240 . PODOZA.MITES. 



In all probability the Leckenby specimen represents a new 

 species ; I have chosen the specific name Natliorsti after my friend 

 Professor Nathorst, of Stockholm, whose work has materially 

 aided me in the identification of the Yorkshire plants. 



Dr. Richards, who printed a list of British Cycadean leaves in 

 1884, 1 refers this specimen to an Indian species, Pterophyllum 

 distans, Oldham & Morris, and adopts the generic name Dioonites. 

 The frond so named by Morris from the Rajmahal Hills is repre- 

 sented by imperfect fragments, which bear a close resemblance to 

 the Yorkshire specimen, but the evidence is not, I believe, sufficient 

 to justify us in making use of his specific designation. 



Among other Cycadean fronds from Indian localities which are- 

 very similar to Dioonites Natliorsti, may be mentioned Zamites 

 proximus, Feistmantel, 2 Cycadites Blanfordianus, Oldham & Morris, 3 

 Pterophyllum Footeanum, Feistmantel. 4 Another species similar 

 to Dioonites Nathorsti is that described by Jaeger as Osmundites 

 pectinatus 5 ( = Pterophyllum Jaeger i, Brongn.). The Rhae tic 

 species, Pterophyllum Braunianum, Gopp., 6 and P. carnallianum, 

 Gopp., 7 may also be compared with the English type. 



The frond figured by Hosius & Yon Marck 8 as Dioonites- 

 abietinus, Miq., bears a resemblance to D. Nathorsti. 



A Genus of Doubtful Affinity. 



Genus PODOZ AMITE S, Braun. 



[Minister : Beitriige Petrefact. Heft vi. p. 36, 1843.] 



Braun proposed this generic name, as a substitute for Zamia 

 of Brongniart and Zamites of Presl, for such species as Zamites 



1 Richards (84), p. 3. 



2 Feistmantel (77 1 ), p. 62, pi. xli. figs. 1 and 2. 



3 Oldham & Morris (63), pi. ix. fig. 2. 



4 Feistmantel (79), pi. vi. 



5 Jaeger (27), pi. v. fig. 6. 



6 Schenk (67), p. 164, pi. xxxviii. figs. 1-10. 



7 Ibid. p. 163, pi. xxxix. fig. 4. 



8 Hosius & Von Marck (79), pi. xliv. 



