64 THE RARITAN FLORA. 



PHYLUM PTERIDOPHYTA. 



Order FILICALES. 



Family GLEICHENL\CE^. 



Genus GLEICHENIA Smith 



(Mem. Ac. Turin, vol. v, 1791, p. 418.) 



Gleichenia Zippei (Corda) Heer. 



Gleichenia Zippei Heer, Fl. Foss. Arct., vol. 1; 79, pi. 4^, f. ,/., 



1868; Ibid., vol. 3, ab. 2: 44, 90, 97, pi. 4; 5; 6, f. 



1-3; pl- 7> f- 2; pi. 25, f. 1-3; pi. 26, f. 10-13, 1874; 



Ibid., vol. 4: 49, pi 32, f. 6, y, 1877; Ibid., vol. 6, ab. 



2: 36, pi. 3, f. 2, 1882; Ibid., vol. 7: 7, 1883. 

 Velen, Fame bohm, Kreidef. 6, pi. 3, f. j-/, 1888. 

 Newb., Fl. Amboy Clays, 37, pi. 3, f. 5, 1896 ( ?). 

 Ward, 19 Ann. Rep. U. S. Geol. Surv., pt. 2: 664, pi. 162, 



f.g, 1899 (?). 

 Berry, Bull. Torrey Club, vol. 31 : 67, pi. 4, f. 6, 1904; Ibid., 



vol. 33 : 164, 1906. 

 Pecopteris Zippei Corda in Reuss, Versteinerungen, 95, pi. 4p, 



f. I, 1846. 

 Unger, Kreidepflanzen aus Oestreich, Sitztingsb. Acad in 



Wein, 1867: 8, pL 2, f. i. 



Description. — "Gl. foliis bipinnatis, pinnis valde approximatis, 

 elongatis, linearibiis, parallelis, pinnatisectis, pinnulis obliquis, 

 lanceolatis, acutiusculis, integerrimns, basi vix unitis ; nervis pin- 

 natis, nerv. secund. utrinque 3—5, inferioribus fnrcatis." Heer 

 1868. 



Professor Newberry's determination of this species in the 

 Raritan material is based upon very fragmentary specimen"^, 

 although some of them have traces of the sori preserved. One 

 specimen is figured in his flora of the Ambov Clays. These are 

 sharply contrasted by the beautiful Gleichenia material obtained 

 by Professor Heer from Greenland. As far as the New Jersey 



