lesquereux.] ENUMERATION OF CRETACEOUS PLANTS. 343 



These leaves, of which we have a number of specimens, the two best 

 ones figured here, vary .in size from two to three and one-half centime- 

 ters broad in the widest part, far below the middle, and twelve to six- 

 teen centimeters long. By their shape, the long narrowly tapering and 

 slightly falcate acumen, they closely resemble Proteoides daphnogenoides, 

 Heer, as represented in Cret. Flora, PI. XV, figs. 1 and 2, differing, 

 however, by the broader middle nerve and the distinct, equidistant and 

 parallel secondary veins. These, at an acute angle of divergence of 

 about thirty degrees, are somewhat curved in passing toward the bor- 

 ders, where they become effaced ; the lower pair is at a more acute angle 

 of divergence and ascends higher in following the borders; the areola- 

 tion is obsolete, the surface appearing punctulate or closely dotted by 

 small convex areolae, like the leaves of some species Laurus or Persea. 



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



Persea Leconteana, Lesqx., Cret. Flora, p. 75, PI. XXVIII, fig. 1. 



Leaf large, oblong-ovate, lanceolate pointed ; borders undulate, nervation 

 pinnate; loicer secondary veins distant, at a more acute angle of divergence, 

 curving near the borders and ascending to the middle of the leaves ; upper 

 veins shorter, parallel. 



The character of the nervation is the same as in the former species. 

 The relation of this leaf is, however, contested, on account of its size 

 and shape, which seem more like those of a Magnolia. 



Persea Sternbergti Lesqx., Cret. Flora, p. 76, PI. VII, fig. 1. 



Leaf large, thick, coriaceous, entire, broadly oblong, oval, or obovatc, 

 obtusely pointed f ( point broken), gradually narrowed in a curve to the base ; 

 nervation pinnate, very distinct, camptodrome. 

 Daphnogene cretacea, sp. nov. 



Cinnamomum Scheuchzeri, Heer, Cret. Flora, PI. XXX, figs. 2, 3. 



Leaves coriaceous, polished on the upper surface, elliptical or ovate-lanceo- 

 late, pointed, narrowed to a short petiole ; slightly undulate on the borders, 

 and triple-nerved from a distance above the base ; middle nerve and lateral 

 reins thick, the lower primary ones ascending along the borders as high as 

 the lower secondary veins, tvhich they join by ramifications. 



To Professor Heer, the reference of these leaves to Cinnamomum 

 Schenchzeri seems very hazarded, for though the form of the leaves is 

 much the same, the middle nerve is too thick for that species, especially 

 toward the point. Count Saporta is also of the opinion that the presence 

 of G. Scheuchzeri in the Cretaceous is very improbable, as this species in 

 Europe is essentially of the Upper Miocene. I have accordingly changed 

 the name of this species, which, though positively referable to the 

 Laurinece, is as yet uncertain in its relation. The genus Laphnogene, 

 Uug., less definitely limited, is appropriate for leaves of this kind, to 

 which the following species is also referred. These two leaves are dis- 

 tantly related to Cinnamomum Mississippiense of the lignitic. 



Daphnogene heerii. 



Cinnamomum Heerii, Lesqx., Cret. Flora, p. 84, PL XXVIII, fig. 11. 

 Leaf thickish, subcoriaceous, entire, ovate, taper -pointed, rounded at the 

 base, three-nerved ; lateral veins ascending higher than the middle of the 

 leaf, branching outside. 



Oreodapiine cretacea, Lesqx., Cret. Flora, p. 84, PI. XXX, fig. 5. 



Leaf coriaceous, elliptical, gradually curving to an obtuse point, narrowed 

 in about the same degree to the base ; middle nerve thick, secondary veins 

 thick and opposite, three or four pairs, inflated at the axils. 



