Psaronius helmintholithus. 



Cotta (in part), Die Dendrolithen, p. 31, pi. vi, fig. 3, and pi. A, fig. 2. 

 Remarks. The specimen in the Collection is portion of that figured by 

 Cotta as Psaronius helmintholithus on pi. v. fig. 3 of his ' Dentrolithen. 

 Horizon. Eothliegende. 

 Locality. Saxony : Chemnitz. 



Psaronius helmintholithus, Cotta (in part). 



Psaronius helmintholithus. 



Cotta (in part), Die Dendrolithen, p. 31, pi. v. figs. 1-3, 



Gb'ppert, Foss. Flora d. Perm. Form. p. 61. 



Renault, Cours d. Botan. Foss. p. 144, 1883. 



Schimper, Traite d. Paleont. Veget. vol. i. p. 722. 



Stenzel, Uber die Staarsteine, p. 842. 



Sternberg, Vers. ii. p. 173. 



Sterzel, Foss. Pflanzen des Eothl. v. Chemnitz, p. 218. 



Unger, Genera et Species, p. 218. 

 Psaronius medullosus. 



Corda, Flora d. Vorwelt, p. 102, pi. xxxix. 



Unger, Genera et Species, p. 220. 

 Horizon. Rothliegende. 

 Locality. Bohemia : Neu-Pakau. 



Psaronius simplex, Unger. 



Psaronius simplex. 



Corda, Flora d. Vorwelt, p. 95. 



Goppert, Foss. Flora d. Perm. Form. p. 67, pi. vi. figs. 3, 4. 



Schimper, Traite d. Paleont. Veget. vol. i. p. 725. 



Stenzel, Uber die Staarsteine, p. 857. 



Sterzel, Foss. Pflanzen des Rothl. v. Chemnitz, p. 220. 



Unger, Genera et Species, p. 217. 

 Psaronius helmintholithus. 



Cotta (in part), Die Dendrolithen, p. 33, pi. vi. fig. 1. 



Horizon. Rothliegende. 

 Locality. Saxony : Chemnitz^ 



Psaronius Haidingeri, Stenzel. 



Psaronius Haidingeri. 



Goppert, Foss. Flora d. Perm. Form. p. 74, pi. v. fig. 8. 



Renault, Cours d. Botan, Foss. p. 147, 1883. 



Schimper, Traite d. Paleont. Veget. vol. i. p. 728. 



Stenzel, Uber die Staarsteine, p. 878, pi. xxxix. 



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

 Psaronius asterolithus. 



Cotta (in part), Die Dendrolithen, p. 29, pi. A, fig. 1, and pi, iv. figs. 3, 4. 

 Remarks. The specimens of this species in the Collection are portions of 

 those figured by Cotta in ' Die Dendrolithen ' on pi. A, fig. 1, and pi. iv. 

 tig. 3, as Psaronius asterolithus. 

 Horizon. Rothliegende. 

 Locality. Saxony : Chemnitz. 



Psaronius asterolithus, Cotta (in part). 



Psaronius asterolithus, 



Cotta (in part), Die Dendrolithen, p. 29, pi. iv. fig. 1, 2. 



Goppert, Foss. Flora d. Perm. Form. p. 77. 



Renault, Cours d. Botan. Foss. p. 147, pi. xxiv. figs. 5, 6, 1883. 



