INTKODUCTIOir. 



that it should necessarily be included in the list of "Wealden plants; 

 very possibly, as Zeiller and Renault have shown, this puzzle to 

 palseobotanists may find its proper place among fossil animals.^ 



Schenk's important contributions, '^ while correcting the earlier 

 work of Dunker and others, supply much additional information 

 as to the flora of the German Wealden. Several of Bunker's 

 species are found by Schenk to have no claim to stand as such, 

 but are shown by the more perfect material collected since 1846 

 to be fragments of different portions of one and the same species. 



Following the two papers by Schenk we have a useful Monograph 

 by Struckmann,' in which the following list of Wealden plants is 

 given; and this maybe taken to represent the species recorded from 

 Grerman Wealden rocks up to 1880. 



FucoiditetB ? 



Equisstum Burehardti, JiTxak.. = Equi- 



setites Burehardti, Dunk. 

 Sphenopteris MantelU, Brong. = Ony- 



chiopsis MantelU (Brong.). 

 S. Gopperti, Dwak. = Siifordia Gop- 



perti (Dunk.). 

 S. delicatissima, Schenk. 

 Lomatopteris Sehimperi, Schenk. 

 Baiera pluripartita, Schimp. 

 Fecopteris Funkeri, ScMmp. = Clado- 



phlebis Funkeri (Schimp.). 

 F. Murehisoni, Dunk. 

 F. Geinitzii, Dunk.* Schenk's figure = 



Sphenopteris Fittnni, sp. nov. 

 Alethopteris Browniana (Dunk.) = 



Cladophlebis Browniana (Dunk.). 

 A. Suttoni (Dunk.). 

 A. cycadina, Schenk. 

 Matonidium [Laccopteris) Gopperti 



(Schimp.). 



Laccopteris Funkeri, Schenk = .3fic;'0- 



dictyon Funkeri (Schenk). 

 Sagenopteris MantelU (Dunk.). 

 Fausmannia dichotoma, Dunk. 

 Marsilidium speeiosum, Schenk. 

 Jeanpaulia Brautiiana, Dnnk. 

 Tempskya Sehimperi, Corda. 

 Frotopteris Witteana, Schenk. 

 Clathraria Zyelli, S. and W.^ 

 Cycadites Moemeri, Schenk. 

 AnomozamitesSehaumbu7-yense(T)'\m\.). 

 Fterophyllum Fyellianum, Dunk. 

 Fioonites Funkerianus (Grbpp.). 

 F. Goppertianus (Dunk.). 

 Faehyphyllum curvifolium (Dunk.). 

 P. crassifolium, Schenk. 

 Abietites Linkii (A. B,mr.). 

 Sphenolepis Sternhergiana (Dunk.). 

 1$. Kiirriana (Dunk.). 

 Spirangium Jugleri (Ett.). 



1 Compt. Rend. vol. cvii. 1888, p. 1022. 



2 Palseontographica, vol. xix. 1871, and vol. xxiii. 1875. 

 " Weald. Hannover, p. 44. 



* The existence of Dunker's Wealden species, P. Geinitzii, seems to have heen 

 overlooked by Gutbier and others, who make use of the same name for a Permian 

 fern of a different character, e.g. See Sterzel, Flor. Koth. Plauenschen Grunde, 

 Ahh. k. Sachs. Ges. Wiss. math. phys. CI. vol. xix. p. 120, 1893. 



* ManteU is given by Struckmami as the author of this species. 



