DESCRIPTION OF SPECIES. 25 



The above is Heer's description. He adds : "The species is, by the 

 finely cut leaves, closely allied to Asplpnium (AdiantumJ ni(/n<m Liini., the 

 form with smaller moi'e sharply (uit piima^, Avhich Bory has separated as A. 

 acuta))!." 



The fragment of this species here figured repi'esents merely the upper 

 part of two pinnse or fragments of a frond. The aspect of the plant is rigid ; 

 the lobes of the piimules are narrow, all entire, sometimes short, like obtuse 

 teeth, as in those figured in Heer's work.^ The nerves of the leaflets are 

 thin, parallel, forking above, and the rachis, of which a small part is figured 

 enlarged. PI. I, Fig. la, is very obscurely, irregularly, and thinly lined. 

 The identity of the fragment can not be doubted. 



Habitat : Ellsworth County, Kansas. No. 76 of the Museum of the 

 University of Kansas. Collected by A. Wellington. 



Tribe GLEICHENIE^^. 



Gleichenia Kurriana Heer. 

 Flora von Moletein, p. 6, PI. ii. Figs. 1-4; Lesquereux, Cret. FL, p. 47, PI. i. Figs. 5-5c. 



Gleichenia Nokdenskioldi Heer. 



Fl. Foss. Arct., vol. .•?, pt. 2 (Kreidefl.), p. 50, PI. ix. Figs. 6-12; Ilayden's Ann. 

 Kept., 1874, p. 334, PI. ii. Figs. 5-5a; Lesquereux, Cret. aud Tert. Fl., p. 26, 



Tribe LYGODIACEyE. 



Lygodium trichomanoides Lesq. 

 Hayden's Ann. Kept., 1874, p. 333; Cret. Fl., p. 45, PI. i, Fig. 2; Cret. and Tert. Fl., 



p. 27. 



'Loc. cit., vol. 3, pt. 2, PI. I, Figs. I, 2, 3. 



