164 Berry : Mesozoic flora of the coastal plain 



showing a trifle more than two centimeters of a single pinnule oc- 

 curs in the material from Kinkora, N. J. 



Gleichenia Zippei Heer, Fl. Foss. Arct. I : 79. pL 4.J. f. 4.. 



1868. 



This species, commonly accredited with the wide range from 

 the Neocomian through the Senonian, has been recorded recently 

 from several Cenomanian and Senonian localities in southeastern 

 Europe. In all probability the early and late Cretaceous forms 

 are distinct. 



In addition to Cliffwood bluff, N. J., it occurs at Deep Cut, 

 Del. 



Osmunda delawarensis sp. no v. Plate 8, figures 2-4. 



Fronds pinnate ; pinnae simple, alternate, long, linear-lanceo- 

 late, inequilateral at the base ; borders undulate, very slightly 

 crenulate; frond substance thick. Pinnae 7.5 cm. long, 5-6 mm. 

 wide near the base, tapering to a long narrow point, closely re- 

 sembling the sterile pinnae of Osmunda Presliana J. Sm. of the 

 east and south Asiatic region, except that the latter has a nar- 

 rowed base, while this species has a large base more like that in 

 Osmunda regal is L. 



Whether the larger specimen figured is a pinnule of a bipin- 

 nate form like the modern cosmopolitan u royal fern " it is im- 

 possible to judge from the material thus far collected. 



The Osmundaceae are rather common and widespread in the 

 Jurassic, represented by Toditis, etc. Various species have been 

 referred to Osmunda or Osmunditcs y including two or three forms 



from the lower Potomac described by Fontaine, and showing sup- 

 posed fructification. Penhallow has described in detail the struc- 

 ture of a stem from the lower Cretaceous of Queen Charlotte 

 Islands under the name of Osmunditcs skidegatensis, which proves 

 beyond question the occurrence of this type of plant at this gen- 

 eral horizon. 



Without the fertile parts we cannot, of course, be positive in 

 our identification of this form, which is quite abundant at the Deep 

 Cut of the C. & D. canal in western Delaware. 



Osmunda at the present time contains six or seven species of 

 swamp-loving ferns, most of them confined to the northern hemis- 

 phere, where they are wide-ranging. Three of these forms occur 

 in North America. 



