24 Arber, Fossil Plants from the Ardwick Series. 



Lepidodendron dichotomum, Zeill. = ? Sternb. 



Lepidophylluin sp. 



Lepidostrobus variabilis L. and H. 



Additional Records by Previous Writers. 



Calaniites {^Stylocalamites) Suckowi Brong. 

 Alethopteris Serli (Brong.) 

 ? Sphenopteris obtusiloba Brong. 

 Mariopteris latifolia (Brong.) 

 Sigillaria elegans Brong. 

 Stigmaria ficoides (Sternb.) 

 Trigonocarpus sp. 



Bradford Series. 



(600 feet below the Ardwick Series.) 



Salter's Records. 



Sphenophylluni sp. 

 Sphenopteris obtusiloba Brong. 

 Neuropteris jlexuosa Brong. 

 Neuropteris tenuifolia (Schl.) 

 Lepidodendron obovatum Sternb. 

 Lepidodendron lycopodioides Sternb. 

 Sigillaria elegans Brong. 

 Sigillaria sp. 

 Lepidostrobus sp. 

 Stigmaria ficoides Sternb. 



Of the ten species from the Ardwick Series which are 

 here described, seven occur in the Middle, and seven in 



^ The following previous determinations are doubtful : OdoiitoffeJis 5^., 

 Sphenopteris {Corynepteris) coralloides (Gutb.). The following records are 

 rejected: Poacites sp. , Calaviites canntvfonnis Schl., Cyclopteris Jlabellata, 

 Linopteris {Dictyopteris) sp,, Lepidostrobiis coniosus L. H., Lycopodites sp. 



