766 SYSTEMATIC PALEONTOLOGY 



gerrimis, apice acutis, ultimis simplicibus, lanceolatis, magnis.'' Heer, 

 1882. 



The present species was described by Professor Heer from the Atane 

 beds of western Greenland. Subsequently Fontaine identified as this 

 species a very different form from the Patapsco formation of Virginia, a 

 form that the writer has referred to Cladophlebis browniana (Bunker) 

 Seward. 1 



Somewhat fragmentary remains that appear to be identical with Heer's 

 type occur in the Karitan formation. 



Occurrence. KARITAN FORMATION. Shannon Hill, Cecil County. 



Collection. Maryland Geological Survey. 



Genus ASPLENIUM Linne 

 [Sp. Pi., 1753, p. 1078] 



ASPLENIUM CECILENSIS Berry 

 Plate LI, Figs. 3, 4 



Asplenium cecilensis Berry, 1911, Bull. Torrey Bot. Club, vol. xxxviii, p. 

 p. 403, pi. xviii, figs. 4, 5. 



Description. Frond unknown. Pinnules linear-lanceolate, falcate, 

 subopposite, united to the stout rachis by their entire bases, with entire 

 margins and acute tips. The sterile pinnules are somewhat smaller than 

 the fertile, being about 12 mm. or 13 mm. in length by 3 mm. in maxi- 

 mum width, which is at their base. They show a stout midrib which gives 

 off about twenty-five branches on each side alternately above and below, 

 and is lost in the apical region by this repeated branching. These branches 

 subtend a considerable angle and are recurved. They fork once near their 

 base and run directly to the margin. The fertile pinnules are somewhat 

 larger than the sterile, being about the same length and slightly wider. 

 They show stout midribs and the poorly preserved remains of numerous 

 linear-lanceolate sori extending nearly from the midrib to the margin 

 and obscuring the lateral veins, there being apparently a sorus to each 

 forked lateral. 



1 Berry, Md. Geol. Survey, Lower Cretaceous, p. 243, 1911. 



