240 PODOZAMIIES. 



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 Yorkshii-e plants. 



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

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

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

 The frond so named by Monis 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, suflS.cient 

 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 Zmnites 

 proximus, Feistmantel,* Cijoadites Blanfordianus, Oldham & Morris," 

 Pterophyllum Footeanum, Peistmantel.^ Another species similar 

 to Bioonites Natliorsti is that described by Jaeger as Osmundites 

 pectinatus ^ ( = Pteropliyllum Jaegeri, Brongn.). The Ehsetic 

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

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



The frond figured by Hosius & Von Marck * as Bioonites^ 

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



A Genus of Doubtful Affinity. 

 Genus PODOZ AMITE S, Braun. 



[Miinster : Beitrage 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 



' Richards (84), p. 3. 



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



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



4 Feistmantel (79), pi. vi. 



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



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

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



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



