DESCRIPTION OF SPECIES. 103 



Sassafras (Aualiopsis) PLATANoinES Lesq. 



Cret. and Tert. Fl., p. 58, PI. vii, Fig. 1. 



Tribe PERSEACE^E. 



Peksea Sohimpeki, sp. nov. 

 PI. XVI, Fig. 5. 



Leaves conaceoiis, oval-olilong', iiarrort'ed and contractefl above to a 

 blunt-i)()inte(l npex, narrowed in the same degree, but in an outside curve 

 and l)roadly cuneiform to tlie base; pi'imary nerve thick; secondaries 

 inequidistant, the lowest thiu, close to the borders, t'ollowing them in anas- 

 tomosing- Avith those above ; the others thick, all at an acute angle of 30° 

 camptodrome. 



Tlie leaf, of which the petiole is destroyed, is 12™' long and G'"° broad; 

 the secondaries, of Avhich there are seven pairs, are variable in distance, 

 slightly curved in traversing the blade, following the borders at a distance, 

 anastomosing by branchlets in areoles ; the areolatiou is small punctiforni. 



The form of the leaf is comparable to that of P. speciona Heer,^ which 

 is a leaf somcAvhat larger, with the secondaries less distant and less grad- 

 ually curving along the borders. The character of nervation and areola- 

 tiou is that of P. Bratinii Heer," a type also recognized in the Lower Eocene 

 flora of Gelinden in P. pakpomoyphd Sap. & Mar., and which of course it 

 is not surprising to find already represented in the Cenomanian of this con- 

 tinent, where so many original types of more recent plants make their 

 appearance. 



Habitat: Ellsworth County, Kansas. No. 781 of the museum of the 

 University of Kansas ; E. P. West, collector. 



Peesea Havana, sp. nov. 

 PI. XVI, Fig. (). 



Leaf large, coriaceous, oval, contracted below the pointed apex, grad- 

 uallv narrowed and decumng to the petiole- secondaries opposite, equi- 

 distant, parallel, anastomosing by nervilles into large, simple areoles. 



The leaf is nearly of the same size and form as that of the preceding 

 s)iecies, from which it evidently differs by the still thicker texture, the pol- 

 islied surface, the longer, prolonged base joining the petiole by a declining 



'Ettiugshausen in Foss. FL, Biliu, pt. 2, p. 9, PI. .\.x.\ii, Fig. IC. 

 «F1. Tert. Helv., vol. 2, p. 80, PI. Lxxxix, Figs, i), lu. 



