358 GEOLOGICAL SUEVEY OE THE TERRITORIES. 



former species and also witli that of the other leaves referred to this 

 division, its identical type will be easily recognized and its reference to 

 this genus found appropriate. 



Under the name of Baphnogene Kani% Professor Heer has published in 

 the Arctic Flora, 1, p. 112, PI. XIY, from the Miocene of Greenland, leaves 

 which by form and nervation are closely related to this Cretaceous 

 species. In the flora of Gelinden by Saporta and Marion, fragments of 

 leaves of the same character are referred to the Menispermacew and 

 described under the generic name of Cocculus. The Cretaceous form 

 here described is intermediate between the Tertiary species and those 

 described here from the Dakota group. 



Habitat. — Near Clay Center, Kans., E. C. Towner. 



Mentspermites cyclophyllus, sp. nov. PI. VI, fig. 4. 



Leaf suhcoriaceoiis, entire, nearly round, peltate from near the middle, 

 deeply concave, palmately five nerved ; inner lateral veins curving inside 

 toward the point; the outer ones open nearly at right angle to the middle 

 nerve, all dividing by open straight branches; basilar veinlets three, passing 

 down and curving along the borders. 



The first of these leaves figured here is not quite as well preserved as 

 a larger specimen obtained lately. The essential characters are, how- 

 ever, distinctly marked. Excepting the modification in relation to the 

 form of these leaves, and the point ot attachment of the petiole, the 

 nervation is of the same type iis in the former species As observed 

 upon the larger specimens, three or four veinlets pass downward from 

 the lower part of the point of attachment of the petiole, curving on 

 each side and following the borders in festoons, like marginal veinlets. 

 The tertiary nervation, which is distinct and as marked upon the upper 

 jjart of the figure, is exactly of the same type as in the former si^ecies, 

 the veinlets nearly at right angle or slightly oblique to the secondary 

 veins, forming a double series of outside curves like superposed arches, 

 the last row following the borders in .festoons. The leaf figured as 

 marked above is concave to the round point of attacbment of the peti- 

 ole, which passes down into the stone, leaving an opening like the pipe 

 of a funnel. In the larger leaf, which is ten centimeters broad and 

 eight long, the depression is not as marked and the surface is nearly 

 flat. On this specimen the primary veins and their branches pass up to 

 near the borders before dividing, and thus have a nervation remarkably 

 similar to that of Menispermites Salinensis, as represented in Cret. Flora, 

 PI. XX, fig. 1. 



Habitat. — Kansas, near Fort Harker, the first leaf, Ghs. Sternberg. 

 Near Clay Center, the largest specimen, H. G. Towner. 



MALVACE^. 



Sterculia lineariloba, sp. nova. 



Leaf truncate to a short thicTc petiole, large, divided to near the base in 

 Jive linear-entire, narrow, obtusely -jyointed lobes about equally diverging^ 

 from acute sinuses. 



I know this fine leaf only from a sketch communicated by the owner 

 of the specimen. It is seventeen centimeters broad between the points 

 of the lower lobes, which are in right angle to the middle one, eleven 

 centimeters long from the top of the petiole to the point of the middle 

 lobe, which is eleven centimeters long from the sinuses; five-palmately 

 nerved from the base ; lobes nearly linear, narrowed into a short point, 



