FILICALES. 69 



This species was described originally by Heer from the Kome 

 beds of Greenland and was subsequently identified by the same 

 author from the much later Atane beds ; Dawson reports it from 

 a number of localities in the Kootanie of British Columbia, and 

 Fontaine and Ward describe it from the Lower Cretaceous of 

 the Black Hills. It is also reported by both Lesquereux and 

 Ward from the Dakota Group and by Kurtz from Argentina. 

 It seems very doubtful if these can all be the same plant, and the 

 gelogical range alone suggests that the earlier and the later forms 

 may be distinct. The Lower Cretaceous forms certainly suggest 

 a relationship with those wide-spread types of sterile fronds 

 variously identified as Thryrsopteris or Onychiopsis, while those 

 from the Upper Cretaceous suggest Anemia rather than Asplen- 

 ium. However, in the absence of representative material from 

 the different horizons, it seems unv/ise to attempt any segrega- 

 tion at the present time. 



The specimens from the Raritan are abundant at the Wood- 

 bridge horizon and many excellent figures are given by New- 

 berry in his Flora of the Amboy Clays. 



Occurrence. — ^Woodbridge, Milltown. 



Collections. — N. Y. Botanical Garden. 



ASPLENIUM FOERSTERI Deb. & Ettings. 

 Plate V, Figs, i, 2. 



Asplenium Foersteri Deb. & Ettings, Urwelt. Acrobry. v. 



Aachen, 13, pi. '2, f. 4-7, 11, 1859. 

 Schimp., Pal. Veget., I: 658, 1869. 

 Heer, Fl. Foss. Arct., vol. 3, ab. 2: 93, pi. 26, f. i, 1874; 



Ibid., vol. 7: 174, 266, 1883. 

 Velenovsky, Fame bohm Kreidef, 15, pi. i, f. 14, 1888; 



Kvetena ceseho cenomanu, 48, 52, 60, 1889. 

 Newb., Fl. Amboy Clays, 41, pi. 4, f. i-iij 1896. 

 Zeiller, Ann. Mines, March, 1905, p. 7, pi. 7, /. j. 



Description. — "A. fronde pinnata (v. pluries pinnata?), pin- 

 nis regulariter alternis, confertis, subdecurrentibus, subangulo 



