr. U. U. Lacoe. 



Paliurus ovalis Dawson. 

 PI. XXXV, Fig. 7. 



Mesozoic FI. Rocky Mouiitaiii Region, Trans. Roy. Soc. Canada, sec. iv, 1885, p. 14, 



PI. IV, Figs. 4, 8. 



Leaf not thick, flat, exactly elliptical, blunt at the base and the apex, 

 triple nerved; median nerve thick, percurrent; lateral primaries short, close 

 to the boi'ders, slightly curved, reaching- to half the leaf, effaced there, 

 simple or scarcely branching. 



The leaf, which is 4.,5"'° long and 2"'" broad, apparently does not differ 

 from that from Canada (Fig. 4, loc. cit.). Biit the author says of the leaves 

 that they are coriaceous, while the one figured here appears rather thin. 



Habitat: Ten miles northeast of Delphos, Kansas. No. 4142 of the 

 collection of Mr. ii. D. Lacoe. 



PALIURt'S ANCEPS, Sp. UOV. 



PI. XXXV, Fig. 4. 



Leaves subcoriaceous, ovate, tapering upward to a blunt apex, nar- 

 rowed in rounding to the base, triple or obscurely fi\'e-nerved; primary 

 lateral nerves oblique, straight, and reaching the borders al)ove the middle; 

 secondaries two pairs, op])osite, camptodi'ome. 



The leaf is comparable to that of the following species, from which it 

 differs by the absence of the lateral lobes and of tertiary nervilles; by the 

 few secondaries, only two pairs, and by a very thin basilar vein, which, 

 though not verv distinct, is traced upon the figure quite near and along the 

 border. It is also a little larger ; but as it has the same texture and the 

 same general apj)earance, it may be a peculiar form of the same. 



Habitat: Ten miles northeast of Delphos, Kansas. No. 4141 of the 

 collection of Mr. R. D. Lacoe. 



'Crot. Fl., p. 108, PI. XX, Fig. ti. 



