JO . FOSit* PLANTS. 



Schimper, Traite d. Paleont. Veget. vol. i. p. 229. 



Stenzel, Uber die Staareteine, p. 853, pi. xxxiv. tig. 4, and pi. xl. 



Sternberg, Vers. iL p. 173. 



Sterzel, Foss. Pflanzen des Rothl. v. Chemnitz, p. 222. 



Unger, Genera et Species, p. 222. 



Psaromus speciosus. 



Corda, Flora d. Vorwelt, p. 106, pi. xliv. figs. 1-4. 



Unger, Genera et Species, p. 221. 

 Psaronius dubius. 



Corda, Flora d. Vorwelt, p. 108, pi. xxx. figs. 5-12. 



Sternberg, Vers. ii. p. 173. 



Unger, Genera et Species, p. 221. 

 Psaronius Parkericeformu. 



Corda, Flora d. Vorwelt, p. 110, pi. xlvii. figs. 3-6. 



Sternberg, Vers. ii. p. 173. 



Unger, Genera et Species, p. 222. 

 Horizon. Rothliegende. 

 Locality. Saxony : Chemnitz. 



Psaronius, sp. 



Remarks. In addition to the various species of this genus which have been 

 already mentioned, there are in the Collection a number of polished sections 

 showing structure, which have been named by Gotta Psaronius helmintho- 

 tithus, but as under this name Gotta included several species which have since 

 been described by different authors, and as from the want of microscopical 

 sections I have not been able to satisfactorily relegate these specimens to 

 their various species, they are merely placed under the generic name. 



By those interested in the subject, the following works may be 

 consulted : 



Cotta, Die Dendrolithen, 1832. 



Corda, Beitr. zur Flora d. Vorwelt, 1845. 



Goppert, Die Fossile Flora der Perm. Formation, 1865. 



Schimper, Traite d. Paleont. Veget. vol. i. 1869. 



Stenzel, Uber die Staarsteine (Verh. d. Kaiser. Leop. Carl. Akad. d. 



Naturforscher. vol. xxiv.), 1854. 

 Sterzel, Die Fossilen Pflanzen des Rothliegenden von Chemnitz (in der 



Geschichte der Palaeontologie.) 

 Horizon. Eothliegende. 

 Localities. Saxony : Chemnitz. Thuringia : Ilmenau ; Kiff hauser. 



ZYGOPTERIS, Corda, 1845. 

 Beitr. zur Flora der Vorwelt, p. 81 . 

 Zygopteris primseva, Corda. 



Zygopteris primceva. 



Corda, Flora d. Vorwelt, p. 81. 



Goppert, Foss. Flora d. Perm. Form. p. 43. 



Renault, Cours d. Botan. Foss. p. 101, 1883. 



Schimper, Trait6 d. Pal6ont. Veget. vol. i. p. 696. 



Sterzel, Foss. Pflanzen des Rothl. v. Chemnitz, p. 216. 



Unger, Genera et Species, p. 200. 

 Tubicaulis primar>'us. 



Cotta, Die Dendrolithen, p, 19. pi. i. figs. 1, 2. 



Remarks. A portion of the specimen figured by Cotta as Tubicaulis 

 pnmarms, on pi. i. fig. 1 of his ' Dendrolithen ' is in the Collection 

 Horizon. Rothliegende. 

 Locality. Saxony : Chemnitz. 



