BEITRAG ZUR FLORA DER WEALDENPERIODE. 23 



Nilssonia Brongniarti Bronn. 



Bronn, Leth. geogn. II, Seite 577, Taf. 28, Fig. 14. — Unger, Gen. et spec. plant, foss. pag. 295. 



iV fronde pinnata, pinnis integris , pateniissimis , approximatis vel subremotis , sinu acu- 

 tissimo tnter stinctis, alternis oppositisve , lanceolatis, acuminatis , nervis pluribus va- 

 lidis , singulis cum tenui unico alternantibiis. 

 Cycadites Brongniarti Mantell. Geol. P. 238, T. 39. 

 Hisingera Mantelli Miquel. Monogr. Cycad. P. 61. 



Pterophyllum Brongniarti Morris. Ann. nat. hist. 1841. — Cat. of Brit. Foss. P. 19. 

 In formatione Wealden ad Rietgate in Sussex. 



Zamiostrobus crassus Göpp. 



Göppert, Uebersicht der Arb. von 1844 Seite 129. — Unger, Gen. et spec. plant, ßss. pag. 299. 



Z. strobilo ovato, contco, basi rotundato, apice obtuso, carpidiis pelta rhomboidea sub- 

 quadrangulari convexiuscula terminatis. 

 Zamia crassa Lindl. et Hutt. Foss. Flor. II, S. 153, T. 136. 

 Zamitss crassus Morris. Cat. of Brit. Foss. P. 25. 

 In formatione Wealden ad Yarenland insulae Wight. 



Zamiostrobus sussexiensis Göpp. 



Göppert, Uebersicht der Arb. von 1844 Seite 129. — Unger, Gen, et spec. plant, foss. pag. 299. 



Z. strobilo ovato-oblongo , utrinque truncato, carpidiis minoribus, fret/ueniioribnsf/ue. 

 Zamites sussexiensis Morris. Cat. of Brit. Foss. P. 25. 



Zamia sussexiensis Mantell. Description of some fossil fruits etc. Ann. Mag. Nat. Bist. 1843, 

 XII, P. 71. 



In arenaceo ad Seimeston in Sussex. 



Zamiostrobus pippingfordensis Ung. 



Unger, Gen. et spec. plant, foss. pag. 300. 



Z. slrobilo ovato-oblongo, apice obtuso, carpidiis pelta rhomboidea convexiuscula transverse 

 bicarinata terminatis. 



In arenaceo ad Pippingford in Sussex. 



Zamiostrobus Fittoni u™. 



Unger, Gen. et spec. plant, foss. pag. 300. 



Z. strobilo ovato subgloboso, basi truncato, apice obtusiusculo, carpidiis pelta rhomboidea 

 terminatis. 



In stratis calcariis Purbek dictis Angliae. 



