PLANTS FKOM ALASKA. 165 



exposed. Il has pinnules larfici' than those shown in PI. XLIII, Fitr. 4, 

 and more deei)l>' incised. It evidently eoines fi'om a jxtsition still lower 

 on the frond. 



To judge from the numbei' of specimens of lliis fern fouiul in tlie 

 small collections, it was one of the most abundant and characteristic 

 plants of the Hora of its time. That it was ])retty widely distrihvited is 

 shown by the fact that two specimens of it occui' in the few fossils collected 

 by ]\lr. Schrader, at a locality 180 miles distant fiom the places where 

 Messrs. W'oolfe and Dumars obtained their fossils. The specimens of 

 Mr. Schrader show several fragments of pinnules that are rather deeply 

 incised into lobes, and also dentate ones. PI. XLIII, Fig. 7, represents 

 the specimen in Mi'. Woolfe's collection which Professor Lesquereux 

 referred to Asplciiiuni Fa-rstcri Del). & FAX. 



Phylum SI^EI^:SIA^TC)3^HYT^V. 

 Class GYMNOSPEKMJ]. 



Order CYCADALES. 



Family CYCADACE.E. 



Genus PODOZAMITES Friedridi Braun. 



PODOZAMITES DISTANTINERVIS FoUtaille. 



1888. Podozamites latipennis Heer. Ije.sciui'roux: Proc. U. S. Nat. Mu.s., Vol. XI, 

 p. -SI, ]>1. xvi, figs. 2, 3. 



1888. Zamifes alaskana Lx.: Op. cit., p. .3'2, pL x, fig. 4. 



1889. Podozamites distaniinerris Font.: Potomac Flora (Monogr. U. S. Geol. Surv., 



Vol. XV), p. 179, pi. Lxxix, fig. 5; pi. Ixxxii, fig. 4: pi. Ixxxiii, figs. 1. 2. 6, 7; 

 pi. Ixxxiv, figs. 1, 2, 8, 10, 14, 1.5; pi. Ixxxv, figs. 12, 16. 

 1902. Podozamites distantineruis Font. Schrader: Bull. Geol. Soc. Am., Vol. XIII, 

 p. 245. 



Several detached leaflets occur in the collections, mostly in the spec- 

 imens collected by Mr. Woolfe, that seem to be a Podozamites, identical 

 with the form described from the Potomac formation with the name 

 P. distantinervis. Two fragments of it occur also among the specimens 

 collected by Mr. Schrader. 



Professor Lesquereux identifies most of these specimens with P. 

 latipennis Heer, a form in which the leaflets do not terminate at their 



