CONCLUSIONS. 



235 



Sphmolepidiwm Eurrianum (Dunk.). 

 S. Sternbergianum (Dunk.). 

 Cf. S. (Sequoia) subiilatum, Heer. 

 Sphenolepidium, sp. 

 Pagiophyllum erassifolium (Sclienk). 

 Pagiophyllum, sp. 

 t Brachyphyllum spinosum, Sew. 

 . obesum, Heer. 



t Pinites Dunkeri, Carr. 

 t P. Carruthersi, Gard. 

 t P. Solmsi, Sew. 

 t P. Bu/ordi, Sew. 



Cf. Nageiopsis heterophylla, Font. 

 t Thuites valdensis, Sew. 



Conites (Araucarites) , sp. 

 t C. armatus, Sew. 



PLANTS 



6EDIS. 



Specimen A. (Vol. I. p. xxxv. PL I. Fig. 7). 



Specimen B. (Vol. I. p. xxxv. PL I. Figs. 8 and 9). 

 t inthamia Saportce, Sew. 

 t Becklesia anomala, Sew. 



Cf. Dichopteris lavigata (PhilL). 



In the accompanying table an attempt is made to show the 

 geographical range of such species as are not confined to the 

 Wealden rocks of England. The occurrence of the same species 

 in different regions is not regarded as necessarily proving honio- 

 taxial strata. A more detailed consideration of the geological 

 correlation of the plant-bearing strata, in which Wealden types 

 occur, will be undertaken elsewhere, as there are still a few 

 species to be described from the English beds. Such plants as 

 Onychiopsis Ifantelli (Brong.), Matonidium Gopperti, Schenk, 

 Ruffordia Gopperti (Dunk.), are by no means confined to one 

 geological horizon ; and it is possible that we have other species, 

 the range of which is not strictly limited to true Wealden strata. 



In the following list are added the chief districts or localities 

 in each country from which the plants have been obtained. The 

 names of the principal authors of the several Wealden floras (or 

 floras containing Wealden species), are given below, with numbers 

 referring to the bibliographies at the end of Part I. and Part II. ; 

 those in the former being printed with A. after the author's name, 

 those in the latter with B. 



